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I bought a Tab Pro 8.4 and decided to install Cyanogenmod 11 on it (currently on M12).
When I check my Battery usage under Settings after leaving it alone for several hours, "Android OS" is shown to be using over 60%. I tried using the Wakelock Detector app, and that didn't show any rogue apps. The "total wake time" in WD also closely matches the "keep awake" time for Android OS in Settings>Battery. There's even been a few times that my device didn't go into deep sleep at all.
Restarting the device didn't help as the problem would come back after an hour. I've tried several fixes including turning off auto-sync, using Greenify to freeze apps, and wiping my external SD card. None of them worked, but now I think I've found the source of the problem.
If I turn off wi-fi, "Android OS" no longer shows up at the top of my Battery page. Turn wi-fi back on and the problem comes back. Turning sync off doesn't change anything, so it seems like the issue is with the wi-fi itself and not with syncing apps. I even went into advanced Wi-Fi settings and changed it to 'turn off wi-fi during sleep' and still had the battery drain (though not as much - around 30% but still more than anything else). Changing the "Wi-fi Optimization" setting doesn't do anything either. I do notice sometimes when using my tablet that I don't have as many bars (on the wi-fi symbol in the status bar) as I do on my phone.
Does anyone have experience with this wi-fi issue? My GS3 doesn't do this. I assume that the problem is that my tablet device has a bad wi-fi connection and is always scanning or something, but I have no idea where to go from here.
EDIT: I might try downgrading to a previous milestone of CM11. I was reading in another thread how some other people were having wifi issues on M12 as well. My GS3 has been stuck on M10 because later updates broke stuff, so I'll try M10 on my tablet.
Hey all, so I'm having a very annoying and strange issue: My Moto 360 will wake up (i.e. screen turns on) randomly and without reason, ranging from within seconds of each wake to minutes, but it absolutely kills the battery (I can't make it more than 10-12 hours with absolute minimal usage). This is with tilt to wake off, theater mode on, all possible apps except the Android Wear app uninstalled. and the watch sitting completely still on a table. It was happening with Android 5.1 and 5.1.1 on my Nexus 6, and is still happening with the recent 5.1.1 Android Wear update.
The only way to "fix" the waking up issue is if I turn on airplane mode on my phone, which obviously disconnects the watch. So clearly my Nexus 6 is waking up the watch remotely, be it through the AW app or through the connection itself somehow. One other note: when I reset the watch and pair it with my 2013 Nexus 7, the issue doesn't occur, so clearly it's not a problem with the watch's hardware or software, but with the way the Nexus 6 communicates with the watch.
Really would appreciate any insight or guidance as to what's going on - I'm truly at a loss, and the only explanation I can possibly come up with is an issue with my phone's internal hardware (maybe something bluetooth-related)? I've even reset my phone on multiple occasions and that won't fix it.
The only other reference on the internet I can find to this issue is here, where this guy seems to be having the same problem, albeit with a different Mororola-produced phone: https://productforums.google.com/forum/#!topic/android-wear/5vB-dKc5IGI.
About 3 days ago the battery drain on my Nexus 5X went crazy. I found out that the "app" Android System do not let the phone sleep and keeps it awake all the time. That is why the phone can not even get into doze mode and drains about 8% per hour when the screen is off. I tried restarting the device and also force stopping the Android System. Both without any succes. Do anybody knows what to do with it? Or should I just wait if it will go back to normal? I do have screenshots, but the XDA will not let me post outside links...
Interested about that.
Ur screenshot may be useful, host them in a site like imgur and replace dots by other letters.
Envoyé de mon Nexus 5X en utilisant Tapatalk
Screenshots
ht_tp://_postimg[dot]org/image/5r5nyu9c1/
ht_tp://_postimg[dot]org/image/481jlr4xt/
Well just delete the two underscores and the "dot" thing
I am having the same problem. It occurs randomly, most often when I have just charged the phone and removed the cable. If i am correct, a wakelock under the name *backup* is holding the phone awake, it might be the same in ur case. I've done a research on this, turned out this is unfixable unless you have some sort of wakeblocker, which my current rom lacks of. I tried using xposed with its modules, but it gave me a ton of bootloops and i gave up on it. The only temporary fix for me is to reboot the phone. Until it happens again. No clean flash nor anything i have tried seemed to have helped. I even tried disabling all services and receivers from Android System, no luck again. That is one hefty problem
luckana said:
I am having the same problem. It occurs randomly, most often when I have just charged the phone and removed the cable. If i am correct, a wakelock under the name *backup* is holding the phone awake, it might be the same in ur case. I've done a research on this, turned out this is unfixable unless you have some sort of wakeblocker, which my current rom lacks of. I tried using xposed with its modules, but it gave me a ton of bootloops and i gave up on it. The only temporary fix for me is to reboot the phone. Until it happens again. No clean flash nor anything i have tried seemed to have helped. I even tried disabling all services and receivers from Android System, no luck again. That is one hefty problem
Click to expand...
Click to collapse
I have exactly same problem with wakelock. It happens only after charging. Everything is OK after restart.
It has happened to me sometimes on my old HTC One X and I think it happened also once on this 5X, but it was just for about a day or so. It disappeared itself with time, I didn't do anything with it then. Now it's been 6 days, I have to charge the phone twice as frequently and neither the reboot nor the force stopping everything works. I really don't know what to do in this case. Also this phone isn't rooted yet, so I can't just flash the system again as on my old HTC... I'm still hoping it will disappear by itself asap
But do you anybody have any other ideas what can I try to do to stop that crazy system app?
same problem here...
had the phone about 350 hours with no restart and i thought i would give it a reboot..
same think happened...android system was going from 2% to 20% in a matter of hours..
installed an app called GSam Battery monitor..showed me the phone was not going in deep sleep (Doze mode) at all...
here is an attachment if anyone can understand better than me..
I posted a similar thing in the battery life thread. Very odd really as I've had the phone a few months now but it also only started with me a few weeks ago. Really can't think of a trigger for it... I doubt the April update would have been significant enough to create an issue, but who knows.
Exactly. After about 4 months of working excellently and about 400 hours without restarting, after charging it's immediately goes into this "mode" when the Android System won't let the phone sleep. Even restart didn't help me, but now after 3 restarts it goes to normal. One bad thing... after every single one charging, every time I put the phone on the charger it goes crazy again and I have to restart the phone after every cutting of of the charger... it makes me really angry when the phone is only 4 months old and even the "okay" battery life isn't that good on this phone... God I just need to find a solution, that's insane...
Jandiey said:
Exactly. After about 4 months of working excellently and about 400 hours without restarting, after charging it's immediately goes into this "mode" when the Android System won't let the phone sleep. Even restart didn't help me, but now after 3 restarts it goes to normal. One bad thing... after every single one charging, every time I put the phone on the charger it goes crazy again and I have to restart the phone after every cutting of of the charger... it makes me really angry when the phone is only 4 months old and even the "okay" battery life isn't that good on this phone... God I just need to find a solution, that's insane...
Click to expand...
Click to collapse
THIS!!!!
the phones battery life was a big "ok i can just play a bit less so i can get through the day and IF anything happens i know it has fast charge so ok"
nowadays i have to reboot after EVERY charge....
p.s.
anyone that faces the same problem but WITH mai's security update? do we have any hope that it will fix that problem?
Not sure if it's a one-off, but I decided to uninstall the game "8 Ball Pool" by miniclip as it appeared on my battery usage stats when I'd not opened it in days. Since then, even after a recharge, the phone seems to be going to sleep as normal.
I'll monitor to see how things go but perhaps it could genuinely be a rogue app. It's a little disappointing that doze wouldn't block the keep awake requests - I thought that was one of the main purposes of it.
The same issue occurs for my Nexus 5X: after device disconnected from a charger, Android System process starts to keep device awake until next restart. As I understand from comments above factory reset does not help to solve a problem. Has anybody met the similar problem with custom ROMs/kernels?
scoobygram said:
The same issue occurs for my Nexus 5X: after device disconnected from a charger, Android System process starts to keep device awake until next restart. As I understand from comments above factory reset does not help to solve a problem. Has anybody met the similar problem with custom ROMs/kernels?
Click to expand...
Click to collapse
It started with the latest update I think. It hasn't happened once ever before. I hope they already know what's happening and with the May update it will be gone. I don't think there's any other solution when you don't want to flash custom ROM and stay on stock... :/ we have to wait.. :/
Jandiey said:
It started with the latest update I think. It hasn't happened once ever before. I hope they already know what's happening and with the May update it will be gone. I don't think there's any other solution when you don't want to flash custom ROM and stay on stock... :/ we have to wait.. :/
Click to expand...
Click to collapse
Hmmm, sorry for offtopic clarification... as of now I'm little bit confused about Android versioning, especially it's unclear for me: whether you mean as latest update: 6.0.1 or april security patch or model build number (like MHC19Q, which is currently on my device)?
I guess it must be April security patch. Some kind of problem in the Android System app that comes with the security patch. I don't really know in this case, but as I've said, it hasn't happened once before the April patch
Jandiey said:
I guess it must be April security patch. Some kind of problem in the Android System app that comes with the security patch. I don't really know in this case, but as I've said, it hasn't happened once before the April patch
Click to expand...
Click to collapse
I rolled back to MHC 19J. The April MTC19T Build cut my battery life in half. Android system being the top culprit. Deep sleep never going over 80%. Horrible idle drain. Would drain 15% over night while i slept. Exact same setup as before, no new apps. SOT went from about 5 hours to not even 3.
ScumDroid said:
I rolled back to MHC 19J. The April MTC19T Build cut my battery life in half. Android system being the top culprit. Deep sleep never going over 80%. Horrible idle drain. Would drain 15% over night while i slept. Exact same setup as before, no new apps. SOT went from about 5 hours to not even 3.
Click to expand...
Click to collapse
MTC19T is May update. I've updated my device to it yesterday and the issue hasn't been fixed yet: a device is still kept awake by Android System after disconnecting from a charger. @ScumDroid, could you please confirm there is no such issue on MTC19J after rolling back?
Jandiey said:
Exactly. After about 4 months of working excellently and about 400 hours without restarting, after charging it's immediately goes into this "mode" when the Android System won't let the phone sleep. Even restart didn't help me, but now after 3 restarts it goes to normal. One bad thing... after every single one charging, every time I put the phone on the charger it goes crazy again and I have to restart the phone after every cutting of of the charger... it makes me really angry when the phone is only 4 months old and even the "okay" battery life isn't that good on this phone... God I just need to find a solution, that's insane...
Click to expand...
Click to collapse
Same issue. After running it for few months flawlessly, the Android System is keeping the device awake and only restarting it solving the problem temporarily. Charging the phone again starts the wake lock..
Most disappointing is it's the 'Android System' that causing the problem. If any app/game is linked to this, it should have been appeared as the culprit but unfortunately it's that 'System'.
Waiting for solution.
Samsung users are having the same problem.
I have found something on my Samsung Galaxy S6 in regards to 'Android OS' killing the battery. It might be the same for Nexus users, I've confirmed this on a Moto G 2015 running the latest MM update and on a Samsung Galaxy S6 Edge. By latest update, I mean the April security patch.
Check this and this.
scoobygram said:
MTC19T is May update. I've updated my device to it yesterday and the issue hasn't been fixed yet: a device is still kept awake by Android System after disconnecting from a charger. @ScumDroid, could you please confirm there is no such issue on MTC19J after rolling back?
Click to expand...
Click to collapse
Sorry for the late response mate. I have no issues with android system draining battery in MTC19J.
Hi,
I had my htc10 with Android 6 and used to get around 4-5 hours of SOT. Everything was perfect and used to get around 2 days battery!!
Than I get android 7 and everything got worse!! Now I get around 3 hours of SOT and if I have luck I can get 1 day (I am not a heavy user).
I did reset but it didn't help!
I am not rooted and I barely use wifi/gps/bluetooth through the day..
Today I recognized this:
At the history I saw that my Wi-Fi is awake all the day but the problem is that my Wi-Fi was OFF during the day!
I checked the Wi-Fi scanning at the location and it's off too so I don't know what is the problem!!
Please help! I can't understand why my Wi-Fi is awake all the time!
any suggestions?!
I didn't see this Wi-Fi ON all the time after Android 7.0 update, but observed last week because of battery heavy drain over night. That day for some reason Wi-Fi never went to sleep mode and found that playstore got updated to new version (with play icon). However, I did reboot my phone and didn't see that behavior afterwards.
Some options to try
1) Try toggling ON & OFF the Wi-Fi scanning option.
2) See if anything is enabled in Google Now launcher or Google Search bar on main screen.
If I come across anything else, I will post it here.
raner2017 said:
Hi,
I had my htc10 with Android 6 and used to get around 4-5 hours of SOT. Everything was perfect and used to get around 2 days battery!!
Than I get android 7 and everything got worse!! Now I get around 3 hours of SOT and if I have luck I can get 1 day (I am not a heavy user).
I did reset but it didn't help!
I am not rooted and I barely use wifi/gps/bluetooth through the day..
Today I recognized this:
At the history I saw that my Wi-Fi is awake all the day but the problem is that my Wi-Fi was OFF during the day!
I checked the Wi-Fi scanning at the location and it's off too so I don't know what is the problem!!
Please help! I can't understand why my Wi-Fi is awake all the time!
any suggestions?!
Click to expand...
Click to collapse
Thanks a lot
I already did those.. Today I checked it again and it seems OK (Wi-Fi went to the sleep mode over the night).. I will check again and I hope it will continue and not to see it again
But the series problem it's that after the update to 7.0, the SOT is far from what it was. I did everything (switch off every option that I don't really need like sync, GPS, Wi-Fi, cash clearing and...).
The Android OS killing me: around 20% every time..
Before the update I really get amazing SOT, but now it sucks
raner2017 said:
Thanks a lot
I already did those.. Today I checked it again and it seems OK (Wi-Fi went to the sleep mode over the night).. I will check again and I hope it will continue and not to see it again
But the series problem it's that after the update to 7.0, the SOT is far from what it was. I did everything (switch off every option that I don't really need like sync, GPS, Wi-Fi, cash clearing and...).
The Android OS killing me: around 20% every time..
Before the update I really get amazing SOT, but now it sucks
Click to expand...
Click to collapse
After any OS update it takes some days to settle down. See what happens.
cnu4u said:
After any OS update it takes some days to settle down. See what happens.
Click to expand...
Click to collapse
I get the update 2-3 mounts ago..
if you have viber check its settings, it has an option to keep wifi on
Check your battery usage stats, and look for apps that have excessive awake times, CPU times or Radio times for the phone, uninstall those apps, see if the battery improves, I never turn off my WiFi and don't have this issue. Anything using the cell radio is most likely the issue. Also if you have weak cell service, turning on airplane mode will help so it isn't constantly searching for a network.
I've the same problem as OP. Huge drain on battery since Nougat update
A restore to defaults after the update does the trick.
Sent from my HTC 10 using Tapatalk
Hello,
I have recently factory reset my OP3 due to a battery drainage issue. Google play services started using around 30% of my battery and consequently my SOT decreased by a lot.
After the factory reset, I freshly installed of all my old apps, and I downloaded my photos from the Gdrive.
Unfortunately, since then my WiFi is acting strange. Whenever I start the phone, the WiFi is performing normal, but after a while my phone goes into deep sleep and my WiFi disables itself (just like i configuered in settings). However, when I wake my phone, my WiFi won't turn on and when I go to the WiFi settings the phone becomes extremely laggy.
I have already wiped my cache again but I don't know what else to do.
Any help is appreciated!
Kind Regards,
Same strange problem here,I must reboot phone to connect wifi.
I trying with 3 kernel, it's not kernel problem.
It's such a strange problem. I don't understand why this problemwould occur after a complete factory reset...
I had the same issue a few years ago with my HTC One M7.
By the way, my OP3 is completely stock running Android 8.0
Same problem with my 5T on 5.1.1. Weird thing is I haven't made any changes, just updated a few apps but none of them should be causing wifi issues and settings (battery history) to lag after sleep.
Dark-shot said:
It's such a strange problem. I don't understand why this problemwould occur after a complete factory reset...
I had the same issue a few years ago with my HTC One M7.
By the way, my OP3 is completely stock running Android 8.0
Click to expand...
Click to collapse
I have set wifi to always on and don't have this problem. May be the doze feature is affecting it in your case. Why don't you try the always on setting? For me it doesn't drain the battery also. So no harm in trying it.
And why settings not responding? I must touch home button in order to have working settings again.
I think it's Oxygen Os problem.
tnsmani said:
I have set wifi to always on and don't have this problem. May be the doze feature is affecting it in your case. Why don't you try the always on setting? For me it doesn't drain the battery also. So no harm in trying it.
Click to expand...
Click to collapse
The problem does not occur if I set WiFi to always on. However, this uses way more battery in my case.
If i set WiFi to always on my sot decreases from 4-5 hours to 3-4 hours.
EDIT:
I also can't find this issue anywhere else on the internet.
Dark-shot said:
The problem does not occur if I set WiFi to always on. However, this uses way more battery in my case.
If i set WiFi to always on my sot decreases from 4-5 hours to 3-4 hours.
EDIT:
I also can't find this issue anywhere else on the internet.
Click to expand...
Click to collapse
Can't find anything either. You have any of these apps installed? Substratum, Microsoft Remote Desktop, Twitch. Updated these apps two days ago which is when I noticed this problem, haven't change anything else really. Updated router firmware too (Virgin Media).
Dark-shot said:
The problem does not occur if I set WiFi to always on. However, this uses way more battery in my case.
If i set WiFi to always on my sot decreases from 4-5 hours to 3-4 hours.
EDIT:
I also can't find this issue anywhere else on the internet.
Click to expand...
Click to collapse
I can only think of factory resetting again and checking the behaviour of wifi before installing any other apps and downloading photos. Then you will know whether an app or the downloading is the cause and take action accordingly.
nrkf said:
Can't find anything either. You have any of these apps installed? Substratum, Microsoft Remote Desktop, Twitch. Updated these apps two days ago which is when I noticed this problem, haven't change anything else really. Updated router firmware too (Virgin Media).
Click to expand...
Click to collapse
No, I haven't installed any of those apps. However, since the factory reset I started using the regular Chrome instead of Chrome Beta.
tnsmani said:
I can only think of factory resetting again and checking the behaviour of wifi before installing any other apps and downloading photos. Then you will know whether an app or the downloading is the cause and take action accordingly.
Click to expand...
Click to collapse
I could also test that with the phone in safe mode, right?
Dark-shot said:
No, I haven't installed any of those apps. However, since the factory reset I started using the regular Chrome instead of Chrome Beta.
I could also test that with the phone in safe mode, right?
Click to expand...
Click to collapse
I think so, yes.
I just disabled all third party apps, and the problem still persists
I have set wifi always on,and flash HolyDragon kernel, problem it's gone.
I don't know if kernel, or settings always on wifi, resolve my wifi connection.
I've been having the same problem too as of yesterday. Did a factory wipe and reinstalled Oxygen 5.0.1 but still having the issue after i reinstalled apps. going to try a factory reset again and not install or update any apps to see if maybe a recent app update is causing this.
GXTracker said:
I've been having the same problem too as of yesterday. Did a factory wipe and reinstalled Oxygen 5.0.1 but still having the issue after i reinstalled apps. going to try a factory reset again and not install or update any apps to see if maybe a recent app update is causing this.
Click to expand...
Click to collapse
Could you update us if you manage to fix the issue?
Dark-shot said:
Could you update us if you manage to fix the issue?
Click to expand...
Click to collapse
IT didn't work for me. Right after flashing the OS back onto the phone and connecting to WiFi, i changed the WiFi setting for "Keep WiFi awake when asleep" to "only when plugged in" and after locking the screen and waking it back up a few minutes later it still wouldn't activate the WiFi; I had to manually go into the WiFi settings and turn WiFi back on.
On the bright side though, I did do some reading on the "Keep WiFi awake when asleep" setting and several sources said to leave it on "Always" since it actually drains more power turning on the WiFi radio when the phone wakes up. I've since changed that setting to Always and over the last two days I've noticed slightly less battery drain!
It happen to me too. Cant turn on wifi after waking up from deepsleep. Must reboot the phone. I had tried to clean everything , data, system,cache, everything and made a clean flash but it still happen ,only for 8.x android. I tried in Nougat and see no such problem. Im using oneplus 5t
Yea, I have same problem staring with oreo update. Can say, that I tried all kernels around, and some of them made wifi connecting faster or even reduced the number of crashes, but not completely. Sadly, I can't stay on those kernels, coz I have another problem, - iv got random reboots with most of them, only stock works... So every solution is inappropriate for me, and I reverted to nougat waiting for Android 8.1
Same problem here. I am on beta 35. Additionally I was on Franco kernel and had random reboots. Kernel back to stock no more reboots but still the wifi issue. I'll test the always on.
Hopefully it gets fixed in the next update. For now, I'm using the ''always on'' WiFi option.
Thank you all for the replies!