Develop Bugs

[Q] [solved] Suddenly, horrible battery life out of nowhere

Hey guys,
I have been trying to solve this on my own for two days now, but I would like to consult the forum now.
So, I was running Pink Sense 1.8 for about 2 weeks with setCPU profiles and was getting satisfactory battery life. I had re-calibrated the battery info maybe 2 weeks before flashing the Pinky ROM (as described here: http://forum.xda-developers.com/showthread.php?t=755903).
All of a sudden, without any app installation or change to either the ROM or software/hardware settings I started getting horrible battery life. The battery would drain completely for less than 6 hours with GPS, 3G, and WiFi off.
*Another strange thing (which I don't know if it was related to my battery issue or not) was that when I would plug the charger it would turn the screen on but switch to the default clock app instead of the HTC sense homescreen. If I pressed home or back it would disappear. This would happen randomly and not always.
So, I figured it's time to jump ROMs and I decided on LeeDroid. I wiped cache, etc. and flashed the ROM. Out of the box the battery life was again pretty crappy (the battery was virtually disappearing in front of my eyes). I found some threads where it was suggested to disable market notifications and that slowed the battery drain a bit but it's still crappy.
I just charged it fully, 3G and WiFi off, and was with the screen off for 99% of the time and it still drained 18% battery in 1hour and 25 mins.
So, my question is - what the hell is going on???
Should I wipe battery info? Should I install a non-WiFi n rom? What more can I do?
I would really appreciate help and advice.
p.s. I am running the latest radio too.

wich radio have you the .23 drains the batery with my desire try with the .30_2
the battery life is better.
did you try reboot your phone maybe your optical joystick dead and drain your battery.

load any new apps recently?

cr1960 said:
load any new apps recently?
Click to expand...
Click to collapse
As I said, the problem appeared with absolutely no new apps installed and persists after flashing a new ROM.
How do I know if my optical joystick is dead? It still works if that's what you mean (although I don't like using it).
I will try flashing the 30_2 radio, thanks for that suggestion.

slyn4ice said:
How do I know if my optical joystick is dead? It still works if that's what you mean (although I don't like using it).
Click to expand...
Click to collapse
If it works he's not dead
after flashing your radio and if the battery still drain check if the rom you use has his own rules for the cpu freq. if you are in that case don't use cpufreq or something like that because of conflicts.
PS: Sory for my bad english

Sithlord31 said:
If it works he's not dead
after flashing your radio and if the battery still drain check if the rom you use has his own rules for the cpu freq. if you are in that case don't use cpufreq or something like that because of conflicts.
PS: Sory for my bad english
Click to expand...
Click to collapse
Thanks, I just flashed the 17_2 radio. It doesn't look like LeeDroid has any requirements for cpu frequencies. I will post an update after an hour.

slyn4ice said:
Thanks, I just flashed the 17_2 radio. It doesn't look like LeeDroid has any requirements for cpu frequencies. I will post an update after an hour.
Click to expand...
Click to collapse
There seems to be no change with 17_2 radio. 15% drop for 1h45m. I will go through a charge/recharge cycle and if nothing has changed I will flash the 30_2 radio.

Some people had the same effect. It happens when you flash your ROM while the phone is connected to power/charging. The battery stats simply get messed up.
An easy indication for this is if you charge the phone fully while powered on, LED is green, as soon as you unplug the charger the battery drops to some 90%.
The fix is easy too. If the phone is fully "charged" while on, disconnect the charger and switch it off. Then plug the charger in again. The LED should turn orange again and the remaining percentage will be charged. Wait until you have a green LED and your problems are hopefully gone.
Look out for the battery calibrating thread here for more info.
Hope that helps...
Mac

mmaacc said:
Some people had the same effect. It happens when you flash your ROM while the phone is connected to power/charging. The battery stats simply get messed up.
An easy indication for this is if you charge the phone fully while powered on, LED is green, as soon as you unplug the charger the battery drops to some 90%.
The fix is easy too. If the phone is fully "charged" while on, disconnect the charger and switch it off. Then plug the charger in again. The LED should turn orange again and the remaining percentage will be charged. Wait until you have a green LED and your problems are hopefully gone.
Look out for the battery calibrating thread here for more info.
Hope that helps...
Mac
Click to expand...
Click to collapse
Thanks for the suggestions. I always thought it would be better to flash with the ac adapter plugged.
I have tried the method you described above but it hasn't really solved any of the problems.
The battery drain is now at least manageable - i had 50% drop while sleeping for 6 hours (at least it didn't drain it completely). I am going to flash the 30_2 radio and try again.

slyn4ice said:
Thanks for the suggestions. I always thought it would be better to flash with the ac adapter plugged.
I have tried the method you described above but it hasn't really solved any of the problems.
The battery drain is now at least manageable - i had 50% drop while sleeping for 6 hours (at least it didn't drain it completely). I am going to flash the 30_2 radio and try again.
Click to expand...
Click to collapse
If you have access to a spare battery, maybe you can try that too?
Normally when I have unexplained problems with the phone, the last drastic step I would take is to wipe everything, data/app/cache. Do a nandroid backup first so that if that doesn't solve your problem you could always get back all your setups.
You could also try Titanium to help save your setup. But I would be careful with what I restore. The last thing I would want is to get the messed up setting back in.
I have noticed also whenever I flash a new rom, the battery seems to get worse. So I would always do a recalibration. The proper step is here:
http://forum.xda-developers.com/showthread.php?t=755903 (and wipe the battery status on the last power up before using).
Lastly, I would use as stock as possible first to see if it is things that I introduce that cause the problem.

pehkblui said:
If you have access to a spare battery, maybe you can try that too?
Normally when I have unexplained problems with the phone, the last drastic step I would take is to wipe everything, data/app/cache. Do a nandroid backup first so that if that doesn't solve your problem you could always get back all your setups.
You could also try Titanium to help save your setup. But I would be careful with what I restore. The last thing I would want is to get the messed up setting back in.
I have noticed also whenever I flash a new rom, the battery seems to get worse. So I would always do a recalibration. The proper step is here:
http://forum.xda-developers.com/showthread.php?t=755903 (and wipe the battery status on the last power up before using).
Lastly, I would use as stock as possible first to see if it is things that I introduce that cause the problem.
Click to expand...
Click to collapse
I think I can definitely confirm the radio is the problem. There is barely any battery drain in airplane mode (1% drain per hour with WiFi on). I am back to 32.43.00.32U_5.09.00.20 but it seems to drain battery faster than before.
Now that I think back, this battery problem started when i switched to the newer 32.47.00.32U_5.10.05.23 radio. No matter what I do now though even after rolling back to older radios it's still a problem. Damn it.

slyn4ice said:
I think I can definitely confirm the radio is the problem. There is barely any battery drain in airplane mode (1% drain per hour with WiFi on). I am back to 32.43.00.32U_5.09.00.20 but it seems to drain battery faster than before.
Now that I think back, this battery problem started when i switched to the newer 32.47.00.32U_5.10.05.23 radio. No matter what I do now though even after rolling back to older radios it's still a problem. Damn it.
Click to expand...
Click to collapse
Don´t know (because i never updated radios above .20 and have no problems with battery)...but...maybe flash a original ruu rom...and root again
maybe this help...with kind regards..Alex

Alex-V said:
Don´t know (because i never updated radios above .20 and have no problems with battery)...but...maybe flash a original ruu rom...and root again
maybe this help...with kind regards..Alex
Click to expand...
Click to collapse
that doesn't help, ive tried it already

TieT said:
that doesn't help, ive tried it already
Click to expand...
Click to collapse
Ok, I have awesome news! Thanks to user "lenik" on modaco forums I got some extra RIL settings (radio settings) he found for Softbank (my cellphone company here in Japan). Here are the settings:
ro.ril.enable.a52=0
ro.ril.enable.a53=1
ro.ril.fast.dormancy.timeout=3
ro.ril.enable.sbm.feature=1
He said the first two should be found on most ROMs, while the last two are probably carrier specific for SoftBank. Anyways, I just downloaded the latest LeeDroid ROM, modified /system/build.prop file (none of the above settings were in there) to include the above settings and ... got a 5% drop in battery for 10 hours on standby (wifi off, setCPU set to 245Mhz when screen is off). This is unbelievable.
Anyways, here are lenik's blog posts about it:
http://lazydroid.com/2010/06/battery-life-improved/
http://lazydroid.com/2010/06/back-to-1-21-...ry-consumption/
I hope this helps other people out there!

slyn4ice said:
Ok, I have awesome news! Thanks to user "lenik" on modaco forums I got some extra RIL settings (radio settings) he found for Softbank (my cellphone company here in Japan). Here are the settings:
ro.ril.enable.a52=0
ro.ril.enable.a53=1
ro.ril.fast.dormancy.timeout=3
ro.ril.enable.sbm.feature=1
He said the first two should be found on most ROMs, while the last two are probably carrier specific for SoftBank. Anyways, I just downloaded the latest LeeDroid ROM, modified /system/build.prop file (none of the above settings were in there) to include the above settings and ... got a 5% drop in battery for 10 hours on standby (wifi off, setCPU set to 245Mhz when screen is off). This is unbelievable.
Anyways, here are lenik's blog posts about it:
http://lazydroid.com/2010/06/battery-life-improved/
http://lazydroid.com/2010/06/back-to-1-21-...ry-consumption/
I hope this helps other people out there!
Click to expand...
Click to collapse
VERY nice results! Do you think that these RIL settings should work on any network/carrier?
It's very odd because today I noticed my battery performance dropping large, BUT before it was always great. I am also on LeeDrOiD 2.1, and while at home, with WiFi + BT on AND connected to my router + handsfree, I lose only about 3-4% an hour.
Today when I left the house and went shopping, I was in the store for 1.5 hrs and I had lost near 15%! I had even turned off Wifi so it wasn't trying to scan APs. Very very strange...
Anyways, I want to maybe try these RIL settings if it will work on any carrier. Does anyone know if I can edit build.prop while in recovery, or do I have to edit it in the ROM .zip then reflash the entire ROM?
Thanks for the post and hunting down a solution slyn4ice, I'm glad that it has helped you out big time!
*** EDIT *** - After looking more into my JuicePlotter graphs, I notice that the battery life gets killed when I am using APN / 3G / HSPA network. I would have thought Wifi would take more power, but that seems not to be so. I DID have "Network Mode" set to "WCDMA only" (in Mobile Network Settings) because I heard it might save battery not having to switch back and forth from EDGE to 3G, but I guess that didn't help...I've since switched it back, but need a lot of charging before I can test again.
Does anyone else notice that when they're on 3G/H the battery drops MUCH quicker than if you were connected to Wifi instead? This is just my last hurdle towards a PERFECT ROM!
Thanks in advance all!

3G uses waaay more power than WiFi. After all, the data usually travels long distances and needs to be amplified. This effect is pronounced especially if in the limit zones of 2G/3G coverage and you have 3G preferred, the phone boosts the power to maximum to maintain 3G.
Gsm Auto (PRL) prefers 2G if 3G coverage is too low. WCDMA Preferred tries to maintain 3G connection even if it means sacrificing battery life.
If you are constantly in good coverage zones, no problem, but to the people living on the edges of proper 3G coverage it meas a big hit to battery life, especially if the mobile data is used. This partly explains why some get superb battery life and others far worse.

Jgruar said:
3G uses waaay more power than WiFi. After all, the data usually travels long distances and needs to be amplified. This effect is pronounced especially if in the limit zones of 2G/3G coverage and you have 3G preferred, the phone boosts the power to maximum to maintain 3G.
Gsm Auto (PRL) prefers 2G if 3G coverage is too low. WCDMA Preferred tries to maintain 3G connection even if it means sacrificing battery life.
If you are constantly in good coverage zones, no problem, but to the people living on the edges of proper 3G coverage it meas a big hit to battery life, especially if the mobile data is used. This partly explains why some get superb battery life and others far worse.
Click to expand...
Click to collapse
Amazing explanation and reaffirmation of my thoughts Jgruar (JuicePlotter confirms it). I guess from my old WinMo days, I always remember Wifi being the power hog. I actually did change it back to GSM/Auto since that was the only change I made lately, but I thought I'd chime in while my device was charging back up, hoping for a reply just like that!
Thanks a bunch!

scar45 said:
VERY nice results! Do you think that these RIL settings should work on any network/carrier?
It's very odd because today I noticed my battery performance dropping large, BUT before it was always great. I am also on LeeDrOiD 2.1, and while at home, with WiFi + BT on AND connected to my router + handsfree, I lose only about 3-4% an hour.
Today when I left the house and went shopping, I was in the store for 1.5 hrs and I had lost near 15%! I had even turned off Wifi so it wasn't trying to scan APs. Very very strange...
Anyways, I want to maybe try these RIL settings if it will work on any carrier. Does anyone know if I can edit build.prop while in recovery, or do I have to edit it in the ROM .zip then reflash the entire ROM?
Thanks for the post and hunting down a solution slyn4ice, I'm glad that it has helped you out big time!
*** EDIT *** - After looking more into my JuicePlotter graphs, I notice that the battery life gets killed when I am using APN / 3G / HSPA network. I would have thought Wifi would take more power, but that seems not to be so. I DID have "Network Mode" set to "WCDMA only" (in Mobile Network Settings) because I heard it might save battery not having to switch back and forth from EDGE to 3G, but I guess that didn't help...I've since switched it back, but need a lot of charging before I can test again.
Does anyone else notice that when they're on 3G/H the battery drops MUCH quicker than if you were connected to Wifi instead? This is just my last hurdle towards a PERFECT ROM!
Thanks in advance all!
Click to expand...
Click to collapse
From what I understand you need to update RIL settings in the ROM and then flash the modified ROM. I just edited the /system/build.prop file in the Leedriod zip file and saved (didn't resign or anything). Flashed the ROM through ROM Manager recovery (I also tried flashing it through the normal recovery but it failed on the "verifying image" stage - I guess because I didn't resign the archive).
As far as the options themselves - only the last two should be carrier specific. I haven't researched anything about them, so I have absolutely no idea what they actually do. "lenik" just copied them from an official Softbank ROM.
God, i just checked JuicePlotter and i dropped 1% for 1h10m (everything off except the radio + setCPU to ~400Mhz when screen off). This is just crazy ... awesome ))))

Is the setting rom specific, or will it work om opendesire?
Sent from my HTC Desire using XDA App

slyn4ice said:
Ok, I have awesome news! Thanks to user "lenik" on modaco forums I got some extra RIL settings (radio settings) he found for Softbank (my cellphone company here in Japan). Here are the settings:
ro.ril.enable.a52=0
ro.ril.enable.a53=1
ro.ril.fast.dormancy.timeout=3
ro.ril.enable.sbm.feature=1
He said the first two should be found on most ROMs, while the last two are probably carrier specific for SoftBank. Anyways, I just downloaded the latest LeeDroid ROM, modified /system/build.prop file (none of the above settings were in there) to include the above settings
Click to expand...
Click to collapse
LeeDroid ROM (LeeDrOiD_V2.1_A2SD+_.zip) build.prop includes:
ro.ril.enable.a52=0
ro.ril.enable.a53=1
but no:
ro.ril.fast.dormancy.timeout=3
ro.ril.enable.sbm.feature=1
Just checked.

[Q] Battery drain and 3G connectivity loss

Hi all!
Since a few months ago, my Desire has been having two major issues:
- Huge battery drain in 2 to 5h time (unable to identify application responsible, powertutor reports android system or os - can't remember -, while built-in battery usage monitor reports either display or cell standby - the second appears especially when the phone is idle and supposedly sleeping). The few times I enabled airplane mode, I got double battery time, though it doesn't come close to former normal battery time.
- 3G connectivity loss, when going through no signal areas or when the phone is forced to switch between GPRS and 3G and vice-versa.
Regarding the second issue, I've already tried to enable GSM (auto-PRL) and the result is practically the same as having 3G enabled. Only factory resetting after enabling the former setting and choosing GPRS only, in Settings works in no signal downtime.
Nothing I've tried takes care of the battery draining issue, even hard-resets. I've already flashed different roms from Eclair to Gingerbread, from unrooted stock to root stock-based: no real change.
So after this rambling, my question what is more likely either some hardware malfunction or a software bug in the android system or in some application?
Anyway, I'll try to use systempanel or watchdog to try pinpointing the culprit.
Thank you.

Flash latest radio

Also worth thinking about the kernel, I had a similar thing to you, and it was because I flashed a different kernel to the one packaged with the rom.
I would also try a full wipe, ie cache, data, system etc. in recovery and installing something clean eg oxygen rom.
The suggestion above about the radio is definitely worth trying also I would check that your current ril is compatible with your radio version:
http://forum.xda-developers.com/showthread.php?t=902752

Hello! Sorry for not answering sooner.
I have been running the latest radio for at least one month, and it hasn't changed that much the issue.
Also, at some point, I did try another kernel, having seen that suggestion elsewhere in the forums. It also didn't change much.
Finally, I have also tried flashing and using the clean oxygen gingerbread rom. The battery time improved a bit, but didn't go back to normal.
Still, after seeing the results of systempanel monitoring, I will try flashing oxygen rom again because, perhaps with 2.3.4, whatever the issue is, it might have been fixed.

Try to calibrate your battery:
1.) Load phone till full when on
2.) Turn off and load to green led
3.) Turn completely on, turn off and load until green led appears
4.) Boot into recovery, wipe battery stats and now use phone as normal
No warranty for any damage.
Sent from my HTC Desire using XDA App

Did it start when you flashed something new?

Hello!
That is possible. However, I have flashed and formated the phone many times since then and there has been no change.
Also, I have been monitoring the cpu usage through systempanel as suggested in some other threads, throughout the last weeks and in average, there's no installed application going further than 10% cpu usage consistently. When seeing the history of usage, at the top I have the system process, which has an average consumption of 0.2% over one week.
So, the phone seems to be working normally, but when using the currentwidget app to see the current drawn from the battety in each instant, at the best I get 50-70 mA, at the worst I get 700-800 mA. On average, 300-500 mA consistently.
I think something is draining the battery consistently much more than normal and also causing the baseband or the radio subsystem to crash, when switching from 2G to 3G or vice-versa.
I have done everything suggested in this thread, except for flashing a new clean oxygen rom and I've got no result.
What could be causing this: some hardware problem?
Thank you for your patience.

Maybe try the battery in someone else's desire, that you know functions ok, and their battery in yours? Perhaps the battery is dying?

Since I haven't been able to find anyone with an HTC Desire and I can't be certain if the problem is with the battery itself, I'll just send my Desire for repair to HTC.
Hopefully, they'll find and solve whatever the problem is.
Thank you all, anyways.

Kernel Wakelocks and You

I am opening this thread to talk about kernel Wakelocks. It's a branch of this discussion in the Franco's Kernel thread.
Hopefully we can research what a lot of these wakelocks are and find ways of minimizing them in order to increase the efficiency (and reduce power consumption) on our devices.
What is a Wakelock?
A wakelock is a software method for applications to control the power state of your device. The purpose of a wakelock is in its name, to lock your device in an awake state keeping the CPU running and preventing it from entering Deep Sleep (Think of a music app or video player). A wakelock can also cause your device to turn on (think syncs or notifications).
A poorly coded application can acquire a wakelock and not release it, causing your device to remain on.
A partial wakelock means the CPU is ON, but the screen is OFF.
A full wakelock means the CPU and Screen are ON. (we don't really need to worry about this)
Sources:
http://developer.android.com/reference/android/os/PowerManager.html
http://developer.android.com/reference/android/os/PowerManager.WakeLock.html
How to help:
Install BetterBatteryStats which will show you what the wakelocks are on your device.
If you don't know what a specific wakelock is doing. Google it. Don't just google the wakelock name verbatim. Use part of it. They are usually logically named. But most often they are shortened or turned into acronyms (there are so many in IT) which makes them cyptic.
Kernel wakelocks are low level/hardware wakelocks from the kernel. We can only reduce these by modifying the kernel or reducing the usage of a certain feature of the kernel. By researching these we can improve the battery consumption and performance of the Kernel.
Partial wakelocks are wakelocks from apps. These can be reduced by uninstalling or disabling features in software. We can talk about those here too though it shouldn't be the focus as the answer will be "Uninstall/Disable feature X and talk to the app author". Preferably we should talk about partial wakelocks from Google services like maps and latitude.
psycho2097 said:
I think it would benefit a lot of noobs here,me included if someone started a thread compiling a list of the known wakelocks and how to avoid or get rid of them. For the life of me I can't figure out mipi_link, alarm_rtc,musb_autosuspend and I have no idea how to remove wlan_rx and vbus_tuna_otg. I would highly appreciate some help on these.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
wlan_rx is wireless LAN receive. Turn off wifi.
musb_autosuspend_wake_lock im pretty sure is a kernel powermanagement method to turn off power to the micro usb port and have any attached devices be placed in a power suspend mode. Probably most useful for the USB OTG support on this port.
alarm_rtc is Real-time clock alarm. It isn't the alarm to wake you up, tho it could be used by that. It's more like a scheduler on your phone, to make sure it is not sleeping when an application needs it. "AlarmManager is a universal process that MANY apps use to update time, push you notifications, etc. In most cases, it is a necessity; in other cases, you should really check it out and disable/uninstall things that have invoked it too much."
Sources:
http://developer.android.com/reference/android/app/AlarmManager.html
https://github.com/asksven/BetterBatteryStats-Knowledge-Base/wiki/AlarmManager
vbus_tuna_otg sounds like virtual bus for USB OTG devices. According to Franco this wakelock occurs when your "device [is] attached to the USB." From this I would take it to mean that if your GNex is attached to a computer via USB you will see this wakelock.
mipi_link stands for Mobile Industry Processor Interface but I am unsure of what this does specifically. From googling it it seems highly related to the cameras. Maybe its how we can see a live feed of the camera from the device.
Sources:
http://en.wikipedia.org/wiki/Mobile_Industry_Processor_Interface
PowerManagerService is the kernel wakelock that is a container for all of the partial wakelocks on the device.
Sources:
https://github.com/asksven/BetterBatteryStats-Knowledge-Base/wiki/PowerManagerService
AudioOut_1 AudioOut is used to play notification and system sounds. Putting your device on silent will make this go away.
Sources:
https://github.com/asksven/BetterBatteryStats-Knowledge-Base/wiki/AudioOut_1
Revisions:
2012.01.24 - Added "what is a wakelock" section
2012.01.24 - Initial Post

Awesome. theres also a wiki in the betterbatterystats website that explains some of the more known wakelocks, nonetheless, these will be very helpful to a new user.
https://github.com/asksven/BetterBatteryStats-Knowledge-Base/wiki/_pages
Also, the betterbatterystats thread at XDA has some intro level info.
edit: I just realised you already posted individual links.

These wake locks are beginning to piss me off really. Pardon my frustration. Check the screen shots of better battery stats. I don't have touch sounds checked or nfc enabled. I did use media player to play music in the train. I have these wake locks all over the place and haven't found any solution yet. Anyone any help much appreciated.this is all with stock rooted running Jame bond kernel. Stock kernel was better. Using default UV settings and some profiles.
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Sent from my Galaxy Nexus using XDA App

vick1377 said:
These wake locks are beginning to piss me off really. Pardon my frustration. Check the screen shots of better battery stats. I don't have touch sounds checked or nfc enabled. I did use media player to play music in the train. I have these wake locks all over the place and haven't found any solution yet. Anyone any help much appreciated.this is all with stock rooted running Jame bond kernel. Stock kernel was better. Using default UV settings and some profiles.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Wakelocks are a normal part of the system. You can't get rid of them, but you can minimize the unnecessary ones for sure.
Yeah its unfortunate that the NFC wakelock occurs even with it disabled. Thankfully its very minimal.
The Audioout_1 wakelock im sure is all audio events. Like notifications and perhaps even music playing. Nothing you can do here.
Modem_USB im guessing is your USB Tethering for data? If you turned that off you might get rid of them as they don't even show up on mine.
Basically I would just be focusing on wakelocks that are proportionately higher than the others. If most wakelocks are 2-3 minutes after a full days use but you see a one or more holding wakelocks that are in the double digits, check those out.

Thank you for a quick response. Where do I turn off USB tethering which I don't have? As you see some of partial locks are very high. Also once you stop using per say audio player or mp3 player shouldn't that audio out wake lock go down or disappear. Off topic question when I flashed Jame bond kernel did I have to wipe cache and dalvik cache?
Are there some apps which can tell which apps are bringing these locks? I can post alogcat logs later from PC as I can't attach from phone as it only allows screenshots from gallery
Sent from my Galaxy Nexus using XDA App

vick1377 said:
Thank you for a quick response. Where do I turn off USB tethering which I don't have? As you see some of partial locks are very high. Also once you stop using per say audio player or mp3 player shouldn't that audio out wake lock go down or disappear. Off topic question when I flashed Jame bond kernel did I have to wipe cache and dalvik cache?
Are there some apps which can tell which apps are bringing these locks? I can post alogcat logs later from PC as I can't attach from phone as it only allows screenshots from gallery
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Settings > More... > Tethering & Portable Hotspot > Make sure everything here is unchecked. You can only check/uncheck USB Tethering if the device is plugged in.
If you stop playing audio I would assume the audioout_1 wakelock to reduce significantly. If you look at your screenshot you see Android Media Player holding a wakelock for 23 minutes, and Audioout_1 for 24 minutes.
So I am assuming that if you didnt listen to any audio, audioout_1 would just say about 1 minute. You may never get it to dissappear fully even if the device is muted. This is something you'd want to try on your own and report back. Remember we're doing research together I'm not doing it for you
As for wiping cache and dalvik after flashing a kernel. Franco says you do not have to. So personally I don't. It definitely doesn't hurt other than wasting time. If you do flash a ROM though you must wipe both caches.
Finally you need to decide how much you want to reduce wakelocks. Like if you are listening to music there is nothing wrong with having your device awake. It shouldn't kill THAT much battery. Esp if you clock down to 350mhz.

You can dramatically reduce the AudioOut wakelock by disabling the following in SETTINGS > SOUNDS:
Touch sounds, dial pad touch tones and screen lock sound.
Disabling these three options eliminated my problem completely.
As for myself:
MIPI_LINK continues to be the #1 destroyer of my battery life, regardless of what ROM or kernel I flash. Even just flashing the ROM, wiping the battery stats and then leaving the phone on my desk untouched for 12+ hours can cut 10-20% off my battery life.
It's ridiculous. There is absolutely something wrong with the battery drain on the Galaxy Nexus, but some people have it, and others don't.

Wake locks
sishgupta said:
Settings > More... > Tethering & Portable Hotspot > Make sure everything here is unchecked. You can only check/uncheck USB Tethering if the device is plugged in.
If you stop playing audio I would assume the audioout_1 wakelock to reduce significantly. If you look at your screenshot you see Android Media Player holding a wakelock for 23 minutes, and Audioout_1 for 24 minutes.
So I am assuming that if you didnt listen to any audio, audioout_1 would just say about 1 minute. You may never get it to dissappear fully even if the device is muted. This is something you'd want to try on your own and report back. Remember we're doing research together I'm not doing it for you
As for wiping cache and dalvik after flashing a kernel. Franco says you do not have to. So personally I don't. It definitely doesn't hurt other than wasting time. If you do flash a ROM though you must wipe both caches.
Finally you need to device how much you want to reduce wakelocks. Like if you are listening to music there is nothing wrong with having your device awake. It shouldn't kill THAT much battery. Esp if you clock down to 350mhz.
Click to expand...
Click to collapse
Opening this thread is the best thing. Can't appreciate enough. So, I always have the phone in vibrate mode but turned to silent mode and checked the better battery stats, the audioout_1 still there but I think it's showing still the same as 25 minutes or so and but % has gone down to 6-7% from 10% and above. Regardless the time is not increasing even though it the wake lock is still there. I'm wondering if it doesn't refresh until after fully charge/unplugged. I checked both kernel and partial wake locks with option since unplugged and since charged. What I will do next is drain the battery fully few times too since it's an extended battery I got last week?
One thing for sure I was getting better battery life with stock rooted rom and stock kernel with some setcpu profiles. I made all the nandroid, titanium backups, what I will do next is flash the stock kernel and monitor the results and report back here for comparison. After then I will be super tempted to flash 4.0.3 franco's ROM and nightly kernel . I'm debating to wait for OTA 4.0.3 or custom ROM. I'm honestly not at all happy with jame bond kernel in terms of battery life. Can you also suggest some good radios to flash? Part of the problem could be the phone toggling between 3g and 4g connection. Most places I do get consistently but sometimes it switches back to 3g. Flashing new radio might improve the signal strength to keep it consistent on 4g so that no toggling required.
Absolutely we are doing this research together no doubt and you are helping a tons
---------- Post added at 01:48 PM ---------- Previous post was at 01:24 PM ----------
Regarding USB tethering, did you mean plugged via outlet or via data cable connecting to computer? When connected via charger cable (not data/charger cable that came with it) to AC outlet, I see usb tethering disable and grayed out. I think you probably meant via data cable connecting to USB port of computer. I will do that tonight once I get home and check to see if these usb related wake locks go away or reduce.

sishgupta said:
Wakelocks are a normal part of the system. You can't get rid of them, but you can minimize the unnecessary ones for sure.
Yeah its unfortunate that the NFC wakelock occurs even with it disabled. Thankfully its very minimal.
The Audioout_1 wakelock im sure is all audio events. Like notifications and perhaps even music playing. Nothing you can do here.
Modem_USB im guessing is your USB Tethering for data? If you turned that off you might get rid of them as they don't even show up on mine.
Basically I would just be focusing on wakelocks that are proportionately higher than the others. If most wakelocks are 2-3 minutes after a full days use but you see a one or more holding wakelocks that are in the double digits, check those out.
Click to expand...
Click to collapse
You are right in the audio wakelock, it happens only when you play something. Its not bad, its not something you should be trying to reduce.
Its not faulty, it happens only when anything is playd, screen lock sounds will significantly increase this, because that does cause a faulty wakelock.
sishgupta said:
Settings > More... > Tethering & Portable Hotspot > Make sure everything here is unchecked. You can only check/uncheck USB Tethering if the device is plugged in.
If you stop playing audio I would assume the audioout_1 wakelock to reduce significantly. If you look at your screenshot you see Android Media Player holding a wakelock for 23 minutes, and Audioout_1 for 24 minutes.
So I am assuming that if you didnt listen to any audio, audioout_1 would just say about 1 minute. You may never get it to dissappear fully even if the device is muted. This is something you'd want to try on your own and report back. Remember we're doing research together I'm not doing it for you
As for wiping cache and dalvik after flashing a kernel. Franco says you do not have to. So personally I don't. It definitely doesn't hurt other than wasting time. If you do flash a ROM though you must wipe both caches.
Finally you need to device how much you want to reduce wakelocks. Like if you are listening to music there is nothing wrong with having your device awake. It shouldn't kill THAT much battery. Esp if you clock down to 350mhz.
Click to expand...
Click to collapse
again, hes right here, if you listen to music continuously for a hour or so, and use only the volume key long-press to skip tracks, the gnex uses an extremely low power DAC to play music, takes only around 60-70 ma. You could play for ages without losing significant battery.
I disagree on the cache clean process tho. I have flashed a lot of roms/kernels, and not observing the correct procedure can cause significant problems.Most kernels use different tweaks, mods and scripts to make your system perform better, and its highly possible for one of the tweaks to just stay over and conflict with your new kernel, causing heavy wakelocks. When that happens, your best bet is wiping anyways. So better safe than sorry.
Thracks said:
You can dramatically reduce the AudioOut wakelock by disabling the following in SETTINGS > SOUNDS:
Touch sounds, dial pad touch tones and screen lock sound.
Disabling these three options eliminated my problem completely.
As for myself:
MIPI_LINK continues to be the #1 destroyer of my battery life, regardless of what ROM or kernel I flash. Even just flashing the ROM, wiping the battery stats and then leaving the phone on my desk untouched for 12+ hours can cut 10-20% off my battery life.
It's ridiculous. There is absolutely something wrong with the battery drain on the Galaxy Nexus, but some people have it, and others don't.
Click to expand...
Click to collapse
There is nothing wrong. The thing wrong here is that people have misconceptions. DONT CLEAR BATT STATS. It has been confirmed to not change anything. That was old battery tech. After flashing a new rom, i always do 2-3 charge cycles. after a new kernel, drain till empty then charge and use. I may be wrong, but I have never experienced any issues by this method. I regularly get 1% per 1-2 hrs depending on wifi/data on standby. Even 1% per 4hrs in wifi &data off.
vick1377 said:
Opening this thread is the best thing. Can't appreciate enough. So, I always have the phone in vibrate mode but turned to silent mode and checked the better battery stats, the audioout_1 still there but I think it's showing still the same as 25 minutes or so and but % has gone down to 6-7% from 10% and above. Regardless the time is not increasing even though it the wake lock is still there. I'm wondering if it doesn't refresh until after fully charge/unplugged. I checked both kernel and partial wake locks with option since unplugged and since charged. What I will do next is drain the battery fully few times too since it's an extended battery I got last week?
One thing for sure I was getting better battery life with stock rooted rom and stock kernel with some setcpu profiles. I made all the nandroid, titanium backups, what I will do next is flash the stock kernel and monitor the results and report back here for comparison. After then I will be super tempted to flash 4.0.3 franco's ROM and nightly kernel . I'm debating to wait for OTA 4.0.3 or custom ROM. I'm honestly not at all happy with jame bond kernel in terms of battery life. Can you also suggest some good radios to flash? Part of the problem could be the phone toggling between 3g and 4g connection. Most places I do get consistently but sometimes it switches back to 3g. Flashing new radio might improve the signal strength to keep it consistent on 4g so that no toggling required.
Absolutely we are doing this research together no doubt and you are helping a tons
Click to expand...
Click to collapse
You are correct in assuming it doesnt reset till fully cahrged. When fully charged, the <since charged> counter resets, however, any time you plug it in, the <since unplugged> counter resets.
I dont know whether u hav LTE/GSM, but kk6 does wonders for me in GSM. For example yest i was in a factory from 8am-3pm, with no signal time showing 70%. Absolutely no signal inside factory. I mean , like my whole battry bar is red, almost. My Captivate would be dead by 3pm. The nexus still had 72% juice left when i reached home at 3:30pm, that too with 40 mins screen on.
Also, 4.0.3 may have some issues, but thats y we r here, thats y we bought a nexus, to play with the latest and greatest.
THIS
IS
NEXUS.

psycho2097 said:
I disagree on the cache clean process tho. I have flashed a lot of roms/kernels, and not observing the correct procedure can cause significant problems.Most kernels use different tweaks, mods and scripts to make your system perform better, and its highly possible for one of the tweaks to just stay over and conflict with your new kernel, causing heavy wakelocks. When that happens, your best bet is wiping anyways. So better safe than sorry.
Click to expand...
Click to collapse
I'm just repeating what Franco said. He was very adamant about the kernel having nothing to do with the caches.
psycho2097 said:
DONT CLEAR BATT STATS. It has been confirmed to not change anything.
Click to expand...
Click to collapse
Correct. here is more information regarding this
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
psycho2097 said:
After flashing a new rom, i always do 2-3 charge cycles. after a new kernel, drain till empty then charge and use.
Click to expand...
Click to collapse
IMHO there is no point to this. What would this achieve?
psycho2097 said:
kk6 does wonders for me in GSM.
Click to expand...
Click to collapse
XXKL1 is out. Check it out, its very good. Link in my sig.
psycho2097 said:
Also, 4.0.3 may have some issues, but thats y we r here, thats y we bought a nexus, to play with the latest and greatest.
THIS
IS
NEXUS.
Click to expand...
Click to collapse
Quoted for truth

psycho2097 said:
You are right in the audio wakelock, it happens only when you play something. Its not bad, its not something you should be trying to reduce.
Its not faulty, it happens only when anything is playd, screen lock sounds will significantly increase this, because that does cause a faulty wakelock.
again, hes right here, if you listen to music continuously for a hour or so, and use only the volume key long-press to skip tracks, the gnex uses an extremely low power DAC to play music, takes only around 60-70 ma. You could play for ages without losing significant battery.
I disagree on the cache clean process tho. I have flashed a lot of roms/kernels, and not observing the correct procedure can cause significant problems.Most kernels use different tweaks, mods and scripts to make your system perform better, and its highly possible for one of the tweaks to just stay over and conflict with your new kernel, causing heavy wakelocks. When that happens, your best bet is wiping anyways. So better safe than sorry.
There is nothing wrong. The thing wrong here is that people have misconceptions. DONT CLEAR BATT STATS. It has been confirmed to not change anything. That was old battery tech. After flashing a new rom, i always do 2-3 charge cycles. after a new kernel, drain till empty then charge and use. I may be wrong, but I have never experienced any issues by this method. I regularly get 1% per 1-2 hrs depending on wifi/data on standby. Even 1% per 4hrs in wifi &data off.
You are correct in assuming it doesnt reset till fully cahrged. When fully charged, the <since charged> counter resets, however, any time you plug it in, the <since unplugged> counter resets.
I dont know whether u hav LTE/GSM, but kk6 does wonders for me in GSM. For example yest i was in a factory from 8am-3pm, with no signal time showing 70%. Absolutely no signal inside factory. I mean , like my whole battry bar is red, almost. My Captivate would be dead by 3pm. The nexus still had 72% juice left when i reached home at 3:30pm, that too with 40 mins screen on.
Also, 4.0.3 may have some issues, but thats y we r here, thats y we bought a nexus, to play with the latest and greatest.
THIS
IS
NEXUS.
Click to expand...
Click to collapse
You guys are amazing. Now I'm seeing some life and some hope . One thing I have researched around which is an obvious thing lol that GSM users are getting much better battery life than LTE ones. Obviously I'm on Verizon LTE after I dumped AT&T's garbage 3g and their hspa (whatever they call it). Their LTE is only in limited right now and I'm in Tri-State area. Verizon blows every one away when it comes to speeds . And Nexus was coming to verizon and I was dying to move to Verizon after testing many of their 4g LTE phones at many different locations and stores which just simply blows my wifi speeds away at home .
By kk6 I'm assuming you mean the baseband radio version you flashed which boosted your signal strength. I haven't flashed roms yet on this, will probably for fun. Are all these radios compatible with stock rom or have to flash 4.0.3 first. OH definitely I love Android to death now. I have been using Apple the crap for few years and missing out the freedom to do anything and everything on the phones. I will never ever never ever go back to Apple and their outdated technology, they come with these new features, technology which has been there for years. What pissed me off the most was iphone 4s what a joke with no 4g and same screen when there are gorgeous looking android devices blow their Iphone 5, 6, 7 probably as they live in stone age . OK let me not divert attention to real issue

I want to correct a misconception. I am not suggesting anyone clear battery stats to improve battery life. I read Google+ like the rest of you. I clear the battery stats so I have a 100% clean battery log to start from before I do any testing.

I do the same just for testing purposes though.

Thracks said:
I want to correct a misconception. I am not suggesting anyone clear battery stats to improve battery life. I read Google+ like the rest of you. I clear the battery stats so I have a 100% clean battery log to start from before I do any testing.
Click to expand...
Click to collapse
Yes the thing which does get jacked up sometimes is the charging 'meter' If you so will.so the drop times for battery levels might not be uniform anymore.say it drops like crazy around 60 and very slowly around 10. As I mentioned in my comment earlier that is why I do one or two charge cycles,not to improve battery but to set the meter straight. In the Google+ post it was said that it doesn't improve battery, I agree completely,as I have never found evidence to the contrary. But setting the scale right? I think it does. Anyways without further proof its futile to discuss this point. Let's get back to the point of discussing wakelocks!
Sent from my Galaxy Nexus

vick1377 said:
You guys are amazing. Now I'm seeing some life and some hope . One thing I have researched around which is an obvious thing lol that GSM users are getting much better battery life than LTE ones. Obviously I'm on Verizon LTE after I dumped AT&T's garbage 3g and their hspa (whatever they call it). Their LTE is only in limited right now and I'm in Tri-State area. Verizon blows every one away when it comes to speeds . And Nexus was coming to verizon and I was dying to move to Verizon after testing many of their 4g LTE phones at many different locations and stores which just simply blows my wifi speeds away at home .
Click to expand...
Click to collapse
Yes I so understand the speeds,I have seen my colleagues bionic. However you must understand that the phone Is maintaining 2 connections at once,because lte is a whole different chip. Its bound to take more battery. Beyond minimizing your wakelocks,using an optimized kernel and staying in a lte area or actively managing lte, you can't do much.
By kk6 I'm assuming you mean the baseband radio version you flashed which boosted your signal strength. I haven't flashed roms yet on this, will probably for fun. Are all these radios compatible with stock rom or have to flash 4.0.3 first. OH definitely I love Android to death now. I have been using Apple the crap for few years and missing out the freedom to do anything and everything on the phones. I will never ever never ever go back to Apple and their outdated technology, they come with these new features, technology which has been there for years. What pissed me off the most was iphone 4s what a joke with no 4g and same screen when there are gorgeous looking android devices blow their Iphone 5, 6, 7 probably as they live in stone age . OK let me not divert attention to real issue
Click to expand...
Click to collapse
Yes its a radio. I do not think its Verizon compatible. Think its just for GSM,but I could be wrong. And you don't want to start a discussion about apple right now,trust me.as you can see from my sig, I am a fan boy. A PUREBRED ANDROID fanatic. I see anything small or bricklike, name starting with an 'i' ,I go "HULK SMASH!"
Sent from my Galaxy Nexus

psycho2097 said:
Yes its a radio. I do not think its Verizon compatible. Think its just for GSM,but I could be wrong.
Click to expand...
Click to collapse
You are correct. The basebands starting with XX or UG (or some other region code) are GSM only.
Verizon basebands for the GNex start with a I515 prefix, such as I515.EK04 or I515.EK06. Also IIRC there are two radios for Verizon phones, a CDMA one and an LTE one.

Still couldn't get rid of modem_usb locks and power management locks. I connected via usb data cable to my laptop and usb tethering got enabled (non grayed out) but it was never checked anyways in the first place so I left the way it is everything unchecked. The moment you take the phone of your charger, these locks go up and around 3-15 minutes consuming each about 2-8% or more of cpu. Yesterday it lost around 12-15% in less than an hour. I will test it out today fully and see what I get.
This is what I got in terms of battery consumption yesterday from a single charge and let it drain fully and automatically shut down the phone. And this is on Verizon LTE which obviously does consume more juice especially when used . I had a screen time of about few 2 minutes shy of 3 hours, battery lasted for 11 hours and some 40 minutes, Android OS - 16%, keep awake about 5 hours 15 minutes. I have had gone about 12-16 hours on stock Kernel but little less screen time of about 2 hours or so.
I will test it today before flashing the stock kernel and test that out completely again too.

@Thracks and @psycho2097
The battery stats are cleared every time you charge your phone and then unplug it as stated clearly in the google+ post. There's no need to manually clear it ever.

Well I managed to sort out my Wakelock issues with Autorun Manager. I went into the "Google Services Framework" and switched off my gtalk services. Also switched off a few others.
You can also turn off widgets that you don't use.
PS. Don't blame me if it crashes your phone.
I switched off a number of things and its running fine for me still. Now only have two major Wakelocks, "RILJ" and "MAIL_SERVICE".

jhericurls said:
Well I managed to sort out my Wakelock issues with Autorun Manager. I want into the "Google Services Framework" and switched off my gtalk services. Also switched off a few others.
You can also turn off widgets that you don't use.
PS. Don't blame me if it crashes your phone.
I switched off a number of things and its running fine for me still. Now only have two major Wakelocks, "RILJ" and "MAIL_SERVICE".
Click to expand...
Click to collapse
Were you able to get rid of modem_usb locks and power management locks? If so, how. Downloading autorun manager as I type this message

[Q] S3 Battery Usage

Hi there,
I'm currently trying to maximize my battery life and I ran into something weird.
I've currently have tasker on disabling and enabling data (screen on/off), greenifying, kt747 with under volt and under clock etc.
Under normal usage I can probably get 2-2.5 hours of screen time and a total of 6 hours of usage time at work. I was told this time wasn't great and I couldnt see how I can fix this problem.
Then at home I had my wifi enabled and left my phone sitting idle and noticed it drained a lot slower. I ended up with over 1.5 days of usage and 2-3 hours of on screen time.
The odd thing is...my screen was off most of the time, meaning data was both off. Wifi was on at home, also to note the signal strength was significantly weaker at home and its LTE. Thats why I'm so piuzzled why at home I can get much better battery life
To recap:
At work: (6 hours)
HSPA (not LTE)
Great signal (full bars or over 22 on the real signal app)
screen off during idle data is off
no wifi on
At home (36 hours)
LTE/HSPA (swapping back and forth trying to get a good signal)
Terrible signal 1-2 bars (0-5 on the real signal app)
Screen off and data off
wifi is left on the entire time
My question is what is causing this difference? What am I missing here. How can I get the longer battery life without being on wifi

mikoal said:
Hi there,
I'm currently trying to maximize my battery life and I ran into something weird.
I've currently have tasker on disabling and enabling data (screen on/off), greenifying, kt747 with under volt and under clock etc.
Under normal usage I can probably get 2-2.5 hours of screen time and a total of 6 hours of usage time at work. I was told this time wasn't great and I couldnt see how I can fix this problem.
Then at home I had my wifi enabled and left my phone sitting idle and noticed it drained a lot slower. I ended up with over 1.5 days of usage and 2-3 hours of on screen time.
The odd thing is...my screen was off most of the time, meaning data was both off. Wifi was on at home, also to note the signal strength was significantly weaker at home and its LTE. Thats why I'm so piuzzled why at home I can get much better battery life
To recap:
At work: (6 hours)
HSPA (not LTE)
Great signal (full bars or over 22 on the real signal app)
screen off during idle data is off
no wifi on
At home (36 hours)
LTE/HSPA (swapping back and forth trying to get a good signal)
Terrible signal 1-2 bars (0-5 on the real signal app)
Screen off and data off
wifi is left on the entire time
My question is what is causing this difference? What am I missing here. How can I get the longer battery life without being on wifi
Click to expand...
Click to collapse
Ever looked in BBS (betterbatterystats) to see what was using your battery?
Also, battery life depends on a lot of factors: kernel settings, widgets, refreshes, app running in background, etc.
Running on Wifi is much easier for our device than running on data, which can explain a bit of the difference but not 5x the battery life. UC/UV can be good like it can be bad, if it takes too much time to load something = more screen time = more battery drain.
Btw, you didn't mentioned what ROM/kernel you are running?

BWolf56 said:
Ever looked in BBS (betterbatterystats) to see what was using your battery?
Also, battery life depends on a lot of factors: kernel settings, widgets, refreshes, app running in background, etc.
Click to expand...
Click to collapse
hey bwolf56... oh yea definitely look at my BBS, thats another question i have to resolve since it stays awake quite a bit more than I would like........but I'll go into the BBS portion a bit later.........
To address your questions.....and whats puzzling is that in both the at home and at work scenarios
- bbs are the same
- kernel settings remain the same
- widgets have been the same, refresh have been the same
- no syncs
BWolf56 said:
Running on Wifi is much easier for our device than running on data, which can explain a bit of the difference but not 5x the battery life.
Click to expand...
Click to collapse
I agree that running on wifi is easier....but in both those scenario data is off. At home its wifi, and at work its no data. Shouldn't no data take less power than wifi?
Additionally at home its, LTE, low signal, etc. Which all supposedly drain batteries.
BWolf56 said:
UC/UV can be good like it can be bad, if it takes too much time to load something = more screen time = more battery drain.
Click to expand...
Click to collapse
That is true, my underclock has nearly insignicant increase in load time. Plus I am comapring on screen time with on screen time, not data I've read or information processed/downloaded.
BWolf56 said:
Btw, you didn't mentioned what ROM/kernel you are running?
Click to expand...
Click to collapse
Stock TW JB 4.1.1
Kernel KT747 ktoonsez latest
BWolf56 said:
....... app running in background, etc.
Click to expand...
Click to collapse
hmmm ....app running in background.......I'm not sure......this could be it? Though I try to greenify everything.
I do leave items like smanager, tasker, BBS, GO SMS Pro, and all the chats Facebook, gtalk, whats app etc......
Could it be the attempt of using those apps causes more drain when theres no data vs wifi?
BWolf56 said:
Ever looked in BBS (betterbatterystats) to see what was using your battery?
Click to expand...
Click to collapse
As for BBS.........deep sleep for the processor accounts for majority of the processor state.
Though the "awake" bar on the battery status shows it gets woken up quite a bit.
Both at home and at work here are the BBS data I gathered.
Kernel Wakelock
Powermanagerservice
Deleted_wake_locks
Mmc1_detect
Sec-battery-monitor
Partial Wakelock
Alarm manager
Event log services
Alarms:
Android
Android.intent.action.date_changed
Com.android.server.lightservice.action.update_svc_led
Android.intent.action.time_tick
Com.android.server.wifimanager.action.device_idle
Com.android.server.action.network_stats_poll
Com.android.server.throttlemanager.action.poll
Android.appwidget.action.appwidget_update
Com.Android.internal.policy.impl.phonewindowmanager.delayed_keyguardandroid.app.backup.intent.run
Android.content.syncmanager.sync_alarm
Android.server.wifimanager.action.delayed_driver_stop
There is an additional finding.......... I did a brief test at home without the wifi on.........with screen off.......about 4 hours the battery drain 8%....I want to say its worse without the wifi, but not as bad as I would have had at work with the screen off.......I'm still inconclusive on this point.....
What would make this easier to test is if I had wifi at work. Then I can narrow it down to wifi only......but i dont.
I'm try to investigate as much and I'm stuck.

mikoal said:
hey bwolf56... oh yea definitely look at my BBS, thats another question i have to resolve since it stays awake quite a bit more than I would like........but I'll go into the BBS portion a bit later.........
To address your questions.....and whats puzzling is that in both the at home and at work scenarios
- bbs are the same
- kernel settings remain the same
- widgets have been the same, refresh have been the same
- no syncs
Click to expand...
Click to collapse
Here, I meant more to safe battery in general. Playing with your kernel settings can make a big difference as well as what you have on auto-refresh and widgets.
I agree that running on wifi is easier....but in both those scenario data is off. At home its wifi, and at work its no data. Shouldn't no data take less power than wifi?
Additionally at home its, LTE, low signal, etc. Which all supposedly drain batteries.
Click to expand...
Click to collapse
Your signal strength doesn't matter so much on newer devices (especially on Wifi). Being singal-less will drain your battery but as long as you have signal, it shouldn't affect it (too much).
That is true, my underclock has nearly insignicant increase in load time. Plus I am comapring on screen time with on screen time, not data I've read or information processed/downloaded.
Click to expand...
Click to collapse
A 30min to 1hr screen time difference it basically what data will do. If you compare screen on time, it means your data is on. So there's something else that is hard on your battery while your screen is off at work.
Stock TW JB 4.1.1
Kernel KT747 ktoonsez latest
Click to expand...
Click to collapse
Might wanna look into AOSP or a TW custom ROM if you wanna get the best battery life.
hmmm ....app running in background.......I'm not sure......this could be it? Though I try to greenify everything.
I do leave items like smanager, tasker, BBS, GO SMS Pro, and all the chats Facebook, gtalk, whats app etc......
Could it be the attempt of using those apps causes more drain when theres no data vs wifi?
Click to expand...
Click to collapse
Most of those will use a lot of battery if GPS/location access is on. Data doesn't help of course.
As for BBS.........deep sleep for the processor accounts for majority of the processor state.
Though the "awake" bar on the battery status shows it gets woken up quite a bit.
Both at home and at work here are the BBS data I gathered.
Kernel Wakelock
Powermanagerservice
Deleted_wake_locks
Mmc1_detect
Sec-battery-monitor
Partial Wakelock
Alarm manager
Event log services
Alarms:
Android
Android.intent.action.date_changed
Com.android.server.lightservice.action.update_svc_led
Android.intent.action.time_tick
Com.android.server.wifimanager.action.device_idle
Com.android.server.action.network_stats_poll
Com.android.server.throttlemanager.action.poll
Android.appwidget.action.appwidget_update
Com.Android.internal.policy.impl.phonewindowmanager.delayed_keyguardandroid.app.backup.intent.run
Android.content.syncmanager.sync_alarm
Android.server.wifimanager.action.delayed_driver_stop
Click to expand...
Click to collapse
Kernel wakelocks are the usual;
Partial wakelocks, I dunno what event log services is coming from but if it's low, it shouldn't matter. (if high though, look into it)
Alarms, you have a lot of managers in there. Sure you need all those? lol (Are they coming from 3rd party apps?)
The time and alarms # of the above would be quite useful to know if they're bad or not.
There is an additional finding.......... I did a brief test at home without the wifi on.........with screen off.......about 4 hours the battery drain 8%....I want to say its worse without the wifi, but not as bad as I would have had at work with the screen off.......I'm still inconclusive on this point.....
What would make this easier to test is if I had wifi at work. Then I can narrow it down to wifi only......but i dont.
I'm try to investigate as much and I'm stuck.
Click to expand...
Click to collapse
Ok this last part makes it seem like it's something with your area/carrier. You mentioned that you get LTE at home but only H+ at work, which means that either your work building is in a bad reception area (or simply hard on the signal), or your carriers' towers need update.
Are you able to do some testing outside your building? In the same general area (couple kms near it).

Have you tried to disable LTE while you are at work? You might be getting battery drain while looking for LTE. I could be wrong about this but it would seem logical.
Sent from my SAMSUNG-SGH-I747

BWolf56 said:
Here, I meant more to safe battery in general. Playing with your kernel settings can make a big difference as well as what you have on auto-refresh and widgets.
Click to expand...
Click to collapse
Yea... I think i tried to cut down on all syncs and auto refreshes. Kernel, i've applied the most battery saving one I can find in the team kernelizer's thread. Along with changing my second CPU governor to conservative. I've tested a ton of combination, so far this is the best one I have.....
BWolf56 said:
Your signal strength doesn't matter so much on newer devices (especially on Wifi). Being singal-less will drain your battery but as long as you have signal, it shouldn't affect it (too much).
Click to expand...
Click to collapse
Ive been reading in a lot of threads that LTE supposedly drains more than H+ and other non 4G signals. Either case, it doesnt apply to me.
I also wasnt aware that signal-less was what caused the battery drain. I do know my LTE at home fluctuates from really bad signal and the odd signal-less.
As for Wifi, I wasn't comparing the signal strength of wifi. I was simply compairing that during the off screen state
At home uses wifi
At work uses nothing.
One would think the nothing drains less than wifi?
BWolf56 said:
A 30min to 1hr screen time difference it basically what data will do. If you compare screen on time, it means your data is on. So there's something else that is hard on your battery while your screen is off at work.
Click to expand...
Click to collapse
During screen on time, the draining speed is understandable to see H+ draining faster than wifi.
However during off screen time, you are right, something is draining during at work.......which is a bit of a mystery
BWolf56 said:
Might wanna look into AOSP or a TW custom ROM if you wanna get the best battery life.
Click to expand...
Click to collapse
I tried CM10, AOKP, PA
sort of reverted back to stock. I just like bug and glitch free over the small customizations.
If I can apply my hours that I had from wifi to regular use....i'd be happy........
BWolf56 said:
Most of those will use a lot of battery if GPS/location access is on. Data doesn't help of course.
Click to expand...
Click to collapse
of the 3
- Use wireless network
-Use GPS satellites
-location and google search
I have location and google search checked, simply because I cannot find an action in Tasker to turn that on.
When I use map, it would automatically turn on the other two.
So during screen off when data is off.......do you think this is the culprit?
BWolf56 said:
Kernel wakelocks are the usual;
Partial wakelocks, I dunno what event log services is coming from but if it's low, it shouldn't matter. (if high though, look into it)
Alarms, you have a lot of managers in there. Sure you need all those? lol (Are they coming from 3rd party apps?)
The time and alarms # of the above would be quite useful to know if they're bad or not.
Click to expand...
Click to collapse
ALarm maanger was higher than event log services.......
As for Alarms......I really dont know where they are coming from. I would like to rid them if poissible
Sure thing! Im not too familiar with reading logcats and BBS dumps. I've attached them here. Maybe you can decipher them.
I may do the same over in Chamonix's thread.
BWolf56 said:
Ok this last part makes it seem like it's something with your area/carrier. You mentioned that you get LTE at home but only H+ at work, which means that either your work building is in a bad reception area (or simply hard on the signal), or your carriers' towers need update.
Are you able to do some testing outside your building? In the same general area (couple kms near it).
Click to expand...
Click to collapse
Yea at home its LTE but the signal is so bad i would lose all signal sometimes and sometimes get H+
At work its a constant powerful and strong H+ full bars.

aybarrap1 said:
Have you tried to disable LTE while you are at work? You might be getting battery drain while looking for LTE. I could be wrong about this but it would seem logical.
Sent from my SAMSUNG-SGH-I747
Click to expand...
Click to collapse
i can give this a try and test it out.
I assumed that since Im getting full H+ that they wont look for LTE......

mikoal said:
Yea... I think i tried to cut down on all syncs and auto refreshes. Kernel, i've applied the most battery saving one I can find in the team kernelizer's thread. Along with changing my second CPU governor to conservative. I've tested a ton of combination, so far this is the best one I have.....
Click to expand...
Click to collapse
Your cpu_0 governor being.. Ktoonservative? And what about your scheduler? I personally get great results with row (noop screen off).
Ive been reading in a lot of threads that LTE supposedly drains more than H+ and other non 4G signals. Either case, it doesnt apply to me.
I also wasnt aware that signal-less was what caused the battery drain. I do know my LTE at home fluctuates from really bad signal and the odd signal-less.
As for Wifi, I wasn't comparing the signal strength of wifi. I was simply compairing that during the off screen state
At home uses wifi
At work uses nothing.
One would think the nothing drains less than wifi?
Click to expand...
Click to collapse
It isn't actually ''nothing''. It still has to communicate with the towers, if it only sends H+, it might be because it's having trouble (or that area doesn't have LTE just yet). That being said, your device might be perma looking for LTE and can't get it = causing battery drain.
During screen on time, the draining speed is understandable to see H+ draining faster than wifi.
However during off screen time, you are right, something is draining during at work.......which is a bit of a mystery
Click to expand...
Click to collapse
Answer *might* be just above.
I tried CM10, AOKP, PA
sort of reverted back to stock. I just like bug and glitch free over the small customizations.
If I can apply my hours that I had from wifi to regular use....i'd be happy........
Click to expand...
Click to collapse
Might wanna look into a custom TW ROM that is stable then. Intergalactic, Rootbox and couple others are quite popular around here.
of the 3
- Use wireless network
-Use GPS satellites
-location and google search
I have location and google search checked, simply because I cannot find an action in Tasker to turn that on.
When I use map, it would automatically turn on the other two.
So during screen off when data is off.......do you think this is the culprit?
Click to expand...
Click to collapse
It definitely doesn't help. location access is a big battery drainer for sure. Might wanna look into manually turning it on when you need it.
ALarm maanger was higher than event log services.......
As for Alarms......I really dont know where they are coming from. I would like to rid them if poissible
Sure thing! Im not too familiar with reading logcats and BBS dumps. I've attached them here. Maybe you can decipher them.
I may do the same over in Chamonix's thread.
Click to expand...
Click to collapse
At work atm, can't take a look at them. Perhaps someone else can help you in the meantime for those.
Yea at home its LTE but the signal is so bad i would lose all signal sometimes and sometimes get H+
At work its a constant powerful and strong H+ full bars.
Click to expand...
Click to collapse
Like I mentioned above, powerful H+ doesn't mean it's good on your battery if it perma looking for LTE (this is a guess btw). Like it was mentioned, turning your LTE off while at work would help a lot if it's the case.

BWolf56 said:
Your cpu_0 governor being.. Ktoonservative? And what about your scheduler? I personally get great results with row (noop screen off).
Click to expand...
Click to collapse
CPU0 Ktoonservative with scheduler NOOP (on and off screen)
CPU1 Conservative instead of ondemand to further conserve power
UV like 100mv across the board.
UC to 1350
BWolf56 said:
It isn't actually ''nothing''. It still has to communicate with the towers, if it only sends H+, it might be because it's having trouble (or that area doesn't have LTE just yet). That being said, your device might be perma looking for LTE and can't get it = causing battery drain.
Click to expand...
Click to collapse
This could be a possibilty......and with Wifi on, it stops it from looking.
I can disable LTE, however that would mean disabling 2G as well......I looked into the disabling methods and I would like to keep my automatic setting but just without LTE........
I can test WCDMA only for a day or two to see if theres any improvements.
BWolf56 said:
Answer *might* be just above.
Click to expand...
Click to collapse
Isn't that sort of weird that with data OFF, that it still searches for LTE? Doesnt that defeat the purpose of having the data being off?
BWolf56 said:
Might wanna look into a custom TW ROM that is stable then. Intergalactic, Rootbox and couple others are quite popular around here.
Click to expand...
Click to collapse
I heard slim bean or sometihng laong the lines of that was good..... I may switch once I can iron the battery settings out.
BWolf56 said:
It definitely doesn't help. location access is a big battery drainer for sure. Might wanna look into manually turning it on when you need it.
Click to expand...
Click to collapse
I'll add this to the list of trying things. LTE and this.
THough i always had this off and from what i remember my bat life was around the same as before.
BWolf56 said:
At work atm, can't take a look at them. Perhaps someone else can help you in the meantime for those.
Click to expand...
Click to collapse
Ill try posting on chamonix's thread . thanks though!
BWolf56 said:
Like I mentioned above, powerful H+ doesn't mean it's good on your battery if it perma looking for LTE (this is a guess btw). Like it was mentioned, turning your LTE off while at work would help a lot if it's the case.
Click to expand...
Click to collapse
I'll test this and get back to you later.

mikoal said:
Isn't that sort of weird that with data OFF, that it still searches for LTE? Doesnt that defeat the purpose of having the data being off?
Click to expand...
Click to collapse
I think LTE is more than data, it's the signal.
I heard slim bean or sometihng laong the lines of that was good..... I may switch once I can iron the battery settings out.
Click to expand...
Click to collapse
Custom ROMs definitely have better battery life than stock, whether it's on TW or AOSP.
I'll add this to the list of trying things. LTE and this.
THough i always had this off and from what i remember my bat life was around the same as before.
Click to expand...
Click to collapse
Worth trying
I'll test this and get back to you later.
Click to expand...
Click to collapse
Aight, I'll wait to hear back from ya.

mikoal said:
I can disable LTE, however that would mean disabling 2G as well......I looked into the disabling methods and I would like to keep my automatic setting but just without LTE........
I can test WCDMA only for a day or two to see if theres any improvements.
Click to expand...
Click to collapse
Assuming you are on an AT&T device running stock TW, you can disable LTE only. However it is only good until you reboot or switch in and out of airplane mode (it reverts to looking for LTE). Create a new APN with name and APN name only filled out and save. Select it. Wait 20 seconds and go into dialer and dial *#*#4636#*#* and select "Device information". It should say "WCDMA preferred" under preferred network type. You need to change it to GSM/CDMA auto (PRL). Exit and go back to your APN and select the one for LTE. After a couple seconds you will have data back and it can switch automatically between 2G and 3G.

aybarrap1 said:
Assuming you are on an AT&T device running stock TW, you can disable LTE only. However it is only good until you reboot or switch in and out of airplane mode (it reverts to looking for LTE). Create a new APN with name and APN name only filled out and save. Select it. Wait 20 seconds and go into dialer and dial *#*#4636#*#* and select "Device information". It should say "WCDMA preferred" under preferred network type. You need to change it to GSM/CDMA auto (PRL). Exit and go back to your APN and select the one for LTE. After a couple seconds you will have data back and it can switch automatically between 2G and 3G.
Click to expand...
Click to collapse
thanks but i got rogers and that dial code didnt work....

BWolf56 said:
I think LTE is more than data, it's the signal.
Custom ROMs definitely have better battery life than stock, whether it's on TW or AOSP.
Worth trying
Aight, I'll wait to hear back from ya.
Click to expand...
Click to collapse
So yesterday i left it idle with 8 hours and it drained .6%/hour, i lost 5% in 8 hours
I woke up turned off wifi and in 3 hours I lost 2% which is about .7%/hour.
I'll give it a try at work.....
the only change i made was wifi off.
The location is still on
I have a new radio firmware i want to try as well, but that will have to wait.
Attached are my BBS logs, seems like theres lots of wakeups
EDIT: i have battery spy, during idle it drains at .5%/hour, but when i wake it up then make it go to sleep, it hovers at 8% then 3 % for a while. Why is that? How can I make it drop to .5% immediately?

Apps keep shutting down and battery drain

Hello,
I have a S4 mini i9192 on CM13. For the last couple of days my phone has been shutting down apps constantly, this includes games, messenger apps, and nova launcher. Additionally, the battery has been draining automatically, when it's not charging. I would prefer not do clean restore as it's time consuming, but if I must, I shall. Does anyone have any other options?

Assuming you haven't done anything like flashing recently that has caused your problems, wiping system/dalvik/cache might fix it. Have you made any changes to privacy guard recently? Which apps are draining your battery?

IronRoo said:
Assuming you haven't done anything like flashing recently that has caused your problems, wiping system/dalvik/cache might fix it. Have you made any changes to privacy guard recently? Which apps are draining your battery?
Click to expand...
Click to collapse
I put a custom rom (CM13) on my phone for the first time last month. Every was good for the last month, , better than avg battery life, etc. Thank you for your suggestion. I shall wipe the cache and get back to you. Nope, no changes. Battery drain is caused by "Cell Standby". It seems like my data keeps on connecting and disconnecting while I'm asleep.
Edit: Apps still crash after clearing the dalvik cache. This is super frustrating. Do you think doing a clean restore will fix the problem?

vcostalot said:
I put a custom rom (CM13) on my phone for the first time last month. Every was good for the last month, , better than avg battery life, etc. Thank you for your suggestion. I shall wipe the cache and get back to you. Nope, no changes. Battery drain is caused by "Cell Standby". It seems like my data keeps on connecting and disconnecting while I'm asleep.
Edit: Apps still crash after clearing the dalvik cache. This is super frustrating. Do you think doing a clean restore will fix the problem?
Click to expand...
Click to collapse
Something is not right as you should be getting better battery life etc. it's hard to say exactly what your problem is with so little info to go on. Doing a clean install might fix it but it might not depending on your issue, if it's a dodgy app you'll probably just reinstall and problem will be back. Looking at app data usage may give you a clue if an app keeps waking and sending data while you are asleep. However it's not clear to me if by high battery use you are just saying "cell standby" is top of your list in the morning or your battery doesn't last as long with your normal usage. The former is normal as at night it's the only thing working so it will show a higher % depending on when usage stats were reset but it's not really using excess power.
Are you in a weak signal area? Your phone will use more power when in a low signal strength area as it spends more time searching for a strong signal and more power to transmit ("look at battery>use since last charge" under graph to see how much green/yellow/red your "mobile network signal" shows). Also what is your current modem? On my i9195 we are up to CPB2 modem (baseband) released last month, updating to a new modem for your i9192 might help. This looks like your phones modem thread (though don't appear to be particularly new modems as newest is the Indian one CNL1 but I don't know for certain on your phone......... might not have had as many changes)
http://forum.xda-developers.com/showthread.php?t=2768593
You need to select the one that matches your country i.e. the first two letters after the model number and then the latest version for your country eg CO12
[though I have read any other countries modem that has the same network parameters (use the same wavelengths for 4G, 3G etc) will work, but I never tried!]
Backup your IMEI settings! (use an app from play store)

IronRoo said:
Something is not right as you should be getting better battery life etc. it's hard to say exactly what your problem is with so little info to go on. Doing a clean install might fix it but it might not depending on your issue, if it's a dodgy app you'll probably just reinstall and problem will be back. Looking at app data usage may give you a clue if an app keeps waking and sending data while you are asleep. However it's not clear to me if by high battery use you are just saying "cell standby" is top of your list in the morning or your battery doesn't last as long with your normal usage. The former is normal as at night it's the only thing working so it will show a higher % depending on when usage stats were reset but it's not really using excess power.
Are you in a weak signal area? Your phone will use more power when in a low signal strength area as it spends more time searching for a strong signal and more power to transmit ("look at battery>use since last charge" under graph to see how much green/yellow/red your "mobile network signal" shows). Also what is your current modem? On my i9195 we are up to CPB2 modem (baseband) released last month, updating to a new modem for your i9192 might help. This looks like your phones modem thread (though don't appear to be particularly new modems as newest is the Indian one CNL1 but I don't know for certain on your phone......... might not have had as many changes)
http://forum.xda-developers.com/showthread.php?t=2768593
You need to select the one that matches your country i.e. the first two letters after the model number and then the latest version for your country eg CO12
[though I have read any other countries modem that has the same network parameters (use the same wavelengths for 4G, 3G etc) will work, but I never tried!]
Backup your IMEI settings! (use an app from play store)
Click to expand...
Click to collapse
Thank you again. I greatly appreciate your help. I'm on the latest modem version already. I don't go to many different places and my signal is usually good as I'm in the city, so the signal situation is odd. It was fine before and now it's messed up. I did a factory reset today, hopefully that works everything out. :good: