Wake lock problem on Lollipop? - Nexus 5 Q&A, Help & Troubleshooting

Hey guys... Can you please tell me what is happening? I have 2 nexus 5s both running identically similar apps and this is what is happening with the battery. One was unplugged since last night at 2am. One was unplugged this morning at 9am and the 9am battery is almost done. What is happening?!?!

henfai said:
Hey guys... Can you please tell me what is happening? I have 2 nexus 5s both running identically similar apps and this is what is happening with the battery. One was unplugged since last night at 2am. One was unplugged this morning at 9am and the 9am battery is almost done. What is happening?!?!
Click to expand...
Click to collapse
Well my issue was WI-FI but yours doesn't seems like that. Maybe a 3rd party app make this wakelocks. Use the phone in safe mode for 1-2 hours and check it.

kamajikaciya said:
Well my issue was WI-FI but yours doesn't seems like that. Maybe a 3rd party app make this wakelocks. Use the phone in safe mode for 1-2 hours and check it.
Click to expand...
Click to collapse
Okay thank you. So after a few hours of it being in safe mode. The battery stat suggests that it is not constantly on awake like before anymore. What does this imply?

It means there's a HUGE bug in Lollipop 5 for Nexus 5. We all hope that Google will fix it soon. Just hope.

Thanks! It's strange though. Why affect one device but not the other?

This must be asked to Google.

Related

P6210 - Huge Battery Drain on ICS

Anyone experiencing battery drain on ICS? I upgraded, rooted, and removed some of the bloatware to help. Thought it was fixed but my tab is dead again. Says the Android OS is taking up my juice. Was never a problem before. Could leave it on standby for days with HC. Now its dead in a day or less.
jjj133 said:
Anyone experiencing battery drain on ICS? I upgraded, rooted, and removed some of the bloatware to help. Thought it was fixed but my tab is dead again. Says the Android OS is taking up my juice. Was never a problem before. Could leave it on standby for days with HC. Now its dead in a day or less.
Click to expand...
Click to collapse
I initially saw similar behavior, but once I killed the cached processes once, and since have shut down to charge and started new, I haven't seen that behavior.
Do you have WiFi on? Could it be you have apps that are checking to be updated? I know in the past on my phone my Amazon Appstore has a habit of starting itself up and continually checking for updates for itself and for any apps I got from Amazon.
Tried it both ways...wifi on and off.
Try using CPU spy (free in market) or betterbatterystats (free- search for it here on XDA) to see what is eating up your battery exactly.
Sent from my SPH-L710 using xda premium
I noticed that I had a conflict between "Power Savings" settings and the "Display" settings. Putting them both at 1 minute resulted in an always on screen I had to disable the Power Savings to correct the problem.
I did have something odd happen yesterday that seems to have kept my screen on for 4 hours. When I got home and opened my case the tab was very warm, and shut off. And all but entirely out of power, before that it has used about 10 % in 17 hours of standby with about an hour of use, or so.
I think it is possible that an app that previously didn't keep the screen on is now for some reason keeping it on, and I didn't notice when I closed the leather cover.
No issues today, but I am going to try and see if I can find some release notes to tell me about the new download for ICS for the P6210, perhaps this is addressed?
Just to update I installed the betterbatterystats. I showed a couple of things that were keeping my tab awake. Once I fixed those I thought that would be it but it was still draining. I then installed juice defender and had it turn wifi off every time I turned the screen off. That did it. Was never like this before the update but at least its good to know I fixed it.
i suggest checking better battery stats for AudioOut_1 Partial Wakelock. its been draining my phone fast when i upgraded to ICS.
check it here: http://forum.xda-developers.com/showthread.php?t=1629346
now my battery is working great.. i just left my tab for 10 hrs in the locker when i got the tab its still have 97% battery.
for me i just checked and changed my wifi sleep policy from never to when screen turns off and its fine now. :highfive:
I thought about this very issue; I decided to wait.
jjj133 said:
Anyone experiencing battery drain on ICS? I upgraded, rooted, and removed some of the bloatware to help. Thought it was fixed but my tab is dead again. Says the Android OS is taking up my juice. Was never a problem before. Could leave it on standby for days with HC. Now its dead in a day or less.
Click to expand...
Click to collapse
Did you download the ICS as opensource? Myself, I am deciding to wait for the OFFICIAL verson to be released.
I had the same problem. i even went back to HC to make sure
the issue is not there (it wasn't) and upgraded to ICS
again (full wipe all the time). No luck something keeps
my device unable to go to deep sleep.
Now i'm back at HC again
hunterbreedlove said:
Did you download the ICS as opensource? Myself, I am deciding to wait for the OFFICIAL verson to be released.
Click to expand...
Click to collapse
The version is OFFICIAL .
It's just available only for some countries.
i had the huge battery drain issue while in stock ICS..
the tablet simply refused point blank to go into deep sleep.. in HC it would but not in ICS.. i would take the tablet fully charged to work and not use it much there.. by the time i was travelling back it would be 60% drained in not using it througout the day...
recently flashed to aorths CM9 build and all my battery woes are gone.. now when i get back from work the battery is at 96%!!
battery drain during usage is the same but the CM9 build has awesome battery conservation stuffs for when you dont use it..
would suggest everyone who has these battery issues to move to CM9.. really helped for me.
My battery usage on CM9..
Sent from my GT-P6210 using xda premium
jjj133 said:
Just to update I installed the betterbatterystats. I showed a couple of things that were keeping my tab awake. Once I fixed those I thought that would be it but it was still draining. I then installed juice defender and had it turn wifi off every time I turned the screen off. That did it. Was never like this before the update but at least its good to know I fixed it.
Click to expand...
Click to collapse
Early results show Juice Defender is helping a lot with mine too. Thanks for the tip!
Next morning: Just the free version of Juice Defender using the default profile took me from 35% overnight drain yesterday down to 3% overnight drain today. That's not bad. It should be even better tomorrow because I've turned off all location services after seeing that BetterBatteryStats says Google location is the worst single offender at keeping wifi going overnight.
vobguy said:
I initially saw similar behavior, but once I killed the cached processes once, and since have shut down to charge and started new, I haven't seen that behavior.
Do you have WiFi on? Could it be you have apps that are checking to be updated? I know in the past on my phone my Amazon Appstore has a habit of starting itself up and continually checking for updates for itself and for any apps I got from Amazon.
Click to expand...
Click to collapse
Could you tell me how you "killed cached processes" please?
I am having similar battery drain. I am in the process of completely charging battery after it drained 40% in sleep mode last night, wifi off in sleep mods, notifications off, sync off.
I have already done a reset to factory, tried draining battery, and recharged in off position.
Nothing is helping so far. I have installed better battery stats, and CPU spy this morning, and will have data tomorrow morning.
thanks for any help
roqufort said:
Could you tell me how you "killed cached processes" please?
I am having similar battery drain. I am in the process of completely charging battery after it drained 40% in sleep mode last night, wifi off in sleep mods, notifications off, sync off.
I have already done a reset to factory, tried draining battery, and recharged in off position.
Nothing is helping so far. I have installed better battery stats, and CPU spy this morning, and will have data tomorrow morning.
thanks for any help
Click to expand...
Click to collapse
I had the same exact problem ever since the stock ICS update. My Tab Plus is all stock, no mods at all. The battery would completely drain after one day, and I have very little on the Tab Plus. Nothing helped at all, so I finally bit and did a factory wipe. The battery drain stopped immediately, so I started changing the settings back to the way I like it.
Then, next day the battery went completely dead again! I back tracked and figured out exactly what it is which makes absolutely NO SENSE - turning off wifi in sleep was what was draining the battery! See my screen captures. Notice on the first screen shot, as soon as the wifi stays on the battery drop bar stayed almost flat.
I observed a similar behavior on my 100% stock AT&T GS3 phone also, turning wifi off during sleep causes more battery drain.
I'm getting "suspend backoff" under kernel wakelocks which is preventing my tab going to deep sleep when unused. Everytime I wakeup in the morning my tab is dead. The only solution I found was to turn off wifi if I'm not using it. Anyway fixing this?
Sent from my ALCATEL ONE TOUCH 918N using xda app-developers app
aperture said:
I'm getting "suspend backoff" under kernel wakelocks which is preventing my tab going to deep sleep when unused. Everytime I wakeup in the morning my tab is dead. The only solution I found was to turn off wifi if I'm not using it. Anyway fixing this?
Sent from my ALCATEL ONE TOUCH 918N using xda app-developers app
Click to expand...
Click to collapse
Juice Defender. The free version of the app, using the default profile, should take care of this.
iosandroid said:
I had the same exact problem ever since the stock ICS update. My Tab Plus is all stock, no mods at all. The battery would completely drain after one day, and I have very little on the Tab Plus. Nothing helped at all, so I finally bit and did a factory wipe. The battery drain stopped immediately, so I started changing the settings back to the way I like it.
Then, next day the battery went completely dead again! I back tracked and figured out exactly what it is which makes absolutely NO SENSE - turning off wifi in sleep was what was draining the battery! See my screen captures. Notice on the first screen shot, as soon as the wifi stays on the battery drop bar stayed almost flat.
I observed a similar behavior on my 100% stock AT&T GS3 phone also, turning wifi off during sleep causes more battery drain.
Click to expand...
Click to collapse
THAT worked!!!!! awesome thanks

[Q] phone shuts down after battery goes from 40-50% to 0%

Today I had my AT&T One X at around 40% charge when I went to sleep. After getting up the phone had shut itself down and when I try to turn it on using the power switch nothing happens. I charged it then it starts charging from 0%. I am on stock 4.04 rom and have rooted the phone. This is the third time in a month that this has happened. I am attaching the battery curve that I got after today's incident. Please Help! Thank you very much for any help in advance.
bosskaunhai said:
Today I had my AT&T One X at around 40% charge when I went to sleep. After getting up the phone had shut itself down and when I try to turn it on using the power switch nothing happens. I charged it then it starts charging from 0%. I am on stock 4.04 rom and have rooted the phone. This is the third time in a month that this has happened. I am attaching the battery curve that I got after today's incident. Please Help! Thank you very much for any help in advance.
Click to expand...
Click to collapse
Sounds like bad wakelocks, install Better Battery Stats to find out what is draining your battery.
Crappyvate said:
Sounds like bad wakelocks, install Better Battery Stats to find out what is draining your battery.
Click to expand...
Click to collapse
I have installed betterbatterystats and will update with results next time it happens..
I too am having this problem. Though it started happening after my phone drained and wouldn't restart after charging (boot loop). After I fixed that, it's been dropping dead.
I'm on a stock rom with ElementalX 3.0 kernel. Was v2.0 when it initially started.
Any luck finding information? I still get about the same use out of it (sometimes). I'm thinking that maybe the battery's level is getting reported incorrectly?
This is a known bug, whatever the hell is causing it. Just about everyone has had this happen at least once.
Its Reh said:
I too am having this problem. Though it started happening after my phone drained and wouldn't restart after charging (boot loop). After I fixed that, it's been dropping dead.
I'm on a stock rom with ElementalX 3.0 kernel. Was v2.0 when it initially started.
Any luck finding information? I still get about the same use out of it (sometimes). I'm thinking that maybe the battery's level is getting reported incorrectly?
Click to expand...
Click to collapse
How often are you having this problem. I have had this happen about 3 times in the last three weeks or so. Since my post last week, I haven't had it happen to me yet. I now have the betterbatterystats app installed and will update with results the next time I have battery drain.
bosskaunhai said:
How often are you having this problem. I have had this happen about 3 times in the last three weeks or so. Since my post last week, I haven't had it happen to me yet. I now have the betterbatterystats app installed and will update with results the next time I have battery drain.
Click to expand...
Click to collapse
It happens quite often. Happened today, then three days before that. I really don't have much on this phone either. After the initial bootloop I did a factory reset and didn't really add much.
This happened to me once on stock rom and kernel. I think it has something to do with the network trying repeatedly to connect and draining the battery. But the phone is asleep and not updating the battery percentage. When the phone finally awakes, it instantly updates the batteryfrom whatever it was before to 0. It seems to happen to people in the early morning.
There is a pretty sizable thread on this already.
http://forum.xda-developers.com/showthread.php?t=1881439
I have contacted AT&T and HTC. Neither knows whats up. Went to CM 10 though and haven't seen the issue. Although, the last 2 weeks with CR Dev I didn't see the issue either. It used to happen every night.
Butters619 said:
There is a pretty sizable thread on this already.
http://forum.xda-developers.com/showthread.php?t=1881439
I have contacted AT&T and HTC. Neither knows whats up. Went to CM 10 though and haven't seen the issue. Although, the last 2 weeks with CR Dev I didn't see the issue either. It used to happen every night.
Click to expand...
Click to collapse
Thought I remembered seeing a thread but couldn't find it via search.
I wonder if it's a sense based issue if you haven't seen it with CM 10. Though I didn't have any issues while using the stock kernel. -edit just read flar2's post about using stock and seeing the issue
Most likely something is draining while the phone is asleep and the battery doesn't update. You can see in my history details that when the phone wakes it jumps. Especially the ending death jump lol
I know if I have fast boot enabled and then it off, it'll drain around 10%. It only loses around 3 or 4 if the phone is shut down. I've never left it on overnight, but then again I am an avid task-killer
Sent from my One X using Tapatalk 2

Battery draw only after WiFi use

I rarely ever use WiFi but when I do after I get back I to a good signal area and turn WiFi off my phone has a big draw on the battery.
For example... I go to my friend's house where signal is poor and I turn on WiFi where there. Get home that night and turn WiFi off and charge the phone over night. Next day by lunch I'm around 60% battery left with about 15 min screen on time where I'd usually be around 90%. Reboot phone and battery draw will stop.
I'm on stock Rom and kernal, 4.4.2, black 32 gig model, t mobile service, of any of this matters.
Sent from my Nexus 7 using Tapatalk
DualSportDad said:
I rarely ever use WiFi but when I do after I get back I to a good signal area and turn WiFi off my phone has a big draw on the battery.
For example... I go to my friend's house where signal is poor and I turn on WiFi where there. Get home that night and turn WiFi off and charge the phone over night. Next day by lunch I'm around 60% battery left with about 15 min screen on time where I'd usually be around 90%. Reboot phone and battery draw will stop.
I'm on stock Rom and kernal, 4.2.2, black 32 gig model, t mobile service, of any of this matters.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
4.2.2 ??!!! ??
Sent from my Nexus 5
rahil3108 said:
4.2.2 ??!!! ??
Sent from my Nexus 5
Click to expand...
Click to collapse
Fixed! Woops.
Sent from my Nexus 7 using Tapatalk
DualSportDad said:
I rarely ever use WiFi but when I do after I get back I to a good signal area and turn WiFi off my phone has a big draw on the battery.
For example... I go to my friend's house where signal is poor and I turn on WiFi where there. Get home that night and turn WiFi off and charge the phone over night. Next day by lunch I'm around 60% battery left with about 15 min screen on time where I'd usually be around 90%. Reboot phone and battery draw will stop.
I'm on stock Rom and kernal, 4.4.2, black 32 gig model, t mobile service, of any of this matters.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
There have been a couple posts about this issue. It's a bug in Android or the firmware, don't know which one. Cycling airplane mode should also fix it.
I searched but didn't find anything. I'll try cycling airplane mode next time but I'd still like to find a permanent fix.
Sent from my Nexus 7 using Tapatalk
DualSportDad said:
I searched but didn't find anything. I'll try cycling airplane mode next time but I'd still like to find a permanent fix.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
There isn't a permanent fix.
No ROM or kernal that I could flash? Maybe a different phone all together?
Sent from my Nexus 7 using Tapatalk
Haven't heard about this bug.
Does every Nexus 5 have it?
Sensamic said:
Haven't heard about this bug.
Does every Nexus 5 have it?
Click to expand...
Click to collapse
Never heard of it either and I don't have it so,no, all nexuss don't have it.
Sent from my Nexus 5
They all must if there isn't a fix. If not should I all Google for a new phone?
Sent from my Nexus 5 using Tapatalk
+1 for never hearing of this bug and +1 for never having this issue.
Flash back to stock and monitor with bbs. Factory reset if you can too
Sent from my Nexus 5 using Tapatalk
rootSU said:
+1 for never hearing of this bug and +1 for never having this issue.
Flash back to stock and monitor with bbs. Factory reset if you can too
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
It happens on full stock also. BBS doesn't show anything. Literally 5-8% per hour drain, and BBS shows nothing. Nor does the system battery stats. I'm thinking that maybe it's an issue like the screens on this device, where everyone's looks a little different. Maybe there's a slight variation in some of the hardware, like the modem, that is causing this issue for some and not for others. The N7 2013's have the whole touch screen fiasco to support this theory.
It could be in the stock kernel code. If that's true, it's been carried over to FK.
It could be in the modem. But it still happens on both of them.
Aerowinder said:
It happens on full stock also.
Click to expand...
Click to collapse
For some it does but also for some it does not. May as well limit the variables whilst troubleshooting. Doesn't happen to me on full stock or any other ROM and kernel combination so I doubt the issue exists specifically in full stock without any other combination of attributing factors.
rootSU said:
For some it does but also for some it does not. May as well limit the variables whilst troubleshooting. Doesn't happen to me on full stock or any other ROM and kernel combination so I doubt the issue exists specifically in full stock without any other combination of attributing factors.
Click to expand...
Click to collapse
I edited my post as you were responding (like I always do!).
Here's the thread I made a while ago regarding this issue: http://forum.xda-developers.com/showthread.php?t=2589036
Aerowinder said:
I edited my post as you were responding (like I always do!).
Here's the thread I made a while ago regarding this issue: http://forum.xda-developers.com/showthread.php?t=2589036
Click to expand...
Click to collapse
I'm not saying I don't believe you. I'm just saying if it doesn't affect everyone, there is more to it than a straight up bug. It must be a combination of things (possibly including a bug) and the best troubleshooting is to limit the variables.
Just to be clear mine is stock unlocked. I was going to flash cm11 and see if that stops the problem but it seems as if it won't. Since it seems some have it and some don't getting the phone exchanged might be my best option?
Sent from my SPH-L900 using Tapatalk
Aero it sounds like we have the same problem. Mine does it Evey time I turn on Wi-Fi and then turn it back off. I think I'll call Google and get a replacement.... Maybe they'll let me change to a red one to.
Sent from my SPH-L900 using Tapatalk
DualSportDad said:
Aero it sounds like we have the same problem. Mine does it Evey time I turn on Wi-Fi and then turn it back off. I think I'll call Google and get a replacement.... Maybe they'll let me change to a red one to.
Sent from my SPH-L900 using Tapatalk
Click to expand...
Click to collapse
That's interesting. I have Tasker toggle my wifi when I'm at work. Maybe I'll try disabling that task and let wifi stay on all the time. I normally notice the issue while I'm at work (with wifi now toggled off because of Tasker). I'll pull the phone out to check my texts, and I'll be at 75%...
Aerowinder said:
That's interesting. I have Tasker toggle my wifi when I'm at work. Maybe I'll try disabling that task and let wifi stay on all the time.
Click to expand...
Click to collapse
just so i'm clear.... i notice the drain after i turn off wifi, the drain could start as soon as i turn it on but i'm not sure. i really notice the hit the next day at work. i'm usually at 90% around noon (i take my phone off the charger around 7:30) and if i used wifi the day before i will notice i'll be at 50-60% by lunch. for example i went the entire day today, used my phone like crazy at lunch time and just got off a 10 min video call with my kid and my battery is at 37%. if i had used wifi before this charge the phone wouldn't have made it to this point without needing a recharge.
DualSportDad said:
just so i'm clear.... i notice the drain after i turn off wifi, the drain could start as soon as i turn it on but i'm not sure. i really notice the hit the next day at work. i'm usually at 90% around noon (i take my phone off the charger around 7:30) and if i used wifi the day before i will notice i'll be at 50-60% by lunch. for example i went the entire day today, used my phone like crazy at lunch time and just got off a 10 min video call with my kid and my battery is at 37%. if i had used wifi before this charge the phone wouldn't have made it to this point without needing a recharge.
Click to expand...
Click to collapse
This seems similar to what I've seen. I'm fairly certain it happens with wifi both on and off, but as I said, I do have it toggle every day. I reboot my phone a lot because of Xposed module updates, but I disabled the wifi toggle task that I have Tasker run every morning and afternoon, I will try to see if it still happens.

Oneplus One dies at 20% battery charge rate

Few days back, my phone died even if it showed that battery has about 20%. Since then, my phone dies always near 20% charge state. Before it does, screen is flickering a little bit.
But so far I've observed, my phone runs about 1 hour and it still shows 100%. After that, it starts to drop. I've tried some calibration, but it never worked.
Do you know, how I can repair this or it's a subject for official repair? I would've tried to buy new batteries, but since it's OPO where batteries cannot be changed, or can be, but it brakes warranty so...
Thank you guys, appreciated.
How old is your OPO? What ROM did you use? Any custom kernel / details etc?
My OPO works fine on CM11 nightlies, stock kernel but rooted.
It's max 5 months old and I've never experienced such an issue. Down you have screenshot. I'm running stock ROM and everything. Hope it will help
defect device
korynkaaa said:
It's max 5 months old and I've never experienced such an issue. Down you have screenshot. I'm running stock ROM and everything. Hope it will help
Click to expand...
Click to collapse
I think you have to send it back to 0ne+ and take your warranty claim.
greetings
Same issue Here!
korynkaaa said:
Few days back, my phone died even if it showed that battery has about 20%. Since then, my phone dies always near 20% charge state. Before it does, screen is flickering a little bit.
But so far I've observed, my phone runs about 1 hour and it still shows 100%. After that, it starts to drop. I've tried some calibration, but it never worked.
Do you know, how I can repair this or it's a subject for official repair? I would've tried to buy new batteries, but since it's OPO where batteries cannot be changed, or can be, but it brakes warranty so...
Thank you guys, appreciated.
Click to expand...
Click to collapse
I have the same issue here. Bought my One on August, running stock, suddenly since a few days ago the phone goes dead on 20% or 16%.
I hope there is a solution for this, different from "send it back".
Katra78 said:
I have the same issue here. Bought my One on August, running stock, suddenly since a few days ago the phone goes dead on 20% or 16%.
I hope there is a solution for this, different from "send it back".
Click to expand...
Click to collapse
I think you might get a faulty battery. This happened with my old galaxy note too. Changed battery and every issue is gone.
Got same issue since a few days, how to manage?
has anyone tries this https://forums.oneplus.net/threads/phone-switches-off-when-at-20-low-battery.157075/
27%
Same issue started happening with me too. Phone touched 25-27% mark and goes off suddenly. It was fine from last 3 weeks and from last 2 days, it is giving me this issue. I will try doing factory reset. Hope it works.
PS: I am on stock 38R without root.
has factory reset worked?
Reset doesn't work. It's software problem. A lot people having same issue.
Mine even worst. switched off about 35%. and lasted about 12 hours stuck on 100%.
I've done flash to stock 33R, 38R. clear everything. same. doesn't help.
Open up the phone dialer: type *#*#4636#*#*
This should bring you up to a "secret" settings page. Click on battery information. There you can check battery health!
Replied to a similar thread. I experienced the same issue where it stays at 100% for hours and died around 17%. Happened twice. What I did was turned off the phone and charged it full. Turned it on, waited a couple of minutes or so before unplugging. Had to make sure all apps in the background are up. So far it it fixed the problem for me.
Hope that helps.
Sent from my OnePlus One®
I've tried out an apps call "Easy Battery Calibration" can be downloaded from playstore. for rooted devices only.
After using it. it seems okay right now. 100% no longer holds up few hours. drop 2% about 1.5 hours usage.
Looks neat. still waiting for the battery depleting .
reinerlee said:
I've tried out an apps call "Easy Battery Calibration" can be downloaded from playstore. for rooted devices only.
After using it. it seems okay right now. 100% no longer holds up few hours. drop 2% about 1.5 hours usage.
Looks neat. still waiting for the battery depleting .
Click to expand...
Click to collapse
Sorry, just got down to about 37%. it shuts off.
minicoop7 said:
Replied to a similar thread. I experienced the same issue where it stays at 100% for hours and died around 17%. Happened twice. What I did was turned off the phone and charged it full. Turned it on, waited a couple of minutes or so before unplugging. Had to make sure all apps in the background are up. So far it it fixed the problem for me.
Hope that helps.
Sent from my OnePlus One®
Click to expand...
Click to collapse
This works. But do i have to do that each time for charging?
lp4u said:
This works. But do i have to do that each time for charging?
Click to expand...
Click to collapse
Not really. Only did it when it died at17%. There may be some app updates that causes it. In my case I think the culprit is Gsam. Cause when it updated, it messed up the calibration. But then again, it could've been other apps that updated at that time too ☺
Sent from my OnePlus One®
I faced this previously. Phone died around 40%. Install battery calibration app from play store. Calibrated my batt and all ok till date. Rooted and on fk kernel back then.
here's the fix. no need to install additional app. no root needed.
NOTE: do this at night, just before you decide to go to bed.
1. let the device turns off itself. no matter at which battery level.
2. while the device is powered off, charge it for at least 6 hours. do not interrupt the charging. do not turn on the phone. and do use the original charger and cable.
3. once the phone is charged for at least 6 hours. turn it on and use it as per your usual way.
4. repeat step 1 to 3 for another 2 times. then the phone's battery calibration will be fixed.
I see you are on 38R .. Have you updated to 44?
Sent from my Nexus 4 using XDA Free mobile app
Working. Thabks.
Wondering what caused this nevertheless.
Another issue is that never before when the battery was enpty that i saw that screen with chinese words. Is that new?

How much battery you get?

Yesterday I recharged my H8 phone with my LeEco quick charger upto 97%.
I played games for 3 hours and 28 minutes and battery level came down to 9%.
Is this normal?
I'm running on stock EMUI and it has no root. Just has some 5-6 apps installed from play store like WhatsApp, fb Messenger, XDA....
And yeah I lost ~15% over night. ?
Yep,it's normal. In gaming i get like 3:30h sot and in normal use like 5-6h sot
3:30 while playing is OK, might be better with closing apps in background and using 720p.
During night 15 % is too much. You need either to change protected apps, or close all apps/turn off internet before going to sleep.
For me its 1-2% during night.
duox said:
3:30 while playing is OK, might be better with closing apps in background and using 720p.
During night 15 % is too much. You need either to change protected apps, or close all apps/turn off internet before going to sleep.
For me its 1-2% during night.
Click to expand...
Click to collapse
There are no protected apps. And everything was pretty clean before I sleep. There weren't any installed apps opened in the background
Alok Bajaj said:
There are no protected apps. And everything was pretty clean before I sleep. There weren't any installed apps opened in the background
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It's too much,i loose like 3 to 5% every night with only one app protected "Messenger" (facebook) and Wi-Fi off.
the drain overnight is due to facebook, messenger and whatsapp. they open in the background even after you close them using resources.
jkccl9 said:
the drain overnight is due to facebook, messenger and whatsapp. they open in the background even after you close them using resources.
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I don't have FB app in my phone. And the messenger and WhatsApp synced this morning when I opened them. So probably those apps were asleep.
That 15% overnight isn't normal
CronaMell said:
That 15% overnight isn't normal
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What can be done for that? I don't want to root this phone yet.
Alok Bajaj said:
What can be done for that? I don't want to root this phone yet.
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An OTA or factory reset
CronaMell said:
An OTA or factory reset
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There's no ota now.. I've done a factory reset already.
This morning it's all the same. ~15% gone. It always stops at 10% in morning. Last day also 10% in the morning
EMUI has built in battery management, if you charge it up to 100% before you go to sleep and come back and check in the morning, it should tell you what consumed your battery
macbuggo said:
EMUI has built in battery management, if you charge it up to 100% before you go to sleep and come back and check in the morning, it should tell you what consumed your battery
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I had the same issue, but when I turn off Wifi and Data it drains around 1% instead off around 15 - 20%.
Do I have to do a factory reset to make it work like normal, because it makes me pissed of that doze won't work as it should :/
Because when I put my phone on a table and just use my computer instead, I don't want it to drain :/
Alok Bajaj said:
Yesterday I recharged my H8 phone with my LeEco quick charger upto 97%.
I played games for 3 hours and 28 minutes and battery level came down to 9%.
Is this normal?
I'm running on stock EMUI and it has no root. Just has some 5-6 apps installed from play store like WhatsApp, fb Messenger, XDA....
And yeah I lost ~15% over night. ?
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First of all, use the supplied charger that came with your device. As the Honor 8 has fast charging capabilities that require the use of the charger that came with the device. While you can use a different charger to charge the Honor 8, it will charge slower than with the supplied charger that came with the device.
Also depending on the game you are playing, the power consumption on your device will vary.
I had the same issue, but when I turn off Wifi and Data it drains around 1% instead off around 15 - 20%.
Do I have to do a factory reset to make it work like normal, because it makes me pissed of that doze won't work as it should :/
Because when I put my phone on a table and just use my computer instead, I don't want it to drain :/
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If You have either a weak data/and or wifi signal where you live this will usually cause excessive battery drain even overnight because your phone is constantly searching to keep connected to your network or to your mobile carrier. This is probably not something that a factory reset would solve.
Once again EMUI has built in battery management. YOU CAN CHECK AND IT TELLS YOU WHAT CONSUMED YOUR BATTERY. If it's an app, it'll tell you which app, unless it's hidden as Android System or Android OS, in which case it's something Google related. If you don't have a data connection then the offending app might not be able to do anything, it doesn't necessarily mean you have a weak network signal. Even if it was, it would tell you how much of the battery was spent searching for signals.
bought this phone as a back up for my 7 Plus. I'm loving it, very nice and getting just over 6hrs screen on time. No where near my 7 Plus but still great. Nougat is great too.
Getting double the SOT of my nexus 5x. Very satisfied!
@Alok Bajaj, there may be an app keeping your phone awake at night. Check that in battery manager.
Also, I keep my phone in airplane mode at night.
yalokiy said:
Getting double the SOT of my nexus 5x. Very satisfied!
@Alok Bajaj, there may be an app keeping your phone awake at night. Check that in battery manager.
Also, I keep my phone in airplane mode at night.
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I'm impressed to hear that. Then again the Nexus 5X had horrible battery life.
Well I'm thinking of normal use case scenario here. Normally people don't turn on and off stuff everyday and night. Usually WiFi and cellular is always on in every phone. This weird that you put your phone in airplane mode at night to save battery.

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