Database Users

Solution for Battery Drainage in ICS Stock ROM explained

My English might be poor, hopefully this thread help. I have flashed stock ICS in my tab baseband XXLQ8. After fully recharged my battery, I found that the performance was not tolerable since in HC 3.2, it only drains 2-3% battery life per 24 hrs in a sleep mode. Unlike HC 3.2, ICS 4.0.4 (baseband XXLQ8, some addressed as Italian stock ROM) drains 1-2% per hour in sleep mode. My battery life dropped 7% in 5 hours without any usage (off screen).
Later on I installed CPU SPY and BetterBatteryStats suggested by some of the posts here. Having the same problem, my tab could barely get into the Deep Sleep state when it was in sleep mode. Instead Deep Sleep, it still works under 216 MHz.
Somebody here suggested it was the Push Service in Samsung App, Google+ or something. Some even found that it was the GSM problem. With the sim card slotted in, the problem gone. However we are pretty sure the effect of the problem is battery drainage in sleep mode. We found that there is a kernel wakelock called l3_hsic all the while running in background that prevents the tab from going into Deep Sleep.
There are several possibilities causing this to happen. Apps creating wakelock maybe, some suggested Google+ with the sync or upload function enable; hey, wait! I don’t have a Google + account signed in, could that still be the problem? Some say Samsung App Push Service causes it to happen, so I just give it a try. Launch the Samsung App, go to the Settings and disable the Push Service. Put the tab to sleep for an hour and check back. Battery drainage still occurs since it dropped 2% for an hour. What a disappointment. But wait, this time I get into the tab Settings>Application>All and find the Samsung Push Service. Checked there were permissions such as creating wakelock and prevent tablet from sleeping. Tap on it and uninstall the app. Put my tablet into sleep again.
After 3 hours, turn on the tab and check back with the battery stats. CPU SPY shows that my tab could get into Deep Sleep state. My battery life did not even drop a single percent. Today is my third day from the last charge. Thanks god, problem solved.
HIT THANKS Button if this helped you.

It doesn't work for me. Still looking

and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?

sgabytzu said:
and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?
Click to expand...
Click to collapse
Is that the "battery drains while on airplane mode" issue? I have it too :crying:

it doesn't work for me bro..

for me, i noticed that google maps (auto update on my place, that friends can see where i am) Since I enable auto location my place, i get no deel sleep, when i have disable it, i have 100% deepsleep

I disabled Maps to fix my battery drainage issue. If I need to use maps I just enable it.
Sent from my DROID RAZR using xda premium

The solution to the l2_hsic is to insert a uSIM.
Nevertheless the deep sleep problem will remain. Sorry!

hello,
can we flash another kernel ?

I have the same issue with my galaxy tab 10.1 running Stock ICS 4.04. Something is interrupting deep sleep mode and the battery consuption is 2% per hour in standby mode.
After rebooting it seems to be OK but later and i dont know when/how/why... stops entering deep sleep. I think this problem needs a revision by Samsung but i am sure that they have forgotten us.

I've seen a firmware update on some other thread, for our tablets... but it seems we're not getting it OTA

Another Tips for slove it
I found another solution for this issue in this post:
Finale Solution for Battery Drain issue

l2_hsic wakelock explained.
sgabytzu said:
and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?
Click to expand...
Click to collapse
Please check. :angel:
http://forum.xda-developers.com/showthread.php?t=2474923

Maps Samsung apps Google plus
They sometimes make device wake during sleep
I disabled them all

[q] [tilapia] battery drain issue

Hi Guys,
I am wondering is there any of you having same issue as me ?
I am using TILAPIA device and suffering from around 5% / H battery drain during idle (all off and in airplane mode)
strangely, BBS report is showing my device is in sleep mode for more than 90% of the time
as per now what I can think of is to set tasker profile to shut down the device when screen is off for 5 mins
but I am still curious why and what is the cause of battery drain while the device is actually in "sleep mode"
Thank you

dicxz80 said:
Hi Guys,
I am wondering is there any of you having same issue as me ?
I am using TILAPIA device and suffering from around 5% / H battery drain during idle (all off and in airplane mode)
strangely, BBS report is showing my device is in sleep mode for more than 90% of the time
as per now what I can think of is to set tasker profile to shut down the device when screen is off for 5 mins
but I am still curious why and what is the cause of battery drain while the device is actually in "sleep mode"
Thank you
Click to expand...
Click to collapse
Hi, I have same problem. Asking if anyone can see something weird in BBS dump in post here
P.S. Concluded that my case is totally same as described here

[BUG] Galaxy S4 super draining battery

Hi guys. Since last week my Galaxy s4's battery is getting empty very quickly.
In config > Battery I get this results (last night it was in airplane mode)
From 100% - 58% in 4 hours (in airplane mode)
GPSD 48%
Anfroid OS 26%
Inactive 17%
Android system 6%
Google Play services 2%
I've already tried restoring to factory values but nothing happened.
Any thoughts?
Thanks!

santipuig said:
Hi guys. Since last week my Galaxy s4's battery is getting empty very quickly.
In config > Battery I get this results (last night it was in airplane mode)
From 100% - 58% in 4 hours (in airplane mode)
GPSD 48%
Anfroid OS 26%
Inactive 17%
Android system 6%
Google Play services 2%
I've already tried restoring to factory values but nothing happened.
Any thoughts?
Thanks!
Click to expand...
Click to collapse
Hi mate ,
First thing we need to do to find out who is keeping your phone awake is using an app like
http://forum.xda-developers.com/showthread.php?t=1179809
Let it run for a few hours and then check the logs,,,there is the information needed.
meanwhile check you settings , google locations , wheather apps , Maps ( huge battery hog)...

Here are some screenshots
MAX 404 said:
Hi mate ,
First thing we need to do to find out who is keeping your phone awake is using an app like
http://forum.xda-developers.com/showthread.php?t=1179809
Let it run for a few hours and then check the logs,,,there is the information needed.
meanwhile check you settings , google locations , wheather apps , Maps ( huge battery hog)...
Click to expand...
Click to collapse

santipuig said:
Here are some screenshots
Click to expand...
Click to collapse
Hi mate,
GPSD wakelock ( and L2_hsic) may be caused by an unstable network , try setting the network mode to wcdma only not to auto connect , try a different modem to see if you get a better signal response..review the settings in your apps like google location , maps , FB
Check this thread
http://forum.xda-developers.com/showthread.php?t=1878828
Check your fast dormancy setting , turn it off
http://forum.xda-developers.com/showthread.php?t=2291100

santipuig said:
Hi guys. Since last week my Galaxy s4's battery is getting empty very quickly.
In config > Battery I get this results (last night it was in airplane mode)
From 100% - 58% in 4 hours (in airplane mode)
GPSD 48%
Anfroid OS 26%
Inactive 17%
Android system 6%
Google Play services 2%
I've already tried restoring to factory values but nothing happened.
Any thoughts?
Thanks!
Click to expand...
Click to collapse
your battery need to be re-calibrated.
to do it follow my steps and your battery should be fine again.
charge your phone to 100%
use it till the phone shuts down (dont overuse it use it normally as you use daily)
now charge the phone till 100% without using it
repeat the procedure 2-3 times and now you have brand new battery

Hi guys! Thanks for helping me. I've what you recommended me to do but I couldn't achieve to fix the problem. I didn't try to disable fast dormancy because the procedure required to grant root access and I don't want to void the warranty unless it's the only way.

Before you experienced this draining, was battery life good or was the draining slowly getting worse and worse?
Sent from my GT-I9505 using Tapatalk

Hazerm said:
Before you experienced this draining, was battery life good or was the draining slowly getting worse and worse?
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
The battery was working fine before this. It happened from one day to the other.-

I've found a partial solution to fix the problem. I changed the network mode from wcdma to GSM only and the reboot. Look at the screenshots after

santipuig said:
I've found a partial solution to fix the problem. I changed the network mode from wcdma to GSM only and the reboot. Look at the screenshots after
Click to expand...
Click to collapse
Hi,
you could try to flash a new baseband, which can improve your signal strength. It's only strange that your problem appeared from one day to the other, but I think it would be worth a try anyway
Here's a link with actual modems:
http://forum.xda-developers.com/showthread.php?p=50965837#post50965837

Android OS Wakelock killing the battery!

Hey guys,
I've been having an S6 Edge+ for a couple of days already but there seems to be an issue with the ROM. I'm getting a lot of battery drain from the "Android OS" and I'm losing up to 5% - 7% per hour in standby.... I have even re-flashed the entire ROM and factory reset two times... still the same.
I've disabled Google's Location History and Google Now but this did not help...
My previous Galaxy S6 was also running the latest ROM but there were no such problems...
Has anybody else experienced such an issue and do you have any ideas?

OrionBG said:
Hey guys,
I've been having an S6 Edge+ for a couple of days already but there seems to be an issue with the ROM. I'm getting a lot of battery drain from the "Android OS" and I'm losing up to 5% - 7% per hour in standby.... I have even re-flashed the entire ROM and factory reset two times... still the same.
I've disabled Google's Location History and Google Now but this did not help...
My previous Galaxy S6 was also running the latest ROM but there were no such problems...
Has anybody else experienced such an issue and do you have any ideas?
Click to expand...
Click to collapse
Check if any sync is stuck in loop, sometimes this kills battery very easily. If all else fails check with some app like GSam.

Lucky8890 said:
Check if any sync is stuck in loop, sometimes this kills battery very easily. If all else fails check with some app like GSam.
Click to expand...
Click to collapse
Unfortunately GSam does not produce too detailed information without Root access and it only says Android System and lists all the services that are under it...
The interesting part is that after several re-flashes with the same firmware, the wakelock disappeared...
Now I get 76% to 80% deep sleep...
Go figure... Probably some stuck sync as you mentioned...

OrionBG said:
Unfortunately GSam does not produce too detailed information without Root access and it only says Android System and lists all the services that are under it...
The interesting part is that after several re-flashes with the same firmware, the wakelock disappeared...
Now I get 76% to 80% deep sleep...
Go figure... Probably some stuck sync as you mentioned...
Click to expand...
Click to collapse
Ah great... I also had similar issue previously with Calendar sync, couple of flashes and it went. Now happily rooted

Android OS Wakelock killing the battery! ...... solved
OK, im not too savvy with settings and systems, just sharing what i have been through. I too had a major battery drain problem on my S6 Edge+ , giving me abt 8-10hrs of use after a full charge. Even during the nights with everything off and power saving enabled i would lose abt 50-60% battery over 8 hours. ..... caused by Android OS ....... it would keep the screen awake for hours even with the screen off .... ( dont know how that worked) ..... tried a factory reset but didnt help. Then rooted the phone and downloaded wakelock detector and installed it as a system app. Installed greenify and doze ..... last night lost 4% over 11hours with wifi and 4g off and power saving enabled which is a drastic improvement. Facing one little problem that images do not get downloaded (automatically or manually) in whatsapp with wifi in use. Will use the cell for a few days and post again abt how the battery is holding up and if there is any other performance issues.

If you want to save battery, try this app:
https://play.google.com/store/apps/details?id=com.kunkunsoft.packagedisabler
It show all RAM usage of each app, you can disable any app in Bloatware (samsung default app) list to save power
This app run WITHOUT ROOT

Phone won't enter deep sleep....

Setup: running latest stock image (mhc19i). Rooted, xposed, ElementalX kernel with ghost pepper script, and I run naptime with aggressive Doze.
Issue: fell asleep with my phone around 50% battery remaining. Woke up seven hours later and it had 30 something. I typically don't see more than 1-2% idle drain over night so this got my attention. I checked better battery stats and I obviously have a wakelock issue. Not sure what it could be. Powermanagerservice was running at something ridiculously high, like 96%. Audiomix is the other wakelock running rampid. See screenshots below. Any input appreciated!

Pain-N-Panic said:
Setup: running latest stock image (mhc19i). Rooted, xposed, ElementalX kernel with ghost pepper script, and I run naptime with aggressive Doze.
Issue: fell asleep with my phone around 50% battery remaining. Woke up seven hours later and it had 30 something. I typically don't see more than 1-2% idle drain over night so this got my attention. I checked better battery stats and I obviously have a wakelock issue. Not sure what it could be. Powermanagerservice was running at something ridiculously high, like 96%. Audiomix is the other wakelock running rampid. See screenshots below. Any input appreciated!
Click to expand...
Click to collapse
Have you tried rebooting and then monitoring it to see if it happens again? It could just be a one-time bug, you'd need to reboot to confirm that though.

I was thinking that as well. I did recently reboot. I'm going to accumulate a good amount of up time and then check the stats again. As of now, battery drain seems to be normal.

Something is still keeping my phone awake while the screen is off...

Pain-N-Panic said:
Something is still keeping my phone awake while the screen is off...
Click to expand...
Click to collapse
I've seen this Audio Mix wakelock happen before on the OnePlus One, from memory I think it was kernel related, so switching kernels might be worth a try. You could also try using Wakelock Detector to see if it'll shed any more light on it, maybe it's an app rather than the kernel.

Hmm....think I solved my issue. I got audiomix wakelock to completely disappear. Simply going into settings and turning off all notification sounds did the trick. For me it's not an issue, however, for others who don't constantly keep their device on vibrate I could see this being a massive dilemma. I'm assuming "powermanagerservice" is a normal wakelock to observe?

Pain-N-Panic said:
Hmm....think I solved my issue. I got audiomix wakelock to completely disappear. Simply going into settings and turning off all notification sounds did the trick. For me it's not an issue, however, for others who don't constantly keep their device on vibrate I could see this being a massive dilemma. I'm assuming "powermanagerservice" is a normal wakelock to observe?
Click to expand...
Click to collapse
Yes, powermanagerservice is perfectly normal for when the phone is in use (or some background operation is running). You'll see it roughly correlates with your screen-on time.

I recently decided to check the huge battery drain during night and I found out that my phone would not go in deep sleep. Can anyone please help with that? Also, the 'jio' app I have been using was installed 50 days back and the battery drain similar before that too. Would be really great if I could find a solution for the deep sleep issue. I am trying to load the screenshots of betterbatterystats but not able to.

vikalp4jain said:
I recently decided to check the huge battery drain during night and I found out that my phone would not go in deep sleep. Can anyone please help with that? Also, the 'jio' app I have been using was installed 50 days back and the battery drain similar before that too. Would be really great if I could find a solution for the deep sleep issue. I am trying to load the screenshots of betterbatterystats but not able to.
Click to expand...
Click to collapse
Use gsam form the play store to find out what app is keeping your phone awake.
Uninstall said app.