Android OS Battery Drain - Huawei P9 Lite Questions & Answers

Battery Draining in standby after updating to Nougat B360. I had the same problem in beta version b331.
Here is What i have tried so far :-
Factory Reset, Location Off, Auto Backup Off
I am still baffled by this issue and i am having this only on nougat i never had this on marshmallow. I lose 10% overnight in 6-7 hours without any wifi or mobile data on.
Please guys help.
Firmware:- VNS-L21C185B360

it doesn't seem to be too bad, but it's beta, so there could still be some problems.

For me Android OS is top of the list even on stock Marshmallow.

Related

[PARTLY FIXED] Galaxy S4 I9515 (5.0.1 Lollipop) Battery Drain due to "Android System"

[PARTLY FIXED] Galaxy S4 I9515 (5.0.1 Lollipop) Battery Drain due to "Android System"
Hi Guys,
I had my second handed S4 since 8 November and I noticed battery draining from the beginning. It's only draining while using the phone, when it's in idle it doesn't drain the battery. Also I found out that "Android System" took about 20%-25% of the battery (about 10% more then the screen, see the screenshot).
Things I already tried:
- Wipe cache partition; made my whole device crash (all apps Force Closed).
- Due to that I had to do a full factory reset; also didn't change anything, still draining
- Yesterday I flashed CM12.1 on my device which was a huge dissaster because the screen didn't respond to anything. So I had to flash Samsung there Firmware on it and I chose 4.4.2.
- 4.4.2 was defenitly better with the battery and there was not Android System eating up my battery. But the WiFi button stayed greyed out so I coudn't use that as my daily driver aswell.
- Now I'm back at 5.0.1 and the battery drain is still there even after flashing another firmware on it using Odin.
I already ordered a new battery to see if that may fix it. There is a chance the battery is false because i can spin it around on a table and it charges even quicker then is drains. Searched the internet for days and tried everything i could find without succes so far. Hope anyone can become my best friend and let me enjoy my S4 again the way it should be.
Thank you in advance,
Can't send my screenshot because I'm a new user, will send it when able to!
UPDATE: A new battery doesn't fix anything aswell.
PARTLY FIXED: I've installed Polish Lollipop software on it, reduces the battery drain altough it's not as good as in KitKat!
I have the same problem with 9515 as Android System drains the battery so fast even while the phone is IDLE. Can you share the exact solution? Polish Lollipop? Where can I obtain it safely? Sammobile? Does it require root?
My rom's CSC is UAE (United Arab Emirates) as I beleive.

Android System Battery Draining

Hi all
I'm kinda frustrated and this is my story.
I have Edge + for less than an month (this is my firs Samsung device). I feel pretty familiar with the rooting and other installation, so after I got this device I installed PhilZ Recovery and the Arter kernel.
The device was kinda laggy and after I've tried to restart the device it stock on FRP lock and I flashed the original firmware and decided to let it chance. After that no matter what I did including reflashing
the original firmware, Android System keeps draining the battery, in one night it lose 30% with doing nothing (I guess it is some deep sleep bug). It's like CPU works half of the time while the device is turned on
(with or without Screen is ON).
My question is why actually this happen? Is it common issue with the original firmware? What can I do?
All advises will be welcomed.
Thanks!
stas-ta said:
Hi all
I'm kinda frustrated and this is my story.
I have Edge + for less than an month (this is my firs Samsung device). I feel pretty familiar with the rooting and other installation, so after I got this device I installed PhilZ Recovery and the Arter kernel.
The device was kinda laggy and after I've tried to restart the device it stock on FRP lock and I flashed the original firmware and decided to let it chance. After that no matter what I did including reflashing
the original firmware, Android System keeps draining the battery, in one night it lose 30% with doing nothing (I guess it is some deep sleep bug).
My question is why actually this happen? Is it common issue with the original firmware? What can I do?
All advises will be welcomed.
Thanks!
Click to expand...
Click to collapse
I would suggest finding the stock firmware and kernel and re flashing both clean. I have the Edge+ international version and I also rooted and flashed the Arter kernel... But i do not have deep sleep issues. I will loose probably 2-3% battery over night with sync and Wi-Fi off.
Sent from my SM-G928F using Tapatalk
Speedster_1 said:
I would suggest finding the stock firmware and kernel and re flashing both clean. I have the Edge+ international version and I also rooted and flashed the Arter kernel... But i do not have deep sleep issues. I will loose probably 2-3% battery over night with sync and Wi-Fi off.
Sent from my SM-G928F using Tapatalk
Click to expand...
Click to collapse
That exactly what I did I flashed (even a few times) the original kernel and ROM via Odin but the issue is still there.
2-3% per night it's nothing comparing to my 30% So I guess you don't have any deep sleep issue
stas-ta said:
That exactly what I did I flashed (even a few times) the original kernel and ROM via Odin but the issue is still there.
2-3% per night it's nothing comparing to my 30% So I guess you don't have any deep sleep issue
Click to expand...
Click to collapse
True but my G3 used to sleep for 8 to 10 hrs straight with 0% drain.... But oh well.
Sent from my SM-G928F using Tapatalk
Speedster_1 said:
True but my G3 used to sleep for 8 to 10 hrs straight with 0% drain.... But oh well.
Sent from my SM-G928F using Tapatalk
Click to expand...
Click to collapse
Hey. Yeah G3 is the best in deep sleep case. no drainage for a day for 6 days just %1,, but too much drainage while using tho
I'm not sure if my problem is the same as yours. But my phone was facing the same battery issue on stock firmware. I turn off everything, even with flight mode on, the battery drain was like 30-40% overnight.
After I installed gsam battery monitor, I found out that the android system was the main culprit. The android system drain amount was like 7-10 times to kernel (android os), and the apps also showed that my phone was kept awake all the time. No matter what firmware I used, the problem still persists. Fortunately, the problem was then solved when I installed arter97 kernel, or any kernels other than the stock one.
fenrir_ac said:
I'm not sure if my problem is the same as yours. But my phone was facing the same battery issue on stock firmware. I turn off everything, even with flight mode on, the battery drain was like 30-40% overnight.
After I installed gsam battery monitor, I found out that the android system was the main culprit. The android system drain amount was like 7-10 times to kernel (android os), and the apps also showed that my phone was kept awake all the time. No matter what firmware I used, the problem still persists. Fortunately, the problem was then solved when I installed arter97 kernel, or any kernels other than the stock one.
Click to expand...
Click to collapse
Yea, this is the exact my problem. Eventually I flashed Arter97 kernel and seems like the issue actually disappeared.
Thanks!
I have the same problem. No deep sleep on stock rom ! Any help ?
Thnks a lot
L

LAOS 14.1 and stock Mifavor Nougat questions

1) Is the battery properly calibrated? I mean on stock after unplugging its stuck on 100% for a while, and last 10% drops very quickly...
2) Is there [email protected] option enabled?

How's L21C432B370 build?

So how is it? Does camera work? Battery life? Does it have any bugs?
Just got 1.99 Gb update via Firmware finder.
It's excellent! Everything works, it's a lot faster than MM, it's smoother, ram management is finally OK. I advise updating via twrp (don't forget to flash the 2 zips one after the other and to flash stock recovery before the first boot. Then do a factory reset after the first boot)
Battery life is marginally (if at all) worse than MM. With location always on, mobile data always on, wifi always on, even during sleep, I lose about 1-4% overnight, in 7 hours.
Only thing I'm missing from MM is Xposed, but I can make do without it for now. I got all the essentials working, like root, Viper4Android, AdAway, Greenify.
Go for it, I will never return to MM even if they never release another N build.
Thanks for reply!
Well, i dont want to root my phone just yet.So ill update via firmware finder and then will do factory reset!
Yesterday i was on B336 and it was so laggy that i had to rollback to MM.
demlk said:
Thanks for reply!
Well, i dont want to root my phone just yet.So ill update via firmware finder and then will do factory reset!
Yesterday i was on B336 and it was so laggy that i had to rollback to MM.
Click to expand...
Click to collapse
B336 is trash. B370 could very well be a stable release.
Ok I updated. Everything works fine so.far.
Just weird ram management for example, I have opened apps Facebook, youtube, and google chrome. Its says that there is still 1 gb ram aviable but when I reopen chrome it refreshes tabs.
zgomot said:
It's excellent! Everything works, it's a lot faster than MM, it's smoother, ram management is finally OK. I advise updating via twrp (don't forget to flash the 2 zips one after the other and to flash stock recovery before the first boot. Then do a factory reset after the first boot)
Battery life is marginally (if at all) worse than MM. With location always on, mobile data always on, wifi always on, even during sleep, I lose about 1-4% overnight, in 7 hours.
Only thing I'm missing from MM is Xposed, but I can make do without it for now. I got all the essentials working, like root, Viper4Android, AdAway, Greenify.
Go for it, I will never return to MM even if they never release another N build.
Click to expand...
Click to collapse
Please post screenshot of ur Android OS battery usage. On B360 Android OS keeps the phone awake and drains the battery like hell overnight easily 10-15%
zgomot said:
It's excellent! Everything works, it's a lot faster than MM, it's smoother, ram management is finally OK. I advise updating via twrp (don't forget to flash the 2 zips one after the other and to flash stock recovery before the first boot. Then do a factory reset after the first boot)
Battery life is marginally (if at all) worse than MM. With location always on, mobile data always on, wifi always on, even during sleep, I lose about 1-4% overnight, in 7 hours.
Only thing I'm missing from MM is Xposed, but I can make do without it for now. I got all the essentials working, like root, Viper4Android, AdAway, Greenify.
Go for it, I will never return to MM even if they never release another N build.
Click to expand...
Click to collapse
You're lucky my camera doesn't work so am back to MM
Sent from my HUAWEI VNS-L31 using Tapatalk
Usama707 said:
Please post screenshot of ur Android OS battery usage. On B360 Android OS keeps the phone awake and drains the battery like hell overnight easily 10-15%
Click to expand...
Click to collapse
I recently charged so I don't know how much use this is going to be, but I'll post another screenshot in the morning.
This is over night.
zgomot said:
This is over night.
Click to expand...
Click to collapse
Wow its really impressive. Do u have an SD card inserted? On b360 Android OS keeps my device awake for hours overnight even on airplane mode
Usama707 said:
Wow its really impressive. Do u have an SD card inserted? On b360 Android OS keeps my device awake for hours overnight even on airplane mode
Click to expand...
Click to collapse
Yes, I use a class 10 32gb micro sd card.
zgomot said:
Yes, I use a class 10 32gb micro sd card.
Click to expand...
Click to collapse
This is Android OS consumption overnight tried all kinds of reset but nothing fixes this. In Wakelocks i can only see powermanagerservice.wakelocks or powermanagerservice.display
Usama707 said:
This is Android OS consumption overnight tried all kinds of reset but nothing fixes this. In Wakelocks i can only see powermanagerservice.wakelocks or powermanagerservice.display
Click to expand...
Click to collapse
Maybe you should try b370.
zgomot said:
Maybe you should try b370.
Click to expand...
Click to collapse
Unfortunately its not available for C185 region
Cant upgrade from b170 to b370/371
zgomot said:
It's excellent! Everything works, it's a lot faster than MM, it's smoother, ram management is finally OK. I advise updating via twrp (don't forget to flash the 2 zips one after the other and to flash stock recovery before the first boot. Then do a factory reset after the first boot)
Battery life is marginally (if at all) worse than MM. With location always on, mobile data always on, wifi always on, even during sleep, I lose about 1-4% overnight, in 7 hours.
Only thing I'm missing from MM is Xposed, but I can make do without it for now. I got all the essentials working, like root, Viper4Android, AdAway, Greenify.
Go for it, I will never return to MM even if they never release another N build.
Click to expand...
Click to collapse
Emmmmm.
Maybe you can make short tutorial how you upgraded it?
Couse I tried through FF, but it doesnt work :/
Also tried three buttons method, but then it says that "software version is incompatible with current version" :/
GeillGitrell said:
Emmmmm.
Maybe you can make short tutorial how you upgraded it?
Couse I tried through FF, but it doesnt work :/
Also tried three buttons method, but then it says that "software version is incompatible with current version" :/
Click to expand...
Click to collapse
This is how I did it: https://forum.xda-developers.com/showpost.php?p=71764827&postcount=5
I updates via firmware finder! Works fine. Battery good, camera good, Ram good.
demlk said:
I updates via firmware finder! Works fine. Battery good, camera good, Ram good.
Click to expand...
Click to collapse
I think, that's that gonna be a stupid question, but still...
Does my phone have to be rooted?
Nope, it doesnt.

G950F root battery drain

I'm posting this once again hoping one of you is experiencing the same problem.
The gist of the story is, when I root my phone, it drains battery quick leaving me with 2-2.5h SOT. When it's not rooted, it goes back up to 6h SOT.
This is not a rogue app problem, it's not a kernel problem, it's not a media scanner problem, it's a ROOT problem. And it stems from the days of Oreo, all the way to now where I'm on the latest OneUI build (February patch).
Somehow, when magisk or SuperSU is installed, it just drains battery quick. Does anyone have the same problem?
For clarification: tried safe mode, both rooted and u rooted with the same outcome: more drain on root than on non-root. Also tried COMPLETELY formatting the phone, and go from there with absolutely no third party apps installed; same outcome.
Thanks.

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