topic Re: Android 4.3 Wakelocks enormous battery drain in XPERIA archive

Android 4.3 Wakelocks enormous battery drain

Wuaschti — Tue, 26 Aug 2014 10:43:11 GMT

Hi guys!

For a little while now, i have big issues with the battery of my Sony V.

I already tried the system repair with the PC Companion, installed zero apps, but android OS is still on top of the battery drainers...

My statistics at the moment are:

82% battery remaining, 1h 19m and 19s running.

Android OS: 83%

Display: 10%

Android System 4%

Standby: 2%

So, i googled already and heard something about wakelocks... So i tried the app "Wakelock detector" to see if this app can show me the problem... and now, i see there is a huge problem, but i cant go very well in depth with this app... Wakelock detector shows me that:

80% of the time the phone is awake

Android System: 355x

-ActitvityManager-Launch: x55

-AlarmManager: x259 !!!!!

-show keyguard x14

-ActivityManager-sleep: x18

-keyguardWakeAndHandOff: x20

-network stats: x9

AND

Phone: x509

-RILJ: x502

AlarmManager: x7

So, i would be glad if anyone can help me... Could this be a hardware problem?

Thanks for your answers!

Re: Android 4.3 Wakelocks enormous battery drain

Rickard — Tue, 26 Aug 2014 11:01:12 GMT

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

As i understand it, AlarmManager is used by other apps to keep the phone awake so the cause is not AlarmManager itself but something that's using it.
I would recommend that you first try your phone in safe mode to see if it's caused by an app that you have downloaded. In safe mode the phone will not load any 3:rd party apps.

Re: Android 4.3 Wakelocks enormous battery drain

Wuaschti — Tue, 26 Aug 2014 13:33:33 GMT

hi!

i tried it now, charged the phone fully, but same happens again. After 1 hour, 10% battery missing and android os is highest drainer with 90%..

Any solution?

Re: Android 4.3 Wakelocks enormous battery drain

Rickard — Tue, 26 Aug 2014 14:45:54 GMT

That was in safe mode?

What happens if you set your phone to GSM only under Settings -> More -> Mobile networks -> Network mode?

Re: Android 4.3 Wakelocks enormous battery drain

Wuaschti — Tue, 26 Aug 2014 17:29:17 GMT

Same! Again, charged full, left 1 hour, 91%, Android OS 92% Battery Drain

Re: Android 4.3 Wakelocks enormous battery drain

Wuaschti — Tue, 26 Aug 2014 19:28:04 GMT

Update: seems like it has been a little bit better atm. 3h same 91%.

I will do a update tomorrow morning again.

But my question: how can the WCDMA be a problem?

Re: Android 4.3 Wakelocks enormous battery drain

Wuaschti — Wed, 27 Aug 2014 08:36:50 GMT

Safe Mode, GSM only seems to make it... 16 hours 83% left...

Whats the problem now, cause GSM is really slow internet^^

Re: Android 4.3 Wakelocks enormous battery drain

Rickard — Wed, 27 Aug 2014 09:31:36 GMT

I recommend that you contact your operator to see if they are aware of any network issues in your area and if fast dormancy is currently supported.

Re: Android 4.3 Wakelocks enormous battery drain

Wuaschti — Wed, 27 Aug 2014 17:52:57 GMT

Hey! I asked my operator, but still waiting for an answer...

BUT

i thought: Heeey, it seems like the problem is found, lets start in normal mode, install all my "normal" apps, shouldnt be a problem... but now everything is the same as before... 43 minutes, 92% battery, Android OS 82%...

I mean, yeah... that google play- problem is known, so this 100 wakeloks doesnt surprise me... but the RILJ of "Phone" has again 120 Wakeloks in this time with "GSM only"...

I really dont know what to do...

Re: Android 4.3 Wakelocks enormous battery drain

Rickard — Thu, 28 Aug 2014 07:21:13 GMT

If your operator doesn't have any network issue in your area and this also happens in GSM only i recommend that you test your phone with another SIM card and see if the issue remains.

Re: Android 4.3 Wakelocks enormous battery drain

Wuaschti — Thu, 28 Aug 2014 15:09:02 GMT

Hey!

Yes, i tried it with a different SIM-Card from another operator, but Android OS still drains ~10% an hour, still the same two wakelocks... So the SIM card isnt the problem.

Any more tips? if i google RILJ wakelock, there arent any good solutions or even answers...

Re: Android 4.3 Wakelocks enormous battery drain

Wuaschti — Thu, 28 Aug 2014 18:54:12 GMT

Update:

i looked up the stats in Wakelock detector again, and i found that:

The RILJ Wakelock is on of the CPU-wakelocks. I changed the view to the "Kernel Wakelock" and there i saw something very big:

(Runtime: 1h 25 minutes)

suspend_backoff: x305

mmc1_detect: x3073 (i have no SD card)

PowerManagerService.WakeLocks: x780

power supply: x3162

pm8921_soc_lock: x203

KeyEvents: x5692

alarm: x256

qcril: x248

event8-882: x2385

smdcntl0: x744

s,dcmtö1_ x204

mmc0_detect: x3076

smsm_snapshot: x229

qmuxd_port_wl_0: x778

qmuxd_port_wl_1: x208

Maybe this will help for a solution?

Re: Android 4.3 Wakelocks enormous battery drain

Rickard — Fri, 29 Aug 2014 11:52:21 GMT

I recommend that you contact a service location for further investigation of your phone. For more information about how to submit your phone for repair and where, contact your local support team.