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[Q] I9505 4.4.2 android system battery usage

Hi,
Ever since I upgraded my I9505 to 4.4.2 I've noticed that one of my key battery consumers was Android System (not so on 4.3 or 4.2.2, or whatever I was running before). Right now I'm on the latest DBT ROM, but still the same issue. I've been reading numerous threads on this, tried lots of things even formatting my SD card from within the phone, but still same story. I have Google location services disabled (major issue before), Google Now hot word detection is off, S Voice voice activation is off - nada. I am running stock so getting a wakelock report is a no go. I get decent time on the phone (up to 18 hours per charge), but still want to figure out why Android System is using so much battery (it seems to be CPU time related anyway - phone is properly entering deep sleep when it should). Below is a screenshot of what my battery graph looks like about 2 hours after unplugging the phone from the charger with normal usage. Thanks for ideas!
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Any ideas? In the meantime I've done a factory reset, disabled Samsung's bundled apps (e.g. S Voice), tried disabling location services altogether - still same story nothing seems to help. In OS monitor I see a constant Android system activity between 1-9%. Average is around 2-3% but it never stops.... Sadly with the KitKat permissions being what they are I can't get more details.
Here's a graph from today 3 hours after a full charge with minimal phone usage:
Clearly something is going wrong here...

Breach1337 said:
Any ideas? In the meantime I've done a factory reset, disabled Samsung's bundled apps (e.g. S Voice), tried disabling location services altogether - still same story nothing seems to help. In OS monitor I see a constant Android system activity between 1-9%. Average is around 2-3% but it never stops.... Sadly with the KitKat permissions being what they are I can't get more details.
Here's a graph from today 3 hours after a full charge with minimal phone usage:
Clearly something is going wrong here...
Click to expand...
Click to collapse
Hi ,
With this information is hard to tell what is going on , you need an app like Better Battery Stats
http://forum.xda-developers.com/showthread.php?t=1179809
Let it run for 3 to 4 hours at least and then see who is running wild
Review you settings , location , mail , FB......

Thanks. As I am running non-rooted 4.4.2 I can only see kernel wakelocks which look normal to me:

Breach1337 said:
Thanks. As I am running non-rooted 4.4.2 I can only see kernel wakelocks which look normal to me:
]
Click to expand...
Click to collapse
33 min is not enough time to see what is going on let it run for 3 or 4 hours ...

Upgraded to I9505XXUGNK4 (DBT) today and it looks like it helps!

Breach1337 said:
Upgraded to I9505XXUGNK4 (DBT) today and it looks like it helps!
Click to expand...
Click to collapse
For posterity's sake - the firmware didn't fix the problem. My Android System, and to some extent Android OS, usage was still pretty bad. After hours of trying various things I've got it though - in my case I had to disable Samsung's Unified Daemon (EUR) and now once more my top consumers are Screen and phone idle! Hope this helps folks.

N910F, "Android OS" battery drain - can't determine the cause

This started happening about a week ago... I didn't install any new apps in particular. I've attached screenshots to the post.
Screen-on time is a little below an hour in these screenshots.
As you can see Android OS and Android System are at the top of the list by a long shot. Android System seems "normal" in the sense that it has 58mn of CPU time and only 18mn of wakelocks (as reported by the built-in battery menu).
Android OS however kept the phone awake for 6h11 which seems like a lot. I'm not rooted, so I did the ADB USB trick in order to pull stats out of Wakelock Detector, and all of the apps clearly don't add up to six hours. Especially not the usual suspects like Google Services, Facebook, etc.
Diagnosis shows a LOT of system processes, and I'm not sure if that means 1) it's all good as far as user land goes (I don't have any weird apps) 2) there's a system process gone rogue for some reason 3) the cause isn't showing up 4) something else???
Does anyone have any idea what's going on?

I have the same issue. Tried greenifying everything. No dice. I reboot, phone fine, then stays away. I will say that my battery life is good though, but this riddle is driving me nuts

Here is my issue, look at away bar.
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Jeffruby said:
Here is my issue, look at away bar.
View attachment 3193010
Click to expand...
Click to collapse
Me too - 910F - im on Lollipop, but struggling to make it through a day at the moment.
Checking my Battery Graph is the same Story - my phone seems to be Awake constantly.
Seems Android System is using it....
Anyone have any ideas?

I can only recommend rooting your phones and change roms or kernels.
TW is heavy on battery and if you change to a CM rom the battery life will increase dramatically.
I have rooted all my phones since the very first android phone ever made and i cannot own a non rooted device as the freedom of rooting is just to awsome to ignore.
Every time i have battery issues i ether change my rom or kernel and then my issues goes away...

Can't root Verizon unfortunately

Hmm. Try this. Unchecked under advanced wifi, the option to let Google and apps use wifi, even when wifi off. Since then, 12 hours, I have had normal sleep. Did reboot after Unchecked. . Premature to say I fixed it, but so far so good.

Update. Since unchecking that wifi option, phone sleeping normally still.

Update #2- after 36 hours. It's back! Awake constantly. Unreal

Jeffruby said:
Update #2- after 36 hours. It's back! Awake constantly. Unreal
Click to expand...
Click to collapse
I can't think of a reason it would do this... I feel like an iphone owner

Ironically I see no difference in battery life.... Hahaha. But driving me nuts.
I get through entire day... About 3.5 screen hours on. At 7pm I'm at 20% typically. Maybe that's bad?

Jeffruby said:
Ironically I see no difference in battery life.... Hahaha. But driving me nuts.
I get through entire day... About 3.5 screen hours on. At 7pm I'm at 20% typically. Maybe that's bad?
Click to expand...
Click to collapse
I'm usually around 40%. but maybe our app-age is different.

I've updated the Google Play Services to the new version 7.0.87 and this issue seems to have gone.
Find the apk here

paulrgod said:
I've updated the Google Play Services to the new version 7.0.87 and this issue seems to have gone.
Find the apk here
Click to expand...
Click to collapse
i have installed the version after the one you have posted but facebook still stays keep connected in 3g.
i can t fix the problem (in wifi is ok)

marci4na said:
i have installed the version after the one you have posted but facebook still stays keep connected in 3g.
i can t fix the problem (in wifi is ok)
Click to expand...
Click to collapse
Have you tried to block background connection on facebook?

qwertyup88 said:
Have you tried to block background connection on facebook?
Click to expand...
Click to collapse
not yet ill do. you are ritght!
i m just wondering why with kitkat you dont have to do that and you had 6 hrs of screen...
still not convincing me this lollipop

marci4na said:
not yet ill do. you are ritght!
i m just wondering why with kitkat you dont have to do that and you had 6 hrs of screen...
still not convincing me this lollipop
Click to expand...
Click to collapse
Same for me ... i also have huge connection time in Google services and App Google, but if i disable those i'm unable to receive whatsapp messages in 3g or lte...

fortunately for me the only issueis with facebook.
but i have disabled s voice, all google app sinc ecc ecc...
still not enought to have back hrs of screen of kitkat.
hate lollipop....notification enormous , no silence mode!
cmon1!!!

marci4na said:
fortunately for me the only issueis with facebook.
but i have disabled s voice, all google app sinc ecc ecc...
still not enought to have back hrs of screen of kitkat.
hate lollipop....notification enormous , no silence mode!
cmon1!!!
Click to expand...
Click to collapse
Yeah, that silent mode thing is a pain...

Oh my god !
How can i fix this?
Sent from my SM-N910F using XDA Free mobile app

When phone is in Doze mode should i be seeing any wakelocks in the battery graph?

Hello i have posted this over on Reddit but thought that i may get more info on the problem on this site.
Sorry for the long post.
I am trying to find out what is causing my battery to drain 10-15% over night.
i have tried a factory reset 3 times and nothing has fixed it but 3 hours ago i done one again for the 4th time and so far it is still at 100% and i haven't hardly touched the phone so i am not sure if the reset has finally worked ( this time i did uninstall whatsapp too)
My question is, in this 3 hours of hardly touching the phone it is still at 100% but it is still showing being awake quite a few times in the battery graph and i was wondering if that means it hasn't entered doze because it still shows wakelocks? i hope this makes sense
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People on reddit think it may be a wifi wakelock issue and have told me to try it on 4g to see if i still get any wakelocks which i will try for the next few hours.
Also after doing a factory reset does the phone need a few days or cycles to get the battery to working properly?
I should also note that for the past 3 or so days i have been trying different tests in the night when i am sleeping to see if it is an app causing the battery problem. I only have 3 3rd party apps on my phone which are reddit relay, whatsapp and tapatalk.
1. The first night when i noticed the drain and all 3 were on the phone it dropped about 10-15%.
2. The second night i only had the apps that came with the phone (they all updated first but no apps were opened like chrome so i dont know if they were set up and i was signed in) and it dropped 2%
3. the third night i removed tapatalk and kept relay and whatsapp and it dropped 10%
4. Today 3 hours ago i have removed whatsapp and the battery stayed at 100% for just over 3 hours until i picked it up and started using reddit and chrome so it seemed to not drain as fast but i still have all those wake locks.
Do you guys think it is the wifi wakelock problem or maybe an app? if it is the wifi problem will a new phone fix it as reboots and restarts with this phone doesn't seem to or if i get a new phone will it happen to that one and its actually a problem with my wifi?
Again sorry for the very long post, i am just looking to see if i can get to the bottom of this before my 15 days are up to get a refund from google.

Sorry to hear about the battery issues. Lots of complaints since the update from 6 to 6.01.
I think you have until January 22nd to return the phone, if you purchased it recently from the Google store.

lew87ys said:
My question is, in this 3 hours of hardly touching the phone it is still at 100% but it is still showing being awake quite a few times in the battery graph and i was wondering if that means it hasn't entered doze because it still shows wakelocks? i hope this makes sense
Also after doing a factory reset does the phone need a few days or cycles to get the battery to working properly?
Do you guys think it is the wifi wakelock problem or maybe an app? if it is the wifi problem will a new phone fix it as reboots and restarts with this phone doesn't seem to or if i get a new phone will it happen to that one and its actually a problem with my wifi?
Click to expand...
Click to collapse
Not sure if you are rooted or not, but if you are then I highly suggest downloading the Wakelock Detector app. If you are not rooted then I suggest rooting because it is the fastest way to get down to the root cause of the problem (pun intended). It will show you each process/app that wakes the phone from most to least.
Without downloading that you will just be playing a guessing game of uninstalling 1 app at a time, which could take forever. So save yourself the trouble and download Wakelock Detector. I think it is pretty safe to say most of the wake locks are from apps, so please do not return the phone because of that. I do not think a hardware issue could affect software wakelocks, and if it was a stock software bug, most or all people would be experiencing it. Good luck, feel free to report back to let us know what you found with it if you do root and download it.

Huge battery consumption, help needed

Hi all,
I am very satisfied with my device except for the battery life. I always had like 3-4 hours SOT. I was not happy but it was OK.
Lately I started charging the device every day after work (I would come home with dead phone after only 8-9 hours of it being unplugged).
So I thought the battery is defective, I must change it... and I did change it yesterday. The thing is that even the new battery behaves almost the same. It approved somewhat and now I will return home with 10% battery instead of dead phone 1 hour ago. But still the battery is terrible...
Can anyone help me, share some advice on how to improve it? I have disabled many software (even facebook), disabled location... did everything I could think of.
I am thinking some app is drawing the juice but cannot put my finger on any of them.
Some screenshots are attached that might help with your tips/advices.
Thanks!
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Are you rooted? On nougat? If so get background restrictor APK here on XDA and kill background apps and tasks so they can't run if you do not open them. Lower screen brightness. Install kernel auditor and shut off cores 4 and 8.

ljesh said:
Hi all,
I am very satisfied with my device except for the battery life. I always had like 3-4 hours SOT. I was not happy but it was OK.
Lately I started charging the device every day after work (I would come home with dead phone after only 8-9 hours of it being unplugged).
So I thought the battery is defective, I must change it... and I did change it yesterday. The thing is that even the new battery behaves almost the same. It approved somewhat and now I will return home with 10% battery instead of dead phone 1 hour ago. But still the battery is terrible...
Can anyone help me, share some advice on how to improve it? I have disabled many software (even facebook), disabled location... did everything I could think of.
I am thinking some app is drawing the juice but cannot put my finger on any of them.
Some screenshots are attached that might help with your tips/advices.
Thanks!
View attachment 4421981 View attachment 4421982 View attachment 4421983 View attachment 4421984
Click to expand...
Click to collapse
uninstall chrome. Then try accubattery (better bcause after android 7, they join all in android system to mask each app consumption. If after this you still can't find out where's the problem, start the phone in "safe mode". Even the consumption is better in this mode you must do a full wipe in recovery mode (vol up+power+home) and after this, reinstall one app each time and see after reinstall the second one and so on until you find out in which app is draining the battery
If you want you can starting by disabling background data in settings but I think isn't the clearer way to find out

This is going to surprise you.
I've had this phone for years and I've tried everything - and the BEST result is when you DON'T DO ANYTHING except disable Facebook and Instagram, and any Google Apps you don't use.
Do not tamper with anything else.
I figure that Samsung tunes this phone so tightly that if you leave it alone it operates as it should.
Anytime I disabled anything else, battery life suddenly and drastically reduced.
The phones runtime software kicks in and if you have disabled something it checks routinely, it will keep the phone awake constantly looking for a ping back from that process.
I just went through the whole process again meticulously, App by App.
Also DO NOT enhanced messaging OR the device antivirus. If you have, you must reset and then train yourself not to engage these too regardless of how hard The phone tries to persuade you!
Then - the battery life becomes like a normal phone which means you'll still need to charge everyday but it will take you through a full heavy day... And this is fantastic!
Honestly try it and you'll see what I mean. The S6 edge plus is so finely tuned, anything you block will start a feedback loop.

I had similiar problems , the way i fixed it, i disabled/uninstalled all samsung applications what i dont use, i disabled/uninstalled all google applications what i dont use. Cold weather (like -20C) will affect the battery life too.
Disable / uninstall apps you dont need. That helped me a lot and got even more battery life while at stock nougat rom with all updates installed.
try wiping cache from recovery and reboot your phone.
I hope this helps you

Has my battery degraded or its a software issue?

My battery lately has been draining really fast from doing minor tasks. 2-3 months ago I upgraded to the latest MIUI 11.0.4 and noticed a slight increase in drainage but nothing too concerning. For the past few days though, it has become really bad. An example is how today I charged my phone to 100 percent and within 8 hours it is now already down to 75 as I am writing this post.
What I did:
Charged it.
Left it idle for 4 hours
Browsed some Facebook feed for around 15 minutes
Watched YouTube videos for a total of 15-20 minutes
Left idle again for another 2 hours
Just now spent another 20 browsing some Reddit posts
I usually keep my mobile data as well as the WiFi connection turned off all the time and only turn them on when I need to use the phone. I don't have any IM apps running in the background all the time syncing messages except Kik and Snapchat for whom I've set a battery saving modes to close whenever not in use but again, like I said my internet connection is always switched off. I keep my screen brightness low all the time as well btw.
I usually charge it as soon as it goes down to 30-40%
Pretty sure tomorrow after a whole day of work having it sit idle and then doing some minor internet browsing its gonna drop to 30-40.
Here's a screenshot of my battery stats:
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Not sure if this is normal as I remember it draining way slower than it does nowadays. I know that this phone is known for having a good battery life. Any suggestions on what I should do? Is there warranty for the battery in case it turns out to be faulty? I've been using this phone for a little over 6 months now.

I have terrible wakelock on 11.0.4.0.
Non rooted and I want to keep it like this.
Is it a common issue and should I go back to MIUI 10?
Sent from my Redmi Note 7 using Tapatalk
View attachment 4935287

the worst cell phone I bought

osssinator said:
I have terrible wakelock on 11.0.4.0.
Non rooted and I want to keep it like this.
Is it a common issue and should I go back to MIUI 10?
Sent from my Redmi Note 7 using Tapatalk
View attachment 4935287
Click to expand...
Click to collapse
Hi, bro!
I had this wakelock in all versions (Android 8 or 9) I tried several times to find out which app does this, installing monitors made for it and so far nothing ... But yesterday I reset my RN7 and the wakelock didn't come back. I imagine it is an app that has not yet performed the initial configuration.

switch aosp(no gapps recommended)
i get 12 hours plus sot

afranioneto said:
Hi, bro!
I had this wakelock in all versions (Android 8 or 9) I tried several times to find out which app does this, installing monitors made for it and so far nothing ... But yesterday I reset my RN7 and the wakelock didn't come back. I imagine it is an app that has not yet performed the initial configuration.
Click to expand...
Click to collapse
Multiple apps. Of course I tried to fix it by deleting a couple of apps such as restricting the background activity in the most of the rest but I only succeeded to reduce the wakelock from 98% to 50%. The bad thing is, that if You do hard reset it's a temporary solution. Wakelock will return in maximum one month. So what is the solution? Returning to Miui 10 or AOSP rom if You want to run latest Android version?
Sent from my Redmi Note 7 using Tapatalk