Related
"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!
Before I begin I just want to say that I have been using Android for a while and understand wakelocks etc. I have already made sure none of my apps are causing wake locks by uninstalling them but it has made no difference.
Here are my GSam screenshots: http://imgur.com/a/1Cp9z#0
As you can see, Android System and Android OS are the culprits that are draining my battery, but the phone isn't "awake" when they are draining it, so I am not quite sure what is happening. There is no wake-lock but there is a lot of CPU usage for some reason,
Please ignore the average times shown by GSam at the bottom, I get nowhere near 5hrs screen time, I reset the histories yesterday so its not yet calculated average properly yet.
I have tried - Stock COS11S, the latest COS 12.1 and also CyanogenMod 12.1 nightlies and the recent snapshot and they all exhibit this issue even with no apps installed. Is there a ROM out there that has no issues with this stuff?
Thanks!
Same problem. No idea the solution. No matter what battery app I use to try and tell me what is going on, it's always just listed as "android system" or "system" that is draining battery. I didn't have this on sultan's build so I guess it's back to that.
I dont want to give yo spoilers...
you can try every rom here, every kernel, every mod...
it really up to your personal use... you do this 3 simple things and like me will reach 5, 6 hours SOT.
disable lte and go for EDGE
restrict privacy guards things on apps: keep awake, auto start, wake up... on every app you install
use your social network on browsers... installed apps use background...
Why do Android System, Android OS, & Bluetooth account for majority of battery drain?
On my old Galaxy S4, I found that the screen was almost always the highest battery drain -- and if I saw some app using close to or more than the screen, then I knew something was wrong. However, with my Galaxy S5 (running OptimalROM 13.1), I am consistently seeing Android System is the highest drain, followed by Android OS -- at times I'm getting only 10 to 12 hours of life, but other times I get over a day -- in both cases, it's the Android System and Android OS using the bulk of the power, never an app.
I also see some odd things like Bluetooth using nearly 10%, even though it isn't connected to any devices the entire day -- why would it use that much on standby?
I also see Google Services sometimes using over 10% -- I think that was while I had Google Maps in the background (not navigating).
Nerva said:
On my old Galaxy S4, I found that the screen was almost always the highest battery drain -- and if I saw some app using close to or more than the screen, then I knew something was wrong. However, with my Galaxy S5 (running OptimalROM 13.1), I am consistently seeing Android System is the highest drain, followed by Android OS -- at times I'm getting only 10 to 12 hours of life, but other times I get over a day -- in both cases, it's the Android System and Android OS using the bulk of the power, never an app.
I also see some odd things like Bluetooth using nearly 10%, even though it isn't connected to any devices the entire day -- why would it use that much on standby?
I also see Google Services sometimes using over 10% -- I think that was while I had Google Maps in the background (not navigating).
Click to expand...
Click to collapse
I believe that is the new normal. Unfortunately, "Andoid System" in our battery stats is nonspecific: that heading actually covers dozens of little apps and functions. With each successive generation, the phones try to have more features.
You can get a little better idea with GSam Battery Monitor: by clicking on the "Android System", it brings up another window showing you all of these processes. That doesn't mean you'll be able to do much about it, though.
I was able to solve one major problem with ridiculous battery drain by looking more closely: I have a lot of mp3s and pictures on my sdcard. Android system was scanning them, but Samsung indexing service was also scanning them for no useful purpose, and every time I rebooted it would start chewing on them again. I froze the samsung indexing service and the battery life improved by many hours per day.
Where do I disable the Samsung Indexing Service? I doubt it's causing problems, but it's useless to me.
Nerva said:
Where do I disable the Samsung Indexing Service? I doubt it's causing problems, but it's useless to me.
Click to expand...
Click to collapse
The safest way is to use Titanium Backup to "freeze" IndexService and, optionally, "S Finder". If you run into any issues, you can re-enable them easily by "defrosting" them.
Disabling them doesn't affect me at all because I use a file explorer to browse to my files directly.
OK, I installed GSam Battery Monitor a few weeks ago. Today I am dumbfounded by what my phone is doing -- after undocking it for just two hours and not using it at all, I notice it is hot in my pocket, so I pull it out and see the battery has already dropped to 78%. I check the list of open apps, and there's not much there -- my phone dialer, Camera, Chrome (with no pages open), and Messaging -- that's it.
I check the GSam battery usage, and it says the screen is using 2%, the cell radio 2%, the WiFi 1%, and the rest is "App Usage" -- I click on apps, and Kernel (Android OS) is using ~60%, Bluetooth is using 22%, and Android System is using ~10% -- so they combine for 90% of "App Usage". My Bluetooth is "on" but not connected to anything -- indeed, it is paired with only one device, which I have not even turned on in months -- the phone is getting all of its data via WiFi, which is only using 1%, yet the Bluetooth with nothing to do is using 22%!
What the hell is going on?
Nerva said:
OK, I installed GSam Battery Monitor a few weeks ago. Today I am dumbfounded by what my phone is doing -- after undocking it for just two hours and not using it at all, I notice it is hot in my pocket, so I pull it out and see the battery has already dropped to 78%. I check the list of open apps, and there's not much there -- my phone dialer, Camera, Chrome (with no pages open), and Messaging -- that's it.
I check the GSam battery usage, and it says the screen is using 2%, the cell radio 2%, the WiFi 1%, and the rest is "App Usage" -- I click on apps, and Kernel (Android OS) is using ~60%, Bluetooth is using 22%, and Android System is using ~10% -- so they combine for 90% of "App Usage". My Bluetooth is "on" but not connected to anything -- indeed, it is paired with only one device, which I have not even turned on in months -- the phone is getting all of its data via WiFi, which is only using 1%, yet the Bluetooth with nothing to do is using 22%!
What the hell is going on?
Click to expand...
Click to collapse
I know that sometimes it gets hung up if it encounters a corrupted media file while scanning for them, and that produces the symptoms you're describing. Scan your SDcard (it's fastest to do it on a computer, but there are many ways to accomplish this) for any files that are of size "0 kb" (that is, zero kb) and delete them. See if that resolves your issue.
Also try clearing cache and dalvik cache, just because that can alleviate strange problems for no discernable reason.
I get tired of talking about this issue after updating my S7 to android Nougat.
My screen-off draining too much battery. I've deleted cache partition and reset app preferences but i don't see any changes.
I've checked with GSam and it shows that Comibined App CPU used battery a lot (about 80%).
I wonder if you could help me on this issue
jack9865 said:
I get tired of talking about this issue after updating my S7 to android Nougat.
My screen-off draining too much battery. I've deleted cache partition and reset app preferences but i don't see any changes.
I've checked with GSam and it shows that Comibined App CPU used battery a lot (about 80%).
I wonder if you could help me on this issue
Click to expand...
Click to collapse
Hi mate
That information is not enough to solve the problem you need an app like BBS to find out who is the culprit....let it run for a few hours and check the logs....from there we can take action
i am also having the same problem. combined app cpu 80-90% also my download manager and mtp host, media manager are draining battery. when i disabled those, it helps but the i cant access Google play or anything on sd card.
Hi everyone,
I know battery issues have been discussed a lot, but I see others with on screen times that are far above what I am able to achieve. When I first started using the S7, the battery life was fantastic but I feel that every update has gradually worsened the battery life.
Are there any suggestions to see what is using so much battery? I've attached screenshots that show 23% remaining after less than 2 hours screen on time. I've tried a few battery monitoring apps but they do not provide much more info on "Android System" and "Android OS"...
Thank you!
Wanted to post a new screenshot... battery at 23% at just under 1.5 hours of screen on time (with auto brightness)...
Could try something like GSam battery monitor if you haven't already, seems to be a popular one
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
Have you cleared the cache from recovery yet?
Obviously last resort would be a factory reset
And if you have upgraded from MM to Nougat and have not factory reset since, that's likely the cause, always advised to reset after a major OS upgrade to prevent things like this happening
*Detection* said:
Could try something like GSam battery monitor if you haven't already, seems to be a popular one
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
Have you cleared the cache from recovery yet?
Obviously last resort would be a factory reset
And if you have upgraded from MM to Nougat and have not factory reset since, that's likely the cause, always advised to reset after a major OS upgrade to prevent things like this happening
Click to expand...
Click to collapse
Thanks, I will try that battery monitor but I think it will continue to just list "Android System" and "Android OS" rather than the detailed process that is draining so much battery...
I've tried a factory reset after upgrading to Nougat - no difference.
Android System shows only 11% usage on your screens with only 335mAh which is also 11%, so that's not the issue
Screen and Android OS are both using less than 10% each, so at most between those three that's under 30% total battery usage
Nightwind Hawk said:
Thanks, I will try that battery monitor but I think it will continue to just list "Android System" and "Android OS" rather than the detailed process that is draining so much battery...
I've tried a factory reset after upgrading to Nougat - no difference.
Click to expand...
Click to collapse
Good day.
In GSAM you have an option (Enable more stats) in 'more' menu, that gives you the apps that are battery consuming. Try that.
Hi.
I've got a similar experiance on a new S7 bought last week.
It came with Android 7.0 intalled right out of the box, so this should have been a clean install.
My top battery drains are:
Screen: 20% (5h screen on time)
Android OS: 12%
Device standby: 11%
google play services: 10%
android system: 8%
mobile standby: 8%
camera: 7%
I deinstalled several apps, and disabled a lot of automatic syncing and other things like google cast or nearby. The "ususal things" for a better battery life...
I've used a lot of camera, messaging, internet browsing, but none of these apps are on top... it's the "Android OS"...
This is strange, because I never saw this kind of beahaviour on other smartphones.
There's one Samsung app I cannot deactivate: Knox. And it's showing the same percentage of 8% like "Android System" (perhaps because it's a subset of the "system")
I don't want to use Knox, like many other private customers would.
Is there a chance to stop it?
I'm having the same problem. Today was my new low record, 10% battery left with 1h45m SOT.
Wlan has been off, BT off, 4G data on, most used app was Spotify which I used with headphones for about two hours. Before Nougat update I could get 4-5 hrs SOT.
I don't use Facebook or FB Messenger apps, and have actually disabled FB and a lot of other junk with Package Disabler Pro. Using PDP doesn't really have much effect on my battery life.
Is it safe to clear the cache if I'm not planning to do (yet another) factory reset?
CptnKork said:
There's one Samsung app I cannot deactivate: Knox. And it's showing the same percentage of 8% like "Android System" (perhaps because it's a subset of the "system")
I don't want to use Knox, like many other private customers would.
Is there a chance to stop it?
Click to expand...
Click to collapse
System apps aren't measured individually for performance reasons, so you're right, it's a subset of "System" and not necessarily using that amount of battery. Knox is a security feature. You cannot disable it without modifying the firmware and voiding the warranty. It genuinely doesn't do much if you don't use it though (but might get annoying if you're rooted).