Develop Bugs

Kernel wakelock mdm_hsic_pm0?

I am seeing a lot of kernel wakelocks from this in BBS, but can't find anything about it online. Does anyone know what it is?

First time I see it today, so I searched and I see you have the same problem.
Today is the first day I've been on 3G (no LTE in my area) all day, with WiFi disconnected, and BetterBatteryStats shows FastDormancy and mdm_hsic_pm0
Causally related? I am fairly sure FastDormancy is causally related to the 3g stuff, but not sure about mdm_hsic_pm0 - it's possible?
I'm on the i317M, though, so maybe that could help us troubleshoot.

Yes, I have indeed seen other reports of mdm and FastDormancy occurring simultaneously, but I don't have FastDormancy at all.
I have been unable to find any info on mdm since this post. There are a couple threads like this on other forums, so far none with answers though. It appears it is occurring with the GS3, as well.
If anyone else has any info, it would be much appreciated....

intelli78 said:
I am seeing a lot of kernel wakelocks from this in BBS, but can't find anything about it online. Does anyone know what it is?
Click to expand...
Click to collapse
I am getting the same thing which is driving me nuts. I loose more battery overnight while sleeping then during the day when I sporadically use my device due to this.

Anyone?

i'm having this wakelock as well. can't find any information on it...anyone else?

People are saying in another thread that it's the "l2 hsic" for jellybean and it has to do with charging. One possible solution is to wake phone and go to home screen before unplugging charger. Also pulling battery for a couple minutes may help.
Sent from my SPH-L900

s4pat said:
People are saying in another thread that it's the "l2 hsic" for jellybean and it has to do with charging. One possible solution is to wake phone and go to home screen before unplugging charger. Also pulling battery for a couple minutes may help.
Sent from my SPH-L900
Click to expand...
Click to collapse
Thanks for the info. Can you link to that thread?

intelli78 said:
Thanks for the info. Can you link to that thread?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1957906
i still have this wakelock and cant figure out what is causing it...

I Disabled Fast Dormancy and that wake lock disappeared.
I'm not sure if we can get rid of the mdm_hsic_pm0 one.
Yossarian33 said:
First time I see it today, so I searched and I see you have the same problem.
Today is the first day I've been on 3G (no LTE in my area) all day, with WiFi disconnected, and BetterBatteryStats shows FastDormancy and mdm_hsic_pm0
Causally related? I am fairly sure FastDormancy is causally related to the 3g stuff, but not sure about mdm_hsic_pm0 - it's possible?
I'm on the i317M, though, so maybe that could help us troubleshoot.
Click to expand...
Click to collapse

Bump, any updates on this?

Double Bump!

Like a camel!
sent from my ginormous Note II

Finally, humanity is defeated by software bug

Just a hunch, this might have something to do with location or GPS. My wakelock with this doubled with GPS on for the day. While I had roughly the same amount of wakelocks from the Google maps location updaters.
sent from my ginormous Note II

any update on this? Recently happend to me and i went from 38 hours battery life to 18. Now granted yes thats still good. Nonetheless i want this to stop.

I am getting this same wakelock and it's seriously getting on my nerves. My phone rarely ever gets to enter deep sleep because of this. Is this related to certain ROMs or is it effecting all note IIs?
Sent from my SPH-L900 using xda app-developers app

Hey guys I'm from the Verizon Note 2. I actually made a search on Google this morning and it led me hear. I recently noticed a decrease in my battery life and seem to have the same problem as you guys, mine only caused about 35mins of wake time yesterday but if we could remove it the better for all of us.
There's also stuff I'm not really aware of if I can freeze or trash it all together. I'm new to this battery stats app. I added other pictures of possible stuff killing my battery, it seemed ebay mobile was a contender as well so i trashed it lol. I'm also on a custom ROM.
Sent from my SCH-I605 using xda premium

Probably the single.best thing you can do for your battery is to get. Google maps to stop reporting your location all day.
Go into the settings of Maps and disable reporting, unless you need it for something of course.
sent from my ginormous Note II

MeetFace said:
Probably the single.best thing you can do for your battery is to get. Google maps to stop reporting your location all day.
Go into the settings of Maps and disable reporting, unless you need it for something of course.
sent from my ginormous Note II
Click to expand...
Click to collapse
Which as far as I can tell has nothing to do with this specific wakelock, which sometimes causes my phone to never go into deep sleep.
Yes, maps is obnoxious and causes plenty of its own wakelocks, but if mdm_hsic_pm0 is keeping my phone awake 100% of the time it's pretty irrelevant.

[Q] Short battery life but nothing specific seems to be a big drainer

Hi guys,
Though I have been reading these threads for quite some time now, I just joined so that I can post the issue that I am facing.
I am rooted and using Liquidsmooth v2.4
I am facing a battery issue. Battery life is short. I never survived more than 2 hours of screen time on my device which I know from these forums that is not normal.
The stuff I have tried but didn't help:
Wiped and factory reset on several occasions, both using the settings function and CWM
Flashed various roms (Cyanogen Mod, Carbon, Liquidsmooth, Stock rom)
Unroot to stock and root again
Changed to various more battery friendly CPU governors
Changed battery with a friend who is using the international version (which is using the same battery according to the Samsung website)
I am not in the states now and the local Samsung service centre refused to service it because they don't have the appropriate parts and also due to the difference in software. (I unrooted it and restored to stock before sending in.) They just looked at the model number and refused service; didn't do anything more.
I have attached some screenshots. There are no obvious wakelock issues and no app in particular is draining the battery. 50% power used on screen appears to be normal. The rest of the apps also look like they are behaving themselves, at least power consumption wise. I am not a very heavy user and don't run any games/apps that are huge in resource requirements. Email/facebook/browsing are my main activities.
The current settings on my phone:
Auto brightness
Wifi/bluetooth/GPS all off
Autosync is off by default but will use it sparingly if I need to.
Almost all of my apps have their notifications off and all apps are set to sync manually.
I only have one calender widget on my home screen, no others elsewhere.
CPU Governor is "ondemand", iO scheduler is "row". Min/max freqency: 384/1512 MHz
Juicedefender is enabled with "aggressive" (I know its effectiveness is controversial but on my device, disabling it eats more battery)
Any help is appreciated. "Thanks" will be awarded to all who post!
Thank you!

Hairy07 said:
Hi guys,
Though I have been reading these threads for quite some time now, I just joined so that I can post the issue that I am facing.
I am rooted and using Liquidsmooth v2.4
I am facing a battery issue. Battery life is short. I never survived more than 2 hours of screen time on my device which I know from these forums that is not normal.
The stuff I have tried but didn't help:
Wiped and factory reset on several occasions, both using the settings function and CWM
Flashed various roms (Cyanogen Mod, Carbon, Liquidsmooth, Stock rom)
Unroot to stock and root again
Changed to various more battery friendly CPU governors
Changed battery with a friend who is using the international version (which is using the same battery according to the Samsung website)
I am not in the states now and the local Samsung service centre refused to service it because they don't have the appropriate parts and also due to the difference in software. (I unrooted it and restored to stock before sending in.) They just looked at the model number and refused service; didn't do anything more.
I have attached some screenshots. There are no obvious wakelock issues and no app in particular is draining the battery. 50% power used on screen appears to be normal. The rest of the apps also look like they are behaving themselves, at least power consumption wise. I am not a very heavy user and don't run any games/apps that are huge in resource requirements. Email/facebook/browsing are my main activities.
The current settings on my phone:
Auto brightness
Wifi/bluetooth/GPS all off
Autosync is off by default but will use it sparingly if I need to.
Almost all of my apps have their notifications off and all apps are set to sync manually.
I only have one calender widget on my home screen, no others elsewhere.
CPU Governor is "ondemand", iO scheduler is "row". Min/max freqency: 384/1512 MHz
Juicedefender is enabled with "aggressive" (I know its effectiveness is controversial but on my device, disabling it eats more battery)
Any help is appreciated. "Thanks" will be awarded to all who post!
Thank you!
Click to expand...
Click to collapse
I see horrendous wakelocking. Install BetterBatteryStats. Charge it up for a bit, reboot the phone, then let it idle for a couple hours. Then post screenshots of everything.
It might be the worst I've ever seen. Good news is it's probably not a hardware issue.

It also looks like half the time you had a poor signal. Data transfer on a poor signal can wat at your battery too.
Always use wifi when available.
Sent from my SGH-T999 using xda premium

thanks folks. I've installed better battery stats and will update shots accordingly at the end of the day or end of the battery cycle(probably won't last a day)
Really appreciate the help.

Here are the shots for today.
I rethinked about the poor reception comment and wondered if any of my radios are malfunctioning or if my radios can work in the frequency bands here in Singapore. I called my local service provider to ask about the frequency bands and.it appears that my device's radios can recieve the GSM bands here although they suspect 3G may be an issue. Nothing concrete but I do hope to find out if that could be a possible reason for my battery drain.
I managed to squeeze past 2 hrs of screen time today by using as much wifi as I possibly can. This improvement in battery life probably means that data reception can really be an issue. It's not unlikely that both my home and workplace suffers from.bad reception but i do have a Q. If poor reception is an.issue, will the battery consumption by cell radio sky rocket?

For some reason the previous battery stats screenshots was only for about 5 hrs. i have refreshed and have uploaded the refreshed screenshots

Hairy07 said:
Here are the shots for today.
I rethinked about the poor reception comment and wondered if any of my radios are malfunctioning or if my radios can work in the frequency bands here in Singapore. I called my local service provider to ask about the frequency bands and.it appears that my device's radios can recieve the GSM bands here although they suspect 3G may be an issue. Nothing concrete but I do hope to find out if that could be a possible reason for my battery drain.
I managed to squeeze past 2 hrs of screen time today by using as much wifi as I possibly can. This improvement in battery life probably means that data reception can really be an issue. It's not unlikely that both my home and workplace suffers from.bad reception but i do have a Q. If poor reception is an.issue, will the battery consumption by cell radio sky rocket?
Click to expand...
Click to collapse
This is not BetterBatteryStats. We already know your battery life blows. I want to know why, and BBS will tell me. I can't do a thing for you until you show me that. I think there is a free version on the forums, but it's cheap in the Play Store, and worth it. Get Greenify, too. You're going to need it. Greenify will prevent notifications from showing up for greenified apps. If you don't need notifications from Facebook (honestly, who does?), Greenify it. Maps, too. And disable Juice Defender for now, so I can see what is really happening.
Poor cell reception, if not on wifi, causes drain, yes. It seems to only get really bad when the phone can't hold a data connection.

Try turning off GPS. Also under Settings > Backup and Reset, turn off the Back Up My Data option.
Additionally, check the stickies in this forum. Woody has a fantastic Battery Thread that you should read if you haven't already.
Sent from my SGH-T999 using xda premium

Type betterbatterystats xda on Google. It'll link you to the official thread where you can install the free apk file.
Sent from my SGH-T999 using xda app-developers app

Thanks everyone! I sheepishly searched better battery stats on Google play and.simply installed the first that popped up without looking closely. My bad. I've purchased the app and will post up screenshots soon. I didn't manage to grab the shots today as my batt went flat before I could. Should have kept a better eye.
Will certainly post up screen shots tomorrow.
PS: My GPS has been offed by default. Will disabling Google backup services help?

Hairy07 said:
Thanks everyone! I sheepishly searched better battery stats on Google play and.simply installed the first that popped up without looking closely. My bad. I've purchased the app and will post up screenshots soon. I didn't manage to grab the shots today as my batt went flat before I could. Should have kept a better eye.
Will certainly post up screen shots tomorrow.
PS: My GPS has been offed by default. Will disabling Google backup services help?
Click to expand...
Click to collapse
It cant hurt your battery life! Theres a number of things you can do for settings. Read woodys thread stickied here as its pretty much all there. One of the big batt drainers can be auto brightness btw.
Sent from my SGH-T999 using xda premium

Once you get a good cycle run with BBS, the screen shots we want to see are Since Unplugged/Process and Since Unplugged/Partial Wakelocks. Those two will help tell what is eating your battery and also what is causing all those wakelocks in your original screen shots.
If you are using Juice Defender, that will contribute to the wakelocks (but doesn't keep your device from entering Deep Sleep, so no worries there). I use it, but I have mine set up custom plus have done some basic build.prop edits regarding the RILs and wifi_supplicant_intervals.
My suspicion is that there is a rogue app that is transmitting data somewhere and that is not letting you sleep. If it is transmitting in a poor reception area then that puts ever more strain of things. You are not the first and wont be the last but Doc, Aero and I can help you figure it out.

Images for today. I've included a few more shots for the items that appear lower in the lists.
I've installed greenify but did not add any apps while collecting these data. Juicedefender is also disabled. My screen time was less than 2 hrs.
I did some of the stuff listed in Woody's informative thread. Deleting the tombstone files, lost&found files etc.
Thanks for everyone's help. Hope to solve this issue soon.

Get Greenify from the play store.
Greenify:
Maps
Facebook
Google Now
Take more pictures with BetterBatteryStats tomorrow.
Looks like Maps is misbehaving. Terrible coding is terrible.

Yup. Looks like you are broadcasting your location all over the place. Do you use Maps? If not close it and Greenify it.
Are you getting notifications from Facebook or have a "Check-in" thing going on?
Google Now>Settings> turn off what you don't use.
Settings>Location> Off.
Edit: Tombstones and Lost.dir files are just memory management and have nothing to do with battery.

Shots for today. Things are a little better but looking at my screen usage, maybe there's still a lot of room for improvement.
I've greenified just about all apps that may run in the background. Facebook, Maps, Google+, Gmail, Chrome, Google Search (I converted it into user app), dropbox, etc. Whatsapp, Viber and Wechat are spared as I needed them to be able to notify incoming messages. Juicedefender is on, with advanced settings - set to sync only once an hour. Maps have been set not to update my location although I didn't go to the extent of denying location access ( I use maps fairly often).
All these are rather aggressive steps and I do see improvement. What else can be done? Other than my messengers, all my notifications are essentially off.
Once again, thank you everyone for your time and effort.

Please stop using Juice Defender. I want to see what your battery life looks like without it now. And it's also responsible for the majority of your wakelocks. And if you could get us some ~4 hour idle BBS stats (during sleepy time), that would be fantastic.

Aerowinder said:
Please stop using Juice Defender. I want to see what your battery life looks like without it now. And it's also responsible for the majority of your wakelocks. And if you could get us some ~4 hour idle BBS stats (during sleepy time), that would be fantastic.
Click to expand...
Click to collapse
Noted. I'll charge my phone up and take some shots in the morning. Juicedefender will be disabled and hopefully more information will be revealed. Do today's shots show any improvement?

Hairy07 said:
Noted. I'll charge my phone up and take some shots in the morning. Juicedefender will be disabled and hopefully more information will be revealed. Do today's shots show any improvement?
Click to expand...
Click to collapse
I think you are heading in the right direction (8% deep sleep improvement). For this next test, please disable Juice Defender (don't turn it off through the app, but disable it in the app manager to make sure it can't run). Also, I'm hoping to get a test where the screen isn't on for more than a couple seconds, so I can get an accurate reading on the usage per hour.
I suspect the rest of your issues (bam_dmux_wakelock), are due to a bad cell connection for a good chunk of the time. Connecting to a wifi network will solve that. If you don't have a wifi network, you can turn on airplane mode, or set up some Tasker profiles to help with that.

Out of curiosity, how bright do you have your screen set? Obviously its a big drainer, but it seems like every time your screen is on the batt level plummets.
Sent from my SGH-T999L using xda premium

[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?

Battery drain

i am new on note2 using custom rom 4.1.2 i feel last night my battery drain at least 13% whole night on standby.my early s3 take only 1% on standby whole night.

relisys667 said:
i am new on note2 using custom rom 4.1.2 i feel last night my battery drain at least 13% whole night on standby.my early s3 take only 1% on standby whole night.
Click to expand...
Click to collapse
S3 only 1%? Wow that's awesome.. WiFi and Data On?
Sent from my GT-N7100 using xda premium

relisys667 said:
i am new on note2 using custom rom 4.1.2 i feel last night my battery drain at least 13% whole night on standby.my early s3 take only 1% on standby whole night.
Click to expand...
Click to collapse
13% is ODD. Something is sucking up your battery.
Expand your Android system and post the Screenshot - want to look at cpu wake time.
What is your setting under - Advanced Wifi options - while asleep - wifi on or off ?

SAJdroid said:
13% is ODD. Something is sucking up your battery.
Expand your Android system and post the Screenshot - want to look at cpu wake time.
What is your setting under - Advanced Wifi options - while asleep - wifi on or off ?
Click to expand...
Click to collapse
now i set wifi sleep to never and watch this night
thnx for replying

SAJdroid said:
13% is ODD. Something is sucking up your battery.
Expand your Android system and post the Screenshot - want to look at cpu wake time.
What is your setting under - Advanced Wifi options - while asleep - wifi on or off ?
Click to expand...
Click to collapse
To be honest I have done so many tweaks to help with wakelocks. It is definately not an app but the standby time is sooo much worse on my Note in comparision to my HTC One S. I'll get about a day regardless of screen time. On my One S I'll get 2 days with the same screen time and with the same apps.
The only thing I can think of it being is that mdm_hsic kernel wakelock. Have no clue what to do about that though, and it's clearly a Samsung/Note 2 bug given that the HTC doesn't have this sucking away the standby time.
Sent from my Galaxy Note II LTE using Tapatalk

Do you have ebay app installed?
Try uninstalling and see if this makes a difference. The ebay process/service constantly runs in background even tho its disabled in app settings and doesn't show battery usage.
I had same problem and found that its to blame!

unFKNreal said:
Do you have ebay app installed?
Try uninstalling and see if this makes a difference. The ebay process/service constantly runs in background even tho its disabled in app settings and doesn't show battery usage.
I had same problem and found that its to blame!
Click to expand...
Click to collapse
The thing is, I also have the ebay app on my HTC and it doesn't suffer from this problem. The HTC is 4.1.1 though so I'm guessing this is either a Samsung problem or a 4.1.2 problem.
Sent from my Galaxy Note II LTE using Tapatalk

relisys667 said:
i am new on note2 using custom rom 4.1.2 i feel last night my battery drain at least 13% whole night on standby.my early s3 take only 1% on standby whole night.
Click to expand...
Click to collapse
hi,just a few pointers to think about ....?
i am on stock 4.1.2 not rooted ,and my avarage battery drain overnight (10/11 hrs +) is 2%..or ..3 %.
i also have a note8.0 and battery drain is normally 1% in standby mode overnight (10/11 hrs )also on 4.1.2
lucky ? no i don't think so .
(maybe i got my all "tweaks " right..no ?)
just a few pointers (things to think about, why others get better results and others not,in this case on 4.1.2 )
good luck

unFKNreal said:
Do you have ebay app installed?
Try uninstalling and see if this makes a difference. The ebay process/service constantly runs in background even tho its disabled in app settings and doesn't show battery usage.
I had same problem and found that its to blame!
Click to expand...
Click to collapse
no dear brother i have not installed any ebay app

relisys667 said:
no dear brother i have not installed any ebay app
Click to expand...
Click to collapse
Do you have any Battery manager apps installed? I had one that constantly pulled WiFi status and since I have WiFi disabled when outside of home or work it kept on turning it on/off and drained my battery. It was my error for configuring it wrongly, I admit but still, that may happen without control.
Check Wakelock Detector, click on this:
Awake.............................Statistics since..............................Deep sleep
bar after night of rest and post statistics that you find there, The most interesting is a difference between Screen-on and awake times. If your phone is awake much longer than it has it's screen on then there are some processes that keep it awake and drain battery.

mat9v said:
Do you have any Battery manager apps installed? I had one that constantly pulled WiFi status and since I have WiFi disabled when outside of home or work it kept on turning it on/off and drained my battery. It was my error for configuring it wrongly, I admit but still, that may happen without control.
Check Wakelock Detector, click on this:
Awake.............................Statistics since..............................Deep sleep
bar after night of rest and post statistics that you find there, The most interesting is a difference between Screen-on and awake times. If your phone is awake much longer than it has it's screen on then there are some processes that keep it awake and drain battery.
Click to expand...
Click to collapse
Last night I disable wifi and battery takes 3% whole night I think wifi eat battery

relisys667 said:
Last night I disable wifi and battery takes 3% whole night I think wifi eat battery
Click to expand...
Click to collapse
WiFi by itself will not eat battery, something has to use it to create this drain. How do you have your wifi configured?
Check in Settings>WiFi>Advanced>Keep WiFi on during sleep>???
I have that set to Never

mat9v said:
WiFi by itself will not eat battery, something has to use it to create this drain. How do you have your wifi configured?
Check in Settings>WiFi>Advanced>Keep WiFi on during sleep>???
I have that set to Never
Click to expand...
Click to collapse
Wifi does seem to be messed up on this phone. I find, on standby, it causes more drain than 3G does. Usually something like 10% - 15% overnight.
This is not right and something is seriously a miss with Samsung. My HTC running the exact same apps does not have this problem. You shouldn't have to turn wifi off as opposed to 3G to get better battery life.
Sent from my Galaxy Note II LTE using Tapatalk

fade2black101 said:
Wifi does seem to be messed up on this phone. I find, on standby, it causes more drain than 3G does. Usually something like 10% - 15% overnight.
This is not right and something is seriously a miss with Samsung. My HTC running the exact same apps does not have this problem. You shouldn't have to turn wifi off as opposed to 3G to get better battery life.
Sent from my Galaxy Note II LTE using Tapatalk
Click to expand...
Click to collapse
Are you thinking about some hardware problem that causes wifi to use more memory than usual? Like higher voltage or something? Because that is not very probable. I think there is some app there that is using wifi, high power usage happens when wifi is performing scans is being turned on or actively transmiting data. Please use wakelog detector to find what app is causing kernel wakelocks and from there we can find a real culprit.
I does not have to be malicious but may be an incompatibility between hardware and some software, one that works well on HTC and not on this Samsung model.

mat9v said:
Are you thinking about some hardware problem that causes wifi to use more memory than usual? Like higher voltage or something? Because that is not very probable. I think there is some app there that is using wifi, high power usage happens when wifi is performing scans is being turned on or actively transmiting data. Please use wakelog detector to find what app is causing kernel wakelocks and from there we can find a real culprit.
I does not have to be malicious but may be an incompatibility between hardware and some software, one that works well on HTC and not on this Samsung model.
Click to expand...
Click to collapse
No I don't think it's hardware.
I also don't think it is an app given what I have observed with wakelocks and deep sleep. I have made many adjustments to the phone and I'm clued up with wakelocks and the like and this doesn't seem to be a wakelock issue.
I have even assigned a static ip and made tweaks within my router but it hasn't helped. There seems to be a strange way this phone handles wifi and it is causing unnecessary drain.
In regards to Kernel wakelocks, it would appear something called mdm_hsic is causing lots of wakeups and more standby drain than it should be and this does not feature at all on my HTC. This is not related to wifi, but I'm pinning the general crappy standy drain im getting on this but there doesn't seem to be a way to get rid of it.
Sent from my Galaxy Note II LTE using Tapatalk

Id download ds battery saver from the playstore and set it to agressive itll turn off wifi and data whenever screen is locked and turn it back on upon unlock. Its awesome on my sgs4
Sent from my SAMSUNG-SGH-I337 using xda premium

fade2black101 said:
No I don't think it's hardware.
I also don't think it is an app given what I have observed with wakelocks and deep sleep. I have made many adjustments to the phone and I'm clued up with wakelocks and the like and this doesn't seem to be a wakelock issue.
I have even assigned a static ip and made tweaks within my router but it hasn't helped. There seems to be a strange way this phone handles wifi and it is causing unnecessary drain.
In regards to Kernel wakelocks, it would appear something called mdm_hsic is causing lots of wakeups and more standby drain than it should be and this does not feature at all on my HTC. This is not related to wifi, but I'm pinning the general crappy standy drain im getting on this but there doesn't seem to be a way to get rid of it.
Sent from my Galaxy Note II LTE using Tapatalk
Click to expand...
Click to collapse
mdm_hsic is related to Modem part, you may try different modems (be mindfull of efs problem in newer firmwares), also try to enable/disable "fast dormancy". I think you could test that by selecting "GSM only" and observing.

mat9v said:
mdm_hsic is related to Modem part, you may try different modems (be mindfull of efs problem in newer firmwares), also try to enable/disable "fast dormancy". I think you could test that by selecting "GSM only" and observing.
Click to expand...
Click to collapse
Thanks for the reply
I have tried different radios in the past. If that's what you mean?
I've also tested around with fast dormancy (it is currently disabled)
My network only works on 3G and has no 2G coverage. It is purely a 3G network and therefore GSM only will not work. This problem still persisted when I was on a different network though and selected gsm only fornthe majority of the time.

fade2black101 said:
Thanks for the reply
I have tried different radios in the past. If that's what you mean?
I've also tested around with fast dormancy (it is currently disabled)
My network only works on 3G and has no 2G coverage. It is purely a 3G network and therefore GSM only will not work. This problem still persisted when I was on a different network though and selected gsm only fornthe majority of the time.
Click to expand...
Click to collapse
Yes, I was talking about radios.
Have you ever tried changing CSC file? Full, four part flash in Odin, not only PDA?
What method did you use for modifying fast dormancy setting? Because the correct one includes full factory reset when changing CSC. Anyway fast dormancy would be a problem only if you used 3G network for data.

mat9v said:
Yes, I was talking about radios.
Have you ever tried changing CSC file? Full, four part flash in Odin, not only PDA?
What method did you use for modifying fast dormancy setting? Because the correct one includes full factory reset when changing CSC. Anyway fast dormancy would be a problem only if you used 3G network for data.
Click to expand...
Click to collapse
Nope have not tried changing the CSC.
The method I used for fastdormancy was with that app in the marketplace than allows you to toggle it on and off. I'm not sure if fastdormancy is linked the mdm_hsic though, to be honest.

batt life

overnight, 20% drain with WiFi off and me asleep.
GSAM shows that the Android system is the big pig.
Anyone else?

metropical said:
overnight, 20% drain with WiFi off and me asleep.
GSAM shows that the Android system is the big pig.
Anyone else?
Click to expand...
Click to collapse
disable location, bluetooth and NFC and see if it still drains. I had horrible drains until I started turning those off. I turn them on On-Demand style now
Usually it is google search/now using location

I had change Location to batter saving, BT I only use on demand.
Shut off NFC since I don't use it.

metropical said:
I had change Location to batter saving, BT I only use on demand.
Shut off NFC since I don't use it.
Click to expand...
Click to collapse
If you have root install wake lock detector and see what is causing it. I disabled google search too

I haven't looked into root yet.
link for best info?

metropical said:
I haven't looked into root yet.
link for best info?
Click to expand...
Click to collapse
http://forum.xda-developers.com/g4/orig-development/root-tmo-vzw-intl-variants-soon-root-lg-t3164765
Read everything, also I recommend making a backup of your system.img before rooting so you can restore. What version do you have?
EDIT to backup follow autoprime's guide on post #2

gratzie

What you should do is get both wakelock detector and betterbatterystats app as well to check where it really is coming from. Then do a factory reset as well.

wadamean said:
What you should do is get both wakelock detector and betterbatterystats app as well to check where it really is coming from. Then do a factory reset as well.
Click to expand...
Click to collapse
let's see if T-Mo can fix the WiFi Calling REG99 issue first, then I'll root, wakelock etc.....
Although I like the phone, it's huge and I like my M7 a lot more. Way less batt usage and a smaller batt. Wish HTC was in better fiscal shape.

after messing with T-Mo tech supp tier 3 a dozen too many times, I did a factory reset (on a new phone? go figure).
way much better batt life and consistency with WiFi Calling, thus far, knock plastic and glass.