Database Info

Android System keeping the Xoom awake?

I noticed this recently so I'm guessing it might be related to an app but now my Android System keeps the Xoom awake always even with the screen off. Anybody else with the same problem? If so what apps do you have installed? Maybe we can find the common one amongst us that is causing this. Luckily the battery is so good that this isn't a huge issue but I want to fix it.
Sent from my Xoom using XDA App

Having the same issue. Wifi only model, I had wifi off for my 1hr commute to work, and it was awake the entire time.

k0smo86 said:
Having the same issue. Wifi only model, I had wifi off for my 1hr commute to work, and it was awake the entire time.
Click to expand...
Click to collapse
It's definitely an app or something because I know in the past it hasn't done that at all. Can you list what apps you're using? Or if yours is new enough maybe do a factory reset and see if that fixes the problem?
Either way it's definitely software not hardware.
P.S. I have a Verizon XOOM.

What do you guys mean by the xoom staying awake? the screen not turning off or the android system not going into a sleep/standby mode.

spitfirerx said:
What do you guys mean by the xoom staying awake? the screen not turning off or the android system not going into a sleep/standby mode.
Click to expand...
Click to collapse
If you go into Settings -> About -> Battery and you click on Android System it will say how long it's been awake. Mine currently has an awake time that equals the total time the Xoom is off the battery - i.e. it never is not awake. The screen turns off fine and the battery usage is low but not as low as if the Xoom was sleeping. When it's sleeping it goes into a lower power state but since Android System is keeping the XOOM awake it can't do that. Other than reduced battery there is no other problem with it though.

Under "Included Packages" for Android System in battery usage the following is listed:
PGM System
Settings
Google Backup Transport
Android System
Settings Storage
System UI
Motorola Location Proxy Service
In the main battery usage list nothing is above 3% usage. 5h 31m on, awake for 5h 11m.

Screebl Pro!
I am long time fan and user of "Screebl Pro" By Key Labs. It takes into account the screens orientation and keeps your device (Tablet or Smartphone) backlit. Its great.

I did a factory reset. The problem seems to be about 99% better. There is still awake time under Android System, but it's verrrrry minimal and not even close to the amount of time the display or system has been on. Leaving the Xoom idle for a while to check once again.

I was sort of dreading that. Please check often after you install apps so we can see if there's a particular app that's causing that.
Sent from my ADR6300 using XDA App

No apps are over 1-2% after being on for 4 hours. 4 min of awake time under Android System. Looks like the issue is solved.

It turned out being Weatherbug. I uninstslled and reinstalled and I'm back to being able to sleep.
Sent from my Xoom using XDA App

After much testing it turned out to actually be having more than one CNN stack on my homescreen. Don't ask me why this causes this problem but it does. Weatherbug seems to be ok. I hope we get Android updates soon to address these bugs.
Sent from my Xoom using XDA App

k0smo86 said:
No apps are over 1-2% after being on for 4 hours. 4 min of awake time under Android System. Looks like the issue is solved.
Click to expand...
Click to collapse
It's resolved, but not really solved. If anyone notices an underlying application or setting causing this, please be a dear and update this thread?

I just noticed this today. 100% wake time even with long stretches of the screen off. Happened before installing weathebug. I do have 1 CNN stack on my home screen gonna remove it and test.
Very perplexing. You will see much better battery life if the system actually sleeps lol.
Edit: Yep looks like it was the CNN widget. Took it off the home screen and the Xoom started sleeping. Weird.

I FOUND IT! Listen up folks there is a bug in the latest CNN app that was released recently.
When you have 1 or more CNN widgets and you click on a story VIA the widget it launches a service called BangoAnalyticsService or something and THIS is keeping the XOOM awake. Very easy to test, if you go into Applications -> Running Services -> CNN and terminate just the Bango service you will see the XOOM sleep immediately.
Good news is that you can launch stories using the CNN app (NOT the widget) and it will not launch this service so XOOM will sleep.
I've already reported this issue but PLEASE can you all do the same.
Here is how.
1. Make sure you have latest CNN app
2. Have at least 1 widget on your homescreen
3. Launch a story from the widget
4. Go back to home
5. Go to Settings->Applications->Running Services
6. Click on CNN (1 process, 2 services)
7. Click on BangoAnalytics or whatever it is and click on "REPORT"
Put a nasty comment in there for good measure too!!
Glad at least I know what it is. More people that complain, the quicker it will be fixed.
Workaround: Logout of CNN app if you're logged in. Now it appears you can use the CNN app (not the widget) and it will not launch the Bango service that is the culprit. Let me know if you see other issues.

Is there any concern in "Tablet idle" being at like 3%?

Accuweather Bug
I can confirm that the application Accuweather was keeping my wifi xoom awake. Please note that I checked the in app settings for a run in background or update interval setting which it did not have. Once I uninstalled the problem ressolved.

mobilehavoc said:
I FOUND IT!
Glad at least I know what it is. More people that complain, the quicker it will be fixed.
Workaround: Logout of CNN app if you're logged in. Now it appears you can use the CNN app (not the widget) and it will not launch the Bango service that is the culprit. Let me know if you see other issues.
Click to expand...
Click to collapse
Just did this. This was the cause of my 100% wake times. Amazing though I still got 9hrs of life on the first 50% of my battery weven with constant awake lol.
k0smo86 said:
Is there any concern in "Tablet idle" being at like 3%?
Click to expand...
Click to collapse
nope.

Thank you! CNN widget was the culprit for me as well.

Device keeps to be ON and Heats up really bad and drains battery
Mine Xoom after the ICS 4.0 keeps running Android OS @ 90% use and keeps screen on and drains battery within 2 hours.
After hard reset, it seem to be disappeared, but once I've installed some app updates and minimum apps that I had to use, same thing happening.
So far after removing the DrawEverything app, it works better but have to test it and see further.
It is weird, and seem to me some sort of the memory leak causing device to enter into this state.
I will call Motorola and see if I could get any additional information.
Thank you for everyone posting an updates here.

Android System consuming battery

I have been obessing over my battery stat page and am trying to figure out what exactly "Android System" is. It is usually consuming the highest percentage of battery power. I have tried everything to figure out what action exactly makes Android System get added to the battery stats page. I have disabled everything, every radio, syncing, deleted all widgets. I hardly have any apps as it is. It just seems rather inconsistent because sometimes Ill check the page after making a call and will find that Voice calls has consumed a small percentage of battery and Android System isn't even on the list. Other times I will take it off the charger and make a 30 minute call, but when I check the stats page 70% battery was used by Android System and only 3% was Voice Calls.
Can anyone tell me exactly what triggers Android System so I can make sure I cut down on its battery usage in any way possible
Sent from my Microwave

I assume you are looking in the settings > about phone > battery. You can select android system also and it will tell you more info.

Agoattamer said:
I assume you are looking in the settings > about phone > battery. You can select android system also and it will tell you more info.
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Click to collapse
I see that but under more info its not very clear about what's using the batt.
Sent from my Microwave

http://img.photobucket.com/albums/v673/seh6183/screenshot-1312932238053.png
Sent from my Microwave

Anyone have any comments on this?
Sent from my Microwave

Did a battery calibration and now android system isn't the number 1 thing consuming battery as usual. Weird:
http://img.photobucket.com/albums/v673/seh6183/testshot.png
This seems to be more in line with what normal battery usage should look like in my opinion.
Sent from my Microwave

I had this problem too until I did a calibration. Now cell standby consumes over 50% of my battery regularly, with android system consuming only 2%.
Sent from my HTC Inspire 4G using XDA App

Yea I did a calibration and all is well
http://img.photobucket.com/albums/v673/seh6183/screenshot-1313102466360.png
Thank you
Sent from my Microwave

Aaaaaaaaand were back LOL
http://img.photobucket.com/albums/v673/seh6183/screenshot-1313118381659.png
Sent from my Microwave

Its still occurring
What would you guys do?
Android system will occasionally use CPU as well, as shown in the following screenshots. Also! My good buddy let me see his Droid x recently. He had 42% battery life left and android system had only taken up 4% of that.
I'm pretty upset about this.
http://img.photobucket.com/albums/v673/seh6183/screenshot-1314312490137.png
http://img.photobucket.com/albums/v673/seh6183/screenshot-1314312473018.png
http://img.photobucket.com/albums/v673/seh6183/screenshot-1314312512785.png
Sent from my Microwave

If you asked me I would say all your values are a little screwy. Do you even turn the screen on, on your phone and use it? If you use your phone the Display should be by far the most used. To me it looks like you physically use your phone very little. That is why Phone idle and Android System seem to be the higher numbers.
Guessing you have many accounts syncing in the background. One of the biggies for Android System. So its not that Android System is using so much, the rest of the processes are using so little.

Oddly enough the same thing started happening with my phone recently too.
@Agoattamer
The system wouldn't eat most of the charge in less than 8 hours in normal circumstances. Also about your question concerning accounts, while I'm not seh6183, personally I only have my email account synchronizing and the very same thing happens.
Something is causing the CPU to remain awake, in my case stuck at 800MHz.
The factory reset will most likely solve it, but it'd be best to find the culprit to just try and rectify a specific anomaly rather than reinstalling the whole system.
Has recently any core Google apps been updated? Email, Maps, anything?

I do agree that in 8 hours of non physical use your battery should not be going dead. So I couldn't sleep last night and I did some google searching. Here are some things I found out.
Do you have Googles Goggles installed? Seems it may have a bug where it keeps the camera on even when the phone is supposedly asleep.
Seeing that seh6183 always has his wifi active maybe it has something to do with wifi. I found this from Juri's TechBlog
couple of days ago I finally got the eagerly awaited system upgrade to Gingerbread on my Nexus One. The update went pretty well, although some Nexus One users reported about problems with the updating process. The only thing I noticed is that Dropbox didn't work after the upgrade.
A re-install solved the issue. All-in-all Gingerbread is great. Beside UI enhancements it feels also faster than Froyo. However, after trying it for two days now, I noticed a substantial increase in battery consumption. By looking at the system battery stats (Settings -> About phone -> Battery use), Android System was listed to consume 23% of the battery .
Apparently the problem is a bug in Gingerbread version 2.3.3 (you know there is 2.4 as well) on how the system handles the Wifi adapter. If you go into your Settings -> Wireless & Networks -> Wi-Fi settings, press the menu button and click on "Advanced", you'll see a menu entry "Wi-Fi sleep policy". Gingerbread seems to have a problem when that option is set to "When screen turns off". While that may sound to be the most energy-saving option, the bug turns it into a battery killer. If you switch the option to "Never", the Android system will only consume ~3% in the battery stats.
Obviously, in addition to this, the best battery saver is to just turn Wi-Fi off when you don't need it . Caution, if one of the future updates fixes this problem (which I strongly hope), you have to set the option back again.
Click to expand...
Click to collapse
Something I didn't see but killed my battery on my windows mobile phone was instant messengers. Do you use any apps that are for instant messaging.
Found this thread also talking about the same bug with wifi
http://code.google.com/p/android/issues/detail?id=15057
So it seems that if you (cmdr001) also are a full time wifi user, you may be affected by the same bug. Check your wifi sleep policy and adjust your settings to "Never".
Install a battery monitor app from the market or spare parts to see what is using your battery. Install Juice Defender to stop all that excessive useage.

Excellent find!!!!!
Just switched the sleep policy to "never" (which ironically I've always used until very recently). Ill return with results after about 5 hours. The only thing is that I'm on android 2.3.5 not 3.3 so we will have to see if the bug was affecting me.
I also don't have Google goggles. And to the above poster, my phone regularly went into deep sleep so it wasn't my CPU that was staying active.
Oh and I've been using watch dog to look for rogue programs for the last 24 hours. I haven't got a single alert.
Sent from my Microwave

I guess the first question should have been what ROM were you using and to try a different one then. Needless to say it still has 2.3.3 components in it. And if you recently changed that setting then my bet is thats the issue. Goodluck.
Watchdog may alert you if you are using too much cpu at one time but I don't think it will let you know what is constantly using the cpu.

Ok there's a glitch somewhere in the battery tracking. I just checked it and android system was consuming 12% battery. I placed one 17 minute phone call and re checked it, I then had 57% android system consumption.
No way.
I'm using a cm7 nightly and I'm about to flash the stable version with a different kernel. Ill do a full wipe as well.
Sent from my Microwave

You could check your wakelocks.

After recharging my battery to 100% and wiping the battery stats, my android system consistently uses 2% of the battery, while the display sucks up around ~40%.

[Q] Android OS battery drain issue or battery is about to die??

It has been 2 years I bought this phone.
Nexus S i9023 world wide edition (code name crespo)
Generally it gave 24 hours battery backup. But now it gives only 12 hours backup hardly!!.
I tried all roms like cyanogenmod, slim rom, AOKP and original too.
Screens are attached.
let me know if you have any idea.
let me know if you want more information.
I am on wifi only in office, otherwise wifi and data plan is off.

U get high android os on all rom ?

If bought the phone two years ago, its the battery for sure. After 24 months and several hundred charges its not going to last anywhere near as long as when you first got it
Sent from my Nexus S 4G using Tapatalk 2

Android os is too high. Something is keeping your phone awake. I suggest greenify and hibernate all facebook, maps etc.. Also, some chat programs can be problematic if you dont use original hangout or google talk.

[SOLVED!!]
i have this problem with my galaxy grand phone ,the battery discharges in 20hr , default OS was 4.1.2 official samsung , i changed my rom into a slim custom rom based 4.2.2 , but the battery has same problem again , Android OS battery Usage Was 80% !!!! and screen usage just was 9% !
my installed software :
Viber
WeChat
MyKet {Like Android Market}
Weather Widget
i used wifi 1-2 hour in a day ,
=================================
[SOLVE]
first go to Settings -> Developer Options -> Apps Tab -> checked Don't keep activities
set brightness to auto
then go to location services -> off access my location
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
now go to application manager -> Running Tab -> Force stop some apps with extra ram usage like settings
my phone just uses 5% battery in 13hr sleep mode ; ENJOY!

ohhacker said:
i have this problem with my galaxy grand phone ,the battery discharges in 20hr , default OS was 4.1.2 official samsung , i changed my rom into a slim custom rom based 4.2.2 , but the battery has same problem again , Android OS battery Usage Was 80% !!!! and screen usage just was 9% !
my installed software :
Viber
WeChat
MyKet {Like Android Market}
Weather Widget
i used wifi 1-2 hour in a day ,
=================================
[SOLVE]
first go to Settings -> Developer Options -> Apps Tab -> checked Don't keep activities
set brightness to auto
then go to location services -> off access my location
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
now go to application manager -> Running Tab -> Force stop some apps with extra ram usage like settings
my phone just uses 5% battery in 13hr sleep mode ; ENJOY!
Click to expand...
Click to collapse
All I know is Android OS shouldn't consume 80% of battery when screen is off.
Wakelock detector app always giving me 80% awake and 20% deep sleep. and Phone was having kernel awake issue.
Two days ago I switched back to stock rom with no extra apps installed. and the issue was the same.
What I noticed that I turn of the CRT screen off option in Slimrom 4.2 build 8. and when I come back to stock rom, Obviously I did full format with bootloader, radio and recovery etc.. but CRT screen off was not working. What I guess is if we formatted /system /cache /data dalvik cache etc.. CRT off screen off should be reset and it should be turn on by default, as it was on when I purchased it!!!
So I guess there should be something like OEM unlock option which persist even you do full format. Some of the settings which is causing my kernel for keep awaking.
So I again planned to come back to Slim rom (As I noticed it is very active for my device). And the CRT screen option is working correctly now.
But my original problem of Android OS was still there. in 2 hours of screen off, kernel was awake for all the time, only 4 minutes of deep sleep.
I checked wakelock detector and saw mmc1_detect count as around >1800!!!!
I come back to XDA for solution and found that it could be for faulty SD card. Solution suggested is to go to setting -> storage -> unmount sd card and restart your phone or something (I don't remember actually). But since Nexus S has no external SD card, out of 16 GB, 1 GB is for phone internal and about 13 GB is for USB storage. But how can we unmount it??? Additionally even if I unmount, there is no use of smart phone, as photos and all important things are in SD card. I wasted 1 hour for finding an app that can toggle SD card mount/unmount but no success.
I noticed that my phone has some issue with charging point. It started after I used nexus 7 charger into it. On my laptop usb connection works good, but at my office I checked on 2 PCs but USB is not recognizing it. (Sometime works something don't). Another issue I faced a week ago was, when I removed charger, phone still showing charging!! My friend suggested me to mess with port. Use some small sharp stuff like knife to remove touching charging port with outer steel body, and it worked.
So I concluded there must be some issue with it. Today morning After fresh installation of slim rom with suggested step problem persist. But I didn't flashed gapps, just to test if there is an issue with any of the google apps. But then I installed gapps (only required and gmail and hangout)
all of sudden, issue resolved! 2% wake and 98% deep sleep in 7 hours!
Still I cannot determine what exactly caused an issue. If it is about charging point, all I know is I'll face this issue again, and as it is soldered to IC cheep, I definitely need to give it to professional repair.

As I guessed, Issue again comes, this time I see that 'vbus_present' holds kernel wakelock even after unplugged.
USB working fine, but sometime it keep showing charging after unplugged.
Temporary I am keep plugging and unplugging till charging icon disappear. and then reboot the phone (Rebooting is required otherwise lock will not release).
Soon I will have to repair charging point.

Ha haha, Alli need is to do not let charging point touch outer surface
Sent from my Nexus 7 using xda app-developers app

Can someone who is rooted try this? See if it helps the Android System Battery Drain

Hey, I'm not rooted at the moment and might not be for some time.
When I go to Settings > Developer Options > Process Stats > (Menu) Show System Stats (check) > Android System ....it shows AntService is taking up 100%.
Can someone who is rooted put AntService to sleep/freeze/quarantine and see if that helps the Android System battery drain situation?
Thanks

master4g said:
Hey, I'm not rooted at the moment and might not be for some time.
When I go to Settings > Developer Options > Process Stats > (Menu) Show System Stats (check) > Android System ....it shows AntService is taking up 100%.
Can someone who is rooted put AntService to sleep/freeze/quarantine and see if that helps the Android System battery drain situation?
Thanks
Click to expand...
Click to collapse
No. It does not stop it, the only thing that does is a lot of debloating. Root your phone and install RDDT/RODT and your Android System will not take up as much. But keep note that Android System really isn't draining your battery per-say. There are just a lot of new processes involved in the "Android System" package.

Joe0113 said:
No. It does not stop it, the only thing that does is a lot of debloating. Root your phone and install RDDT/RODT and your Android System will not take up as much. But keep note that Android System really isn't draining your battery per-say. There are just a lot of new processes involved in the "Android System" package.
Click to expand...
Click to collapse
What is RDDT/RODT? And what specifically are you debloating? When I got the phone, I set it up as normal and Android System and Android OS were taking up 40% of my battery. I started uninstalling my apps and freezing the apps which I was allowed to , until I was down to the bare bone, and still Android System and OS were taking up about 40% of my battery. I did a hard reset and chose not to have Google automatically reinstall my app, and even with a fresh install, it was still a problem. Im out of ideas and am not sure what to do. I was hoping for a root with didn't trigger Knox so I might wait a bit longer. (The Note 3 root which didn't trigger Knox came out only one week after first root which came out)
My wifes Moto G on KitKat doesn't have a Android System drain issue, and my S3 on Stock didn't have an issue either. BTW how many hours of screen time do you get with your setup?

master4g said:
What is RDDT/RODT? And what specifically are you debloating? When I got the phone, I set it up as normal and Android System and Android OS were taking up 40% of my battery. I started uninstalling my apps and freezing the apps which I was allowed to , until I was down to the bare bone, and still Android System and OS were taking up about 40% of my battery. I did a hard reset and chose not to have Google automatically reinstall my app, and even with a fresh install, it was still a problem. Im out of ideas and am not sure what to do. I was hoping for a root with didn't trigger Knox so I might wait a bit longer. (The Note 3 root which didn't trigger Knox came out only one week after first root which came out)
My wifes Moto G on KitKat doesn't have a Android System drain issue, and my S3 on Stock didn't have an issue either. BTW how many hours of screen time do you get with your setup?
Click to expand...
Click to collapse
GSam says I average 4hr 30min of on screen time with a total battery usage average of 35 total hrs per charge.

Any 5.1 ROM that doesn't have these Android System/OS/Kernel battery issues?

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...