I have a Samsung Galaxy S7 and the battery was doing fine. A few weeks ago the phone started getting quite slow and the battery life went way down. I had installed a few apps around then, so I removed them and still battery life was bad. I tried restarting the phone and that didn't help. At the time I was running Marshmellow and I was using OSMonitor to watch the system. I was finding that Android OS was taking most of my battery and 30% of the CPU all of the time. Not long after that Nougat became available and I upgraded thinking that might help. It didn't help and OSMonitor no longer worked. I switched to GSam Battery Monitor and used adb to give it the permissions to see all app information. I'm still finding that the Kernel is taking 28% of my battery and Android System is taking 37% of my battery and I can't figure out why. I would rather not need to do a full reset and install all of my apps and settings again, so I'm asking if anyone out there has ideas on things to try and fix this. This is a non-rooted phone running the stock image from Samsung/Verizon.
Thanks for any help.
try activate the Battery Saving option and use it for a day and see if helps
I've had this happen to me before. The phone was getting seriously hot while it was happening too. I decided to do all I can without doing a factory reset (I was on vacation at the time, so no access to something to backup my data).
I cleared the cache of all apps. Then I disabled all of the stock apps I didn't need (like Gear VR). I also shuttered apps running in the background to about a max of 3 apps open at any given time. That stopped the insane heat issue, but Android System was still sucking 30% of the battery. I turned off Always On Display, that got me down to about 25%. A factory reset got the phone down to around 10%, and I never saw the issue again.
Before you do that I would recommend checking out this thread below as there does appear to be a bunch of other possible solutions provided by others.
https://forum.xda-developers.com/s7-edge/help/how-experiencing-android-battery-drain-t3327730/page51
Djuganight said:
try activate the Battery Saving option and use it for a day and see if helps
Click to expand...
Click to collapse
But then my background syncing is turned off too...
I didn't need this before, so wondering why I should need it now.
I had same issues and was able to fix it. See the following thread for details.
https://forum.xda-developers.com/showthread.php?p=71558514
Try this , it helped me a lot .
Download from the XDA forums the Kernel named : "Apollo Kernel" v7
Just flash it , and when you install it , if you dont use your phone for high end games or hard work,that requires high end specs , then you can underclock the cpu/gpu .
It s a battery life saver, plus , your components will be much better in terms of thermals/life
Related
Hello Developers.
My Device is Lava XOLO A500.
Everything was fine when I brought it. Its battery life was perfect. But since a week I am experiencing problem with the battery.
Its draining very fast even when not in use. I keep my phone full charged at night and when I see it in the morning I find it fully discharged.
Please Help Me. I really need your help.I am providing the battery usage screenshot below which may help you to understand my problem.
Thank You.
Its hard to say. I take it you're rooted?
If so, install BetterBatteryStats found here, run it and check for any kernel wakelocks or heavy processes. You could also use TricksterMOD to see which CPU frequencies were used the most and whether or not your phone is going into deep sleep.
why don't you go to the svc center and claim the warranty?
it's still a week, isn't it?
cording ccingste
Go to setting > app > running and look for apps at cached processes status and stop most of them.
Ishan16 said:
Hello Developers.
My Device is Lava XOLO A500.
Everything was fine when I brought it. Its battery life was perfect. But since a week I am experiencing problem with the battery.
Its draining very fast even when not in use. I keep my phone full charged at night and when I see it in the morning I find it fully discharged.
Please Help Me. I really need your help.I am providing the battery usage screenshot below which may help you to understand my problem.
Thank You.
Click to expand...
Click to collapse
bro, go to settings > apps > running apps
check which user apps (not system apps) are running like maps, lava/xolo centre or something(any lava/xolo app), browser etc..
now go to > all apps (right towards the running apps) find that apps which u noted running for long time but u not need it run. select it and press Stop > Ok.
these apps restart every time with phone restart. so i suggest you to root your phone and uninstall those unwanted apps.
press thnx if i helped.
Sent from my A15 using my thumbs
What about trying to reset it?
Did you already try to run a full reset on the device? If the problem still occurs I'd think its a problem with the battery it self.
if you are rooted try changing the rom and doing proper wipe in recovery before installing the new rom.
Hey everyone!
I flashed CM 10.1 yesterday (cm_p500-userdebug-cm-10.1 from jenkins. androidarmv6.org/job/android/ and I'm amazed how smooth and perfect it is working (A huge 'Thank you!!' to the developer )
The problem is that my battery drain is awful. It took less than 8 hours today to completely discharge, though I hardly touched it.
I used Battery Calibration and also installed "WakeLock Detektor" to see where the problem is, and it stated that my phone isn't asleep 99% of the time though the display is turned off most of the time :crying:
The main reason is a kernel-related thing named "suspend_backoff" that keeps it awake.
I wanted to install a different kernel, but I got no clue which one... I actually planned on installing the recent DorimanX-Kernel, but then recognized that this is only available for the Galaxy SII
Can anyone recommend a Kernel that keeps my system running smooth but the battery drain at a minimum? I basically need my phone for Messaging (SMS, WhatsApp, E-Mail), Calendar and once in a while as navigation system. So no need for spectacular game performances or so.
Are there other Ways to improve my battery life on that phone (I've read all the general tips for improving battery life)? Maybe some OC things I can change manually?
I'm grateful for any help. Thanks!
Helbelinc said:
Hey everyone!
I flashed CM 10.1 yesterday (cm_p500-userdebug-cm-10.1 from jenkins. androidarmv6.org/job/android/ and I'm amazed how smooth and perfect it is working (A huge 'Thank you!!' to the developer )
The problem is that my battery drain is awful. It took less than 8 hours today to completely discharge, though I hardly touched it.
I used Battery Calibration and also installed "WakeLock Detektor" to see where the problem is, and it stated that my phone isn't asleep 99% of the time though the display is turned off most of the time :crying:
The main reason is a kernel-related thing named "suspend_backoff" that keeps it awake.
I wanted to install a different kernel, but I got no clue which one... I actually planned on installing the recent DorimanX-Kernel, but then recognized that this is only available for the Galaxy SII
Can anyone recommend a Kernel that keeps my system running smooth but the battery drain at a minimum? I basically need my phone for Messaging (SMS, WhatsApp, E-Mail), Calendar and once in a while as navigation system. So no need for spectacular game performances or so.
Are there other Ways to improve my battery life on that phone (I've read all the general tips for improving battery life)? Maybe some OC things I can change manually?
I'm grateful for any help. Thanks!
Click to expand...
Click to collapse
I found SweetnSour's version 11 kernel quite good with cm10.1.
However, the ROM needs some help to get good battery life:
Install 2xBatterysaver. It will turn off data and WIFI when the screen is off (turn them on periodically to allow syncing). There are various apps like this one.
Control WIFI. Use Y5 battery saver or Whiz WIFI manager. Y5 is tiny and effective but crashes on cm10.2. Both check for favorite hotspots, leave WIFI on and turn it off when leaving the hotspot.
Thanks for your quick response!
Just tried to flash Sweetnsour's Kernel, but it won't work. I flashed this one --> versionFINAL-CFS.zip
Is that the correct one or rather one of those? -->" version11-CFS-TWRP.zip" or "version11-CFS.zip"
Edit: What actually are CFS respectively TWRP? Searched the forums but couldn't find an answer
[solved] or rather [solvished]
After days of trial and error, cutting and re-enabling all connections from WiFi to 3G and hibernating, un- and re-installing basically all of my apps and trying loads of other roms I didn't love as much as this in the least, I found the source for my phone being awake basically 100% of the time.
The changelog of the mod stated that there's still this WiFi-issue that keeps the phone awake.
Well, though I've tried before, It now works: switching off the WiFi connection finally gets my phone to sleep.
I think I'll just be running on my mobile data for the followin days or weeks until this bug has been fixed.
Btw: A little hint for the developer (I'm posting here, since I'm a noob and can't post in the developers forum): When switching the WiFi options to turn out WiFi whenever screen goes dark, it won't connect afterwards. I always needed to reboot my phone when I wanted WiFi to work again. (This bug also caused my mobile data not to work. It apparently thought WiFi was running, though it couldn't connect.)
"Android System" keeping phone awake 24/7, draining battery life- T-Mobile Z3
I startes noticing that even after quite a few charge cycles, I'm still getting 4-5 hours of SoT over less than 24 hours. The phone is awake 24/7, and Android System seems to be the cause, but no idea why. Does anybody have any suggestions? I've attached some screenshots.
Factory reset?
Sent from my Z3
Maybe you have some apps causing wakelocks, showing through Android system? My dad had massive data usage from Youtube which confused me until I uninstalled an app that used YouTube.
Yes something that you have installed is causing the Android System to run for extended periods.
I would first try, disabling some apps in the settings menu, to see if that helps. (like throw, bluetooth, NFC, wifi, hotspot) see if any of those help
I would factory reset, and be very careful about what you install back onto the phone initially.
Or instead of reset try, clearing out all apps and re-install one by one untill you hit a bad one. If that does not work I guess reset.
festizzio said:
I startes noticing that even after quite a few charge cycles, I'm still getting 4-5 hours of SoT over less than 24 hours. The phone is awake 24/7, and Android System seems to be the cause, but no idea why. Does anybody have any suggestions? I've attached some screenshots.
Click to expand...
Click to collapse
In Settings>Power Management, there is a selection called "App power consumption". Have you checked there? There could be an app listed that drains the battery.
I had checked app power consumption, and unfortunately it didn't give me any further information. Better Battery Stats is also almost completely useless without root, but I did try it and saw Performance Manager or something to that effect was what was keeping it awake (in Kernel Wakelocks). I ended up doing a factory reset, and it seems like it's working fine now with the same combination of apps.
I think I disabled something I shouldn't have using pm block (package), since after some searching it seems like the phone might have been constantly searching for a blocked package, keeping it awake. It's working fine now, thanks everyone for your suggestions!
Dear all,
I am writing this post to hopefully get some help or directions regarding my issue, because I have already spent hours and hours looking on the internet trying fixes on my phone without anything working for me so far.. So I am getting a bit hopeless....
I recently got a Samsung Galaxy S6 (SM-920I model), and since the beginning i have been shocked by how CRAPPY the battery life was. To give you some ideas, my phone loses around 3-5% of battery per hour when idling and screen off, meaning I am not doing anything at all with my phone. Overnight, I lose about 15-20% battery with my phone on airplane mode, power saving, or whatever else you want, when it is not doing anything at all..
I know that my problem is a deep sleep problem, quite easy to identify i guess, so I have spent a lot of time reading and trying to fix it by myself but so far nothing worked.
To give you some background, after unpacking the phone I quickly upgraded Android from 5.0 to 5.1.1, so I cannot tell how it was working at 5.0. It is only after that I saw that a lot of people have issues on 5.1, but it is strange because just before having my S6, I was having a OnePlus One on 5.1 and I didn't have such battery problems and everything worked fine except turning off the "keep awake" setting option for GooglePlayServices.
What I can say though, is that since I upgraded I never had so much difficulties trying to fix a problem on any Android phone than before. Basically, since day 1, my phone never went a single time into deep sleep mode.
So far, to fix this, I tried all the following:
- Reflash the stock firmware (Samsung 5.1.1) --> many times, with full Cache/davik wipe and factory resets
- Root my phone using UniKernel
- Install custom ROM (I am running XtreStoLite version 2.2) + all kinds of wipe/factory reset
- Flash different kernel that are shipped with the ROM (there are 5 different ones if I remember)
- Use my phone with only stock apps (to see if the problem comes from one of my apps)
- Cold reboots
- The "DeepSleepFix" using the Android terminal as described on some forums (cannot post the link for now since I'm new..)
- And desperately, try to use my phone normally for now
Overall, I would say that my battery would last roughly 15 -20h in total with normal usage, not even heavy, which quite sucks..
I can show the no deep sleep issue easily to you with some screenshots (will put a link to the screenshots here when I have 10 posts... for now I can't..) , I have tried many applications to try to find the root cause such as:
- WLD
- 3C CPU
- BetterBatteryStats
- GSAM
etc.
I am monitoring my phone closely for the past 1-2 weeks and so far I have never seen it being in deep sleep at all (ah yes... 0.2s in total max all the time..). Also, when I check on the default Battery menu of Android, after a full day I would usually see "Android OS" on top and using 20-30% of the battery at least.
The problem seems to boil down to a process called "LHD" in the kernel wakelock. This is keeping my phone awake 100% of the time, whether I am using the phone or if I am not. However, even with this info I tried to search online and I cannot find anything about "LHD", so I am really stuck right now.. Do anybody knows what it is and why it is a problem for me?
If any of you have a solution or can give me some guidelines to help me fix this issue, I would really appreciate any help. If you need more information from me also let me know.
Thank you for taking the time to read me,
Best regards.
ImPain said:
Dear all,
I am writing this post to hopefully get some help or directions regarding my issue, because I have already spent hours and hours looking on the internet trying fixes on my phone without anything working for me so far.. So I am getting a bit hopeless....
I recently got a Samsung Galaxy S6 (SM-920I model), and since the beginning i have been shocked by how CRAPPY the battery life was. To give you some ideas, my phone loses around 3-5% of battery per hour when idling and screen off, meaning I am not doing anything at all with my phone. Overnight, I lose about 15-20% battery with my phone on airplane mode, power saving, or whatever else you want, when it is not doing anything at all..
I know that my problem is a deep sleep problem, quite easy to identify i guess, so I have spent a lot of time reading and trying to fix it by myself but so far nothing worked.
To give you some background, after unpacking the phone I quickly upgraded Android from 5.0 to 5.1.1, so I cannot tell how it was working at 5.0. It is only after that I saw that a lot of people have issues on 5.1, but it is strange because just before having my S6, I was having a OnePlus One on 5.1 and I didn't have such battery problems and everything worked fine except turning off the "keep awake" setting option for GooglePlayServices.
What I can say though, is that since I upgraded I never had so much difficulties trying to fix a problem on any Android phone than before. Basically, since day 1, my phone never went a single time into deep sleep mode.
So far, to fix this, I tried all the following:
- Reflash the stock firmware (Samsung 5.1.1) --> many times, with full Cache/davik wipe and factory resets
- Root my phone using UniKernel
- Install custom ROM (I am running XtreStoLite version 2.2) + all kinds of wipe/factory reset
- Flash different kernel that are shipped with the ROM (there are 5 different ones if I remember)
- Use my phone with only stock apps (to see if the problem comes from one of my apps)
- Cold reboots
- The "DeepSleepFix" using the Android terminal as described on some forums (cannot post the link for now since I'm new..)
- And desperately, try to use my phone normally for now
Overall, I would say that my battery would last roughly 15 -20h in total with normal usage, not even heavy, which quite sucks..
I can show the no deep sleep issue easily to you with some screenshots (will put a link to the screenshots here when I have 10 posts... for now I can't..) , I have tried many applications to try to find the root cause such as:
- WLD
- 3C CPU
- BetterBatteryStats
- GSAM
etc.
I am monitoring my phone closely for the past 1-2 weeks and so far I have never seen it being in deep sleep at all (ah yes... 0.2s in total max all the time..). Also, when I check on the default Battery menu of Android, after a full day I would usually see "Android OS" on top and using 20-30% of the battery at least.
The problem seems to boil down to a process called "LHD" in the kernel wakelock. This is keeping my phone awake 100% of the time, whether I am using the phone or if I am not. However, even with this info I tried to search online and I cannot find anything about "LHD", so I am really stuck right now.. Do anybody knows what it is and why it is a problem for me?
If any of you have a solution or can give me some guidelines to help me fix this issue, I would really appreciate any help. If you need more information from me also let me know.
Thank you for taking the time to read me,
Best regards.
Click to expand...
Click to collapse
Hello and thank you for using XDA Assist.
Sorry to hear about your trouble but we cannot provide technical support nor can other members reply to your posts here on XDA Assist. Fortunately there is an XDA area dedicated to the Samsung Galaxy S6 at http://forum.xda-developers.com/galaxy-s6 which would be a good starting place. I suggest you post your question with all relevant details in the friendly Q&A forum there at http://forum.xda-developers.com/galaxy-s6/help where the experts familiar with your device will be best able to guide you.
Good luck!
This thread is closed.
Hello everyone, I'm in trouble.
22 Ultra is simply eating battery at indescribable levels. Yesterday we went on a trip from work, I left my home with 100%. During the day I did not touch the phone, a bit of a camera but beyond that really nothing. My battery was about 40% after about 3 hours, with no screen use at all! On the other hand, a friend at work with Xiaomi came out with 100% and after 3 hours was on 85, and he did touch the phone here and there.
I don't know how that makes sense, and it's no longer clear to me what to do to solve the problem. I debloat, deleted and disabled a number of irrelevant apps but still, the battery is being eaten. How can I solve it? Please help me!
Draining battery so fast, 20% per hour while idle is not normal, so you definitely have a problem.
It looks that there are two possibilities here:
- Battery malfunction
- Some active process in the background that is using lots of processor power constantly.
If battery is damaged / not working properly, the only solution is to replace it. Still, this doesn't look like a case of duying battery.
If you have some persistent process running in the background that you can't get rid of by debloating, it can't be stopped by restarting the phone, and its not visible in the battery usage section, i would say that factory reset is the most effective option here, since you stated that you tried to deal with it in a various ways already.
You could also wait a bit until you get chance to update to OneUI 5 / Android 13, which should solve your problem, if it's software related.
Hope that you will find solution soon
draskome said:
Draining battery so fast, 20% per hour while idle is not normal, so you definitely have a problem.
It looks that there are two possibilities here:
- Battery malfunction
- Some active process in the background that is using lots of processor power constantly.
If battery is damaged / not working properly, the only solution is to replace it. Still, this doesn't look like a case of duying battery.
If you have some persistent process running in the background that you can't get rid of by debloating, it can't be stopped by restarting the phone, and its not visible in the battery usage section, i would say that factory reset is the most effective option here, since you stated that you tried to deal with it in a various ways already.
You could also wait a bit until you get chance to update to OneUI 5 / Android 13, which should solve your problem, if it's software related.
Hope that you will find solution soon
Click to expand...
Click to collapse
I want to keep the factory reset as the last option....
Every single app that I don't need at the background I disabled from running in background.
Deleted
maor23 said:
I want to keep the factory reset as the last option....
Every single app that I don't need at the background I disabled from running in background.
Click to expand...
Click to collapse
Try to wipe your system cache.....it won't do a factory reset but might solve the issue while keeping your phone as it is.
Volume UP button along with the power button until you see Android screen
Scroll down with volume down until you reach wipe system cache and reboot
sometimes, it won't show up while you press the buttons....in that case, connect your phone to your PC/Laptop with any USB C cable and then do it.
Second solution, you can try Samsungs App Booster.....get an apk from the net. It generally helps as well.