I have been flashing CM7 nightlies for a while now, but in the last few versions (currently on #12) I am starting to see more random reboots (and occasional boot loops). I am using the stock kernel. I have experienced the problem while using the stock adw and LPP.
I had been flashing over just clearing cache and dalvik, but recently did a full wipe to see if I would still have the problem, and I did.
These reboots appear to happen when I am browsing the internet (stock browser), listening to audio (stock app, pandora, or audible.com app), and playing games/downloading something all at one time.
I am not overclocked at all, I am using all stock settings in CM7.
Any instructions on what can be done to fix/avoid this would be great.
I would lean towards it being a CPU issue, It may be that the new CM7 Kernel is slightly undervolted and when you are using the CPU for an extended amount of time that it reboots on you. I suggest trying out some other kernels to see if it continues to happen the new incredikerenel is supposed to address some of the stability issues people have been having lately.
Thanks, I will give the new incredikernel a shot and post back.
Edit: So far so good. After installing the 3.6 incredikernel I have not had any random reboots, even under pretty heavy load. Thanks again for the tip.
Hi Guys,
i have a bit of a problem with the battery in my GNex maguro.
I'm an avid Rom flasher, but when i have something that works well i usually settle with it for a while. So i flashed Cataclysm (http://forum.xda-developers.com/showthread.php?t=1995801) sometime in the last months and it was running great. Best bettery life i had so far.
Then with the release of Android 4.4 i looked for a rom to test it. I flashed XP (http://forum.xda-developers.com/showthread.php?t=2539201) and i really like the 4.4 changes.
But since then my battery won't even last a day in standby mode. I thought maybe it's an issue with 4.4. still, but even after flashing back to Cataclysm (newest release) i still had the same issues. I thought it may well be, that the final version isn't what it used to be, so i flashed another rom again. This time Purity (http://forum.xda-developers.com/showthread.php?t=2012706) aaaand... still the same problem. So now i'm pretty much lost. I also tried different kernels (lean kernel specifically) but to no avail.
My battery used to last 2+ days in idle mode. Now i can see my battery drop every minute. It barely holds over 10 hours. I already did a full phone wipe and flashed back to stock before installing cataclysm again but still no improvement.
I hope someone can help me here or point in the right direction.
Sorry if this topic already exists, but the search funtion doesn't seem to work right now and google didn't show something helpfull.
Thank you all in advance.
I don't know why you would still have bad battery life moving back to the original rom you used but.. on 4.4 it is most likely the new Google Now features that constantly listen for voice commands. Disable it by long pressing on an empty part of the home screen and go to settings. Slide Google Now Off and go to voice and turn off hotword detection as well.
I get great standby battery life on 4.4. I'm running the 11/29 ART build of cmetal(toro), 150ish hours of uptime without any issues so far.
Re: Bad Battery Life since KK
What kernel are you running? Are you just using whatever kernels come with each ROM?
I'll try turning off google now and the voice stuff and report back.
It still seems really weird to me, that the problem still persists after flashing back to 4.3. My guess would be, that 4.4 flashes something hidden that messes with the battery. But i don't know where or what.
Especially since it persists after a complete wipe (/data, /system and /cache).
Well, i'll see how it behaves without google now.
What kernel are you running? Are you just using whatever kernels come with each ROM?
Click to expand...
Click to collapse
Well i used mostly lean Kernel with 4.3 roms but i can't find any 4.4 kerneles besides CM. I have XP installed right know which uses CM Kernel.
Re:Bad Battery
Make sure your governor is set to interactive or ondemand...it could be seeing power drain from being set to one of the performance settings.
It's also possible that your battery is just going bad...do you have a backup battery you can try?
Well i used mostly lean Kernel with 4.3 roms but i can't find any 4.4 kerneles besides CM. I have XP installed right know which uses CM Kernel.[/QUOTE]
It could just be that you need to replace your battery. They are only good for so many charges and do degrade.
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Reporting back. After deactivating google now yesterday my battery is still ****. It's at 50% after 2h idle and 30 minutes screentime. Before the 4.4 flash it would be at around ~85-90% now. I suspect that 4.4 flashes something in some hidden partition that i don't have access to, that messes with the battery. Users on other boards report the same issues as i have.
dwoods1983 said:
Make sure your governor is set to interactive or ondemand...it could be seeing power drain from being set to one of the performance settings.
It's also possible that your battery is just going bad...do you have a backup battery you can try?
Click to expand...
Click to collapse
Just checked. Governor is set to interactive. It's also the default setting.
I sadly don't have a backup battery.
It could just be that you need to replace your battery. They are only good for so many charges and do degrade.
Click to expand...
Click to collapse
Could be, of course. But it's kinda weird that the decline is so dramatic and it has to be a pretty big coincidence that it just happend after a 4.4 flash. Seems unlikely to me.
edit: I'll order a new battery just to eliminate the battery as the source of error.
Mine is pretty bad but it's running google play to death so maybe gapps flash was bad? dunno
merid14 said:
Mine is pretty bad but it's running google play to death so maybe gapps flash was bad? dunno
Click to expand...
Click to collapse
this maybe issue of ram management.. try some good apps to control those background & foreground app from running without control. dont use any task killer.. please
i recommend using greenify.apk. donate version much better.
sorry for my bad english
galaxy nexus i9250
Same problem here. Since I flashed Kitkat on my phone, battery life isn't enough to last a day on standby. I tried installing another kernel (ASKP) but to no avail. Please keep in mind that I'm not very experienced with custom roms and rooting my phone. Does anyone have some good tips to improve battery life?
Update: After fiddling around a bit with better battery stats, greenify and a bunch of other stuff... i still don't have a solution. I made some screenshots of my stats, but can't post them here because i don't have permission to do that...
So i reflashed swordrune's cm11 rom and it seems to be working better with 1080p kernel w/o art enabled. i'm 11 hrs in with 80% battery on the extended battery (toro btw)
Un4s said:
Update: After fiddling around a bit with better battery stats, greenify and a bunch of other stuff... i still don't have a solution. I made some screenshots of my stats, but can't post them here because i don't have permission to do that...
Click to expand...
Click to collapse
are u sure greenify didnt helping??? already got rooted & exposed installer running??
can u state your screen on time??
usually gnex can handle 3-4 hour screen on depend on battery condition n phone performance... not include idle n stanby time.
galaxy nexus i9250
memaro_maro said:
are u sure greenify didnt helping??? already got rooted & exposed installer running??
can u state your screen on time??
Click to expand...
Click to collapse
Yes, i am rooted, but i didn't have the donate version of greenify. Bought it now and will test again.
Screen on time ~1:30h
Un4s said:
Yes, i am rooted, but i didn't have the donate version of greenify. Bought it now and will test again.
Screen on time ~1:30h
Click to expand...
Click to collapse
that will help.
if u lightweight user, i suggest u to optimized performance. use apps such trickster mod, rom toolbox, or in addition of any light battery saving apps ( for optimization)
should be improve on screen time.
galaxy nexus i9250
Not to hijack your thread, but I'm also experiencing battery issues after flashing the XP 4.4 rom. I did enjoy it but the battery drain was terrible. Not only that, for some reason my charger drains on a 1A charger but charges slowly on a .7A somehow. I only have 1 micro usb cable so I can't test if it's the cable and I can't find any apps to check the current speed. I tried downgrading and flashing to Slimbean but so far it's been no dice.
memaro_maro said:
that will help.
if u lightweight user, i suggest u to optimized performance. use apps such trickster mod, rom toolbox, or in addition of any light battery saving apps ( for optimization)
should be improve on screen time.
Click to expand...
Click to collapse
Ok, back again. hibernated every app and system-app that was running in background. Still wasn't getting better. I then saw the only services still running are google location services. I deactivated them now to see if these are causing it.
The biggest wakelocks i have are "wlan_rx_wake" which seem to be a known problem with KK:
http://forum.xda-developers.com/showthread.php?t=2519294
I then researched again and found several threads in google groups which describe the same problems that i have. Across several devices (though mostly Nexus 4, 5 and 7).
Google seems to be aware of that issue and is working on it.
Not to hijack your thread, but I'm also experiencing battery issues after flashing the XP 4.4 rom. I did enjoy it but the battery drain was terrible. Not only that, for some reason my charger drains on a 1A charger but charges slowly on a .7A somehow. I only have 1 micro usb cable so I can't test if it's the cable and I can't find any apps to check the current speed. I tried downgrading and flashing to Slimbean but so far it's been no dice.
Click to expand...
Click to collapse
Yes, same for me. Charging is really slow since 4.4 as is the bootprocess of my phone. From the first vibrate when switching the phone on it takes ~10 seconds until the google logo pops up.
i dont know any about gapps issues bcoz not running any gapps in my phone since last year.
1. try searching for updated radio.img (baseband/ radio) if got any network issue.
2. try install trickster mod app. this app can help you for tweaking into deep sleep, also help for optimizing.
galaxy nexus i9250
crayjin said:
Not to hijack your thread, but I'm also experiencing battery issues after flashing the XP 4.4 rom. I did enjoy it but the battery drain was terrible. Not only that, for some reason my charger drains on a 1A charger but charges slowly on a .7A somehow. I only have 1 micro usb cable so I can't test if it's the cable and I can't find any apps to check the current speed. I tried downgrading and flashing to Slimbean but so far it's been no dice.
Click to expand...
Click to collapse
try this for helping you go into deep sleep
galaxy nexus i9250
memaro_maro said:
try this for helping you go into deep sleep
galaxy nexus i9250
Click to expand...
Click to collapse
Hmm I don't know if this is going to resolve the charging problem but i will try it and also try and use a battery calibrater and come back.
Hi I have tried couple of Roms like Ditto and AOSB 4.4.2 Roms. For all these I have issues with my car bluetooth. The calls cant be answered properly or nothing cant be heard. I have raised this issue in my posts also. But not sure, any got fixed.
so please help me by telling, If there is any 4.4.2 Roms for N7100 without car bluetooth issue. Please help
I am on CM11 Nightly build from 14th March (have been using CM11 since M2 release) I went to this because others I tried lost my baseband and IMEI.
This works fine with my Parrot system - for both calls and playing music from my phone.
Only found your query because I am looking to see if there any questions on the fact that the in call volume level when just using the phone is very quiet even with it on full volume.
THe other quirk I have found (not a show stopper) is that the phone no longer reports the provider correctly. Before I moved from stock, the phone reported my provider as EE, now it fluctuates between T-Mobile and Orange
Am planning on trying out SlimKat.
I could be wrong but I think that most 4.4 ROMs out there are based on CM11
I have the N7105 LTE version of the phone
I switched to SlimKat last night and this one also has no problems with Bluetooth - used it to listen to music and make phonecalls from the car on the way in to work this morning.
It's early days but comparison between CM11 and SlimKat so far would be that SlimKat is the better ROM. It's hard to recall but am sure that I can get more app shortcuts to a screen, plus am not restricted to using hangouts for SMS messages.
Both ROMs have pretty good battery life with some aggressive Greenifying - been off charge for 6hours 30 mins so far today and have used 13% battery, bluetooth has been on all the time, mobile data is switched on but wifi doesnt stay on when screen is off.
SlimKat seems a good deal faster/more responsive than CM11 and Quadrant would seem to back that up - 6782 on SlimKat, 5656 on CM11 (CM11 was running in performance mode at the time too) so that is roughly 20% faster without applying any performance enhancements.
Think I will be sticking with this for a while
fatboyinlycra said:
I switched to SlimKat last night and this one also has no problems with Bluetooth - used it to listen to music and make phonecalls from the car on the way in to work this morning.
It's early days but comparison between CM11 and SlimKat so far would be that SlimKat is the better ROM. It's hard to recall but am sure that I can get more app shortcuts to a screen, plus am not restricted to using hangouts for SMS messages.
Both ROMs have pretty good battery life with some aggressive Greenifying - been off charge for 6hours 30 mins so far today and have used 13% battery, bluetooth has been on all the time, mobile data is switched on but wifi doesnt stay on when screen is off.
SlimKat seems a good deal faster/more responsive than CM11 and Quadrant would seem to back that up - 6782 on SlimKat, 5656 on CM11 (CM11 was running in performance mode at the time too) so that is roughly 20% faster without applying any performance enhancements.
Think I will be sticking with this for a while
Click to expand...
Click to collapse
I too recently shifted to SlimKat and have no issues with BT connected to my car system.
fatboyinlycra said:
I switched to SlimKat last night and this one also has no problems with Bluetooth - used it to listen to music and make phonecalls from the car on the way in to work this morning.
It's early days but comparison between CM11 and SlimKat so far would be that SlimKat is the better ROM. It's hard to recall but am sure that I can get more app shortcuts to a screen, plus am not restricted to using hangouts for SMS messages.
Both ROMs have pretty good battery life with some aggressive Greenifying - been off charge for 6hours 30 mins so far today and have used 13% battery, bluetooth has been on all the time, mobile data is switched on but wifi doesnt stay on when screen is off.
SlimKat seems a good deal faster/more responsive than CM11 and Quadrant would seem to back that up - 6782 on SlimKat, 5656 on CM11 (CM11 was running in performance mode at the time too) so that is roughly 20% faster without applying any performance enhancements.
Think I will be sticking with this for a while
Click to expand...
Click to collapse
Wifi doesnt stay means...wifi gets disconnected when the screen gets turned off ? Is this an issue ?
harismahesh said:
Wifi doesnt stay means...wifi gets disconnected when the screen gets turned off ? Is this an issue ?
Click to expand...
Click to collapse
It is how I have set it up - it's in wifi options - when the screen is off you can keep wifi running all the time, or only when it is plugged in to charge, or never.
I use the "never" option unless i am downloading a large file such as an OTA update or even a new ROM. This helps the battery life.
Everytime I flash the latest build of cm11 I get no problems at all with the rom, no glitches. It works perfectly for me, except for the battery time.
When I use my phone for simple texting or tweeting or anything of that form, my battery seems to be drained in a short period of time. The battery time in standby is still the same as stock rom.
I am currently using cm11-20140429 for the E975 model
I have tried changing kernels, I am currently using the 4.4.2 cyanokernel from this thread http://forum.xda-developers.com/showthread.php?t=2572380
I have tried turning of Google Now Launcher and i switched back to the stock cm11 trebuchet, but the problem remained.
the problem is not battery-related or charger-related since the battery worked perfectly on stock rom(more than 24 hours of listening to music on standby)
So I was wondering if any of you had the same problem or if there's any solution that you guys have found?
Hello Guys,
until a couple of weeks ago I had cm11 installed. It was mostly awesome , ESPECIALLY battery life, it would last up to 48 hours, YES ; 48 hours, it never lasted less than 24 hours unless I was using Maps for a long period.
Now I have cm12 installed (build # cm_amami_userdebug 5.02 LRX22G 2312e8540e test-keys, cm12 version up to 2015-03-01 nightly, all having the following two issues which might be connected:
- wifi will disconnect frequently, citing "authentication problem", I just turn it off and on again and it reconnects immediately; no need to re-authenticate.
- huge battery drainage.
Both issues are resolved by reinstalling cm11. But since there is lots off issues with cm12 recovery the switch back and forth is not easy any more and take at least two hours; plus I wanna keep using Lollipop
extract said:
Hello Guys,
until a couple of weeks ago I had cm11 installed. It was mostly awesome , ESPECIALLY battery life, it would last up to 48 hours, YES ; 48 hours, it never lasted less than 24 hours unless I was using Maps for a long period.
Now I have cm12 installed (build # cm_amami_userdebug 5.02 LRX22G 2312e8540e test-keys, cm12 version up to 2015-03-01 nightly, all having the following two issues which might be connected:
- wifi will disconnect frequently, citing "authentication problem", I just turn it off and on again and it reconnects immediately; no need to re-authenticate.
- huge battery drainage.
Both issues are resolved by reinstalling cm11. But since there is lots off issues with cm12 recovery the switch back and forth is not easy any more and take at least two hours; plus I wanna keep using Lollipop
Click to expand...
Click to collapse
Best wait for the proper port of Lollipop from Sony.
Several cries for help in the Q&A thread from people with broken CM builds. What's the obsession with putting some random port on your phone to see if it will work?
Have you tried the CM thread?
Didgesteve said:
Best wait for the proper port of Lollipop from Sony.
Several cries for help in the Q&A thread from people with broken CM builds. What's the obsession with putting some random port on your phone to see if it will work?
Have you tried the CM thread?
Click to expand...
Click to collapse
well, I am not experienced enough with these forums to know where to post that question.
One thing though, it is not a z1c issue, it is happening almost for all CM12 builds on any device. Just Google "cm12 wifi authentication problem" or "cm12 battery drainage issues. You will find issues for nexus devices, for oneplusone and for a whole bunch of different devices. No solutions offered though.
Anyway, I am back to cm11 nightlies now, but hope cm12 issues will be resolved.