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Hi,
(I did search on google and xda).
No solutions found so far.
On my nexus S (no 4g); the screen turn off when the battery was about at 20%.
Impossible to get it back on. The backlight is very very very low, I can say almost off. In a absolute dark I can see the screen to make my backups.
What I tried :
- Complete flash rom ( running CM7)
- Hard reset
- Battery change
- Using the device on AC power
My guess is that the phone's dead because even on boot the backlight's off.
So far, on the internet, it seems to be a recurrent problem...
Any solution? BTW : this device is from a exchange on a old warranty. It's about 2 month old and I can't return it back...
Thanks
How about Pull the battery out for a night to let it lost power and memory at all.
Accidentally sent from my Google Nexus S using XDA Premium
melvinchng said:
How about Pull the battery out for a night to let it lost power and memory at all.
Accidentally sent from my Google Nexus S using XDA Premium
Click to expand...
Click to collapse
Done, but only for 4 hours...
I'll try for a night.
Thanks
Worth a try but it really sounds like the display is broken. Still got warranty? You should also try to flash stock and "oem lock" it before, obviously.
So, yesterday I noticed a sudden battery drain on my nexus 4. After checking battery it showed that AndroidOS takes over about 50% of the battery usage. It also showed that time awake was pretty much the same as the amount of time since I unplugged the phone, even though I kept my phone in sleep mode for the most of the day. After some research I downloaded better battery stats and it showed that from the moment I turn the screen off a process called suspend_backoff runs pretty much the entire time. Eventually I got it down to wifi. If I turn off wifi there are no processes running after the screen is turned off (or if there are they are 30 seconds tops), but the moment I turn wifi on suspend_backoff runs pretty much the entire time screen is off. I tried removing all of my apps, as well as doing factory reset but nothing helps. The moment I turn wifi ON this suspend_backoff consumes pretty much all the time during screen off period. Is anyone experiencing anything like this ? I have 4.2.2 on the phone and I havent' seen this extreme drain until just yesterday.
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
hihihoho said:
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
Click to expand...
Click to collapse
how did you narrow it down? Im having the same problem!
This is caused by a kernel wakelock. A bad mobile connection make battery drain worse... using WLAN nearly fixes this problem.
Thought this problem has got fixed in 4.2.2, at least battery life got improved and the wakelock reduced.
If it is appearing since yesterday, it is triggered by a app often waking the phone up using mobile data (that's why fixed with WLAN) and prevent the phone from getting into deep sleep as fast as it should.
hope i could help.
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
AW: Battery drain on nexus 4 since yesterday
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
Click to expand...
Click to collapse
as i said before, an app needs data, so it starts callung the kernel wakelock... this one causes tje drain, not the app itself
Sent from my Nexus 7 using xda app-developers app
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
Click to expand...
Click to collapse
Yeah, definitely not user apps. I did full reset on the phone to factory settings, no user apps. Even tried disabling Google Play and Google store after the reset. Still the same. The only thing that gets rid of it is disabling WiFi.
hihihoho said:
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
Click to expand...
Click to collapse
When did you start noticing this ? Has it been for a while or just recently ? I first noticed it yesterday (had the phone for a bit over a month now, didn't see any issues until just yesterday)
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
Click to expand...
Click to collapse
What is the difference between greenify and limit background apps in developers options?
AW: Battery drain on nexus 4 since yesterday
stop discussing, use search instead... http://forum.xda-developers.com/showthread.php?t=1999368
like i told you 3times now.... it's the wakelock
Sent from my Nexus 7 using xda app-developers app
indoh said:
stop discussing, use search instead... http://forum.xda-developers.com/showthread.php?t=1999368
like i told you 3times now.... it's the wakelock
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Yeah, it's clear that it's the wakelock. What's not clear is why. Also it's not the msm_hsic_host that the forum link you sent refers to. I don't have a problem with msm_hsic, that one barely takes any time during the day (maybe 30 seconds during several hours of standby). The wakelock causing this particular issue is "suspend_backoff" wakelock which supposedly happens when there is a sequence of sleep/wake calls too close together so the system decides to keep it awake. I was unable to find what exactly is causing the issue, even after restoring to the factory settings I kept seeing the same problem.
Anyway, I was able to "resolve" it by installing JuiceGuard app and setting it so it disables wifi when the screen is off. wakelock is gone now and my battery usage is back to normal.
I only get the suspend backoff wake lock when I'm connected to the university Wifi. When I'm at home, everything is fine, no suspend backoff. So my guess is that the Wifi encryption at university is different and causing a succession of close "awake" and cause wake lock.
I did factory reset like 3 times and it still there.
I'll try disable Wifi on Monday and see how it goes.
Same here, when wifi disabled the wakelock doesn't occur.
I have tried almost all of the kernels and non of them seem to help.
hihihoho said:
I only get the suspend backoff wake lock when I'm connected to the university Wifi. When I'm at home, everything is fine, no suspend backoff. So my guess is that the Wifi encryption at university is different and causing a succession of close "awake" and cause wake lock.
I did factory reset like 3 times and it still there.
I'll try disable Wifi on Monday and see how it goes.
Click to expand...
Click to collapse
Interesting... Maybe it is encryption. One thing with my Wifi is that it doesn't use password, but MAC list instead. It may indeed be an issue with different wifi encryption types.
OP do you have maps 6.14 on your phone? Mine kept switching on location reporting for a while and it woke my phone 344 times last night. I've been struggling with the same wake lock issues. I'm going to recharge (again) with maps disabled and see if that helps.
Sent from my Nexus 4 using Tapatalk 2
Check your Google account sync settings... In settings
The clowns may have left you a lovely gift there without telling you or asking any kind of permission.
The latest Maps was giving me horrible battery drain, on WiFi. I'd sleep for six hours with a fully charged phone and wake up with 10% left. it even enabled itself when. I disabled it in settings. I converted it to a user app by moving it to /data/app and greenified it. Seemed to have solved all of my issues with the suspend back off wake lock.
Download greenify
Sent from my Nexus 7 using Tapatalk 2
For some weird reason, I was also having serious battery drain suddenly since yesterday.
Turned out it was maps, and disabling Google network locations hugely increased battery life
Sent from my Nexus 4
Over the weekend I bought a new Galaxy S4 on the Bell network in Canada (model SGH-I337M). I used it Saturday and Sunday without any problems, getting about 4-5 hours of screen on time per day. On Monday I went to work and used my phone a lot less, but noticed I only got about 2.5 hours of screen on time before I had run down the battery. I looked at the battery stats and saw that Maps was consuming a lot of battery (considering I had not opened Maps that day), but thought little of it. Yesterday my battery life was even lower, after 1 hour of screen on time I had about 50% battery left and Maps was responsible for 70% of battery usage.
Here are screenshots I took at the end of yesterday to show the battery consumption:
End of day screen on time
Battery graph (note that Maps is using about 70% of my battery)
Usage details for Maps
Why did Maps keep the phone awake for almost 2 hours when I didn't even open it? This morning I've been off the charger for 1.5 hours and Maps has already had 10 minutes of stay awake time.
I've rebooted the phone, disabled location sharing (Latitude), disabled GPS (as you can see though, Maps only used the GPS for 2.5 minutes) and I don't know what to do now to fix this. Does anyone know how I can stop this?
disable the map's app if u don't use it
Blackwolf10 said:
disable the map's app if u don't use it
Click to expand...
Click to collapse
I do use Google Maps fairly often, I'd rather avoid disabling it if I can.
Go to settings / more / application manager / maps >> force stop >> clear data & cache >>> reboot
Sent from my GT-I9500 using xda premium
UpInTheAir said:
Go to settings / more / application manager / maps >> force stop >> clear data & cache >>> reboot
Sent from my GT-I9500 using xda premium
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Click to collapse
It seems like that's helped, for now at least...Maps still claims to be taking up most of the battery but stay awake time has only been about a minute and a half. Thanks!
In google maps app setting disable location reporting and enable location sharing.
Sent from my GT-I9505 using xda app-developers app
Did you use a widget that uses maps on your homescreen.
I added a go home button to my homescreen. It drained my battery. Took me a while to find the culprit.
Sent from my GT-I9505 using xda premium
Vosje986 said:
Did you use a widget that uses maps on your homescreen.
I added a go home button to my homescreen. It drained my battery. Took me a while to find the culprit.
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
I was using the weather widget that was already on the homescreen but I removed it to see if that was the problem, it wasn't.
Interestingly enough however it still says Maps is responsible for 63% of my battery usage...with 7 minutes 26 seconds of stay awake time after 10 hours. Screen (with 1.5 hours screen on time) is at 24%, and I have 52% battery remaining. I installed BetterBatteryStats but I don't see any unusual wakelocks or anything like that.
Sadly I do not have any advice to you. Just posting to let you know that I am also in the same boat.
For the past three days, Maps has done this. Today, it was fine. I changed nothing in between then and now. Weird.
got_milk said:
Over the weekend I bought a new Galaxy S4 on the Bell network in Canada (model SGH-I337M). I used it Saturday and Sunday without any problems, getting about 4-5 hours of screen on time per day. On Monday I went to work and used my phone a lot less, but noticed I only got about 2.5 hours of screen on time before I had run down the battery. I looked at the battery stats and saw that Maps was consuming a lot of battery (considering I had not opened Maps that day), but thought little of it. Yesterday my battery life was even lower, after 1 hour of screen on time I had about 50% battery left and Maps was responsible for 70% of battery usage.
Click to expand...
Click to collapse
Got my t-mobile UK 9005 yesterday and after just 30 mins Maps was using 14% of my battery second only to the screen. That's default just turned it on. Something very wrong here. (rebooted a few times and rooted)
Left the device over night first thing this morning checked battery. Maps 63% battery usage and battery had gone from 99% to 82% while just on standby. Something very wrong here!
Now I noticed that i have app like DailyMotion and Deezer installed for me that cant be uninstalled without a root app like debloater. Wondering if the issues here are less android OS and more badly behaving apps grabbing location data. (made all the more difficult by Plays auto download of old apps, hard to diagnose which app is the culprit)
Ive reset to factory settings and prevented any auto installs and after 3 mins theirs is no sign of Google Maps being used... wonder if we need to factory reset our device to wipe this issue out?
Can we start to collate the problem? Please state which handset model you have, firmware and network.
GT-i9005 / UAMDD / T-mobileUK (EE)
Perhaps some of the new Samsung services?
JmJ17 said:
Perhaps some of the new Samsung services?
Click to expand...
Click to collapse
About one hour in since i factory restored the handset, setup G+ and a few other known location hogs and Google maps has NOT returned to my battery stats! as I said earlier it was their from the moment I turned the device on when I got it.
Give a factory reset a try and see if you get the same result as me folks...
---------- Post added at 08:44 AM ---------- Previous post was at 08:15 AM ----------
androidizen said:
About one hour in since i factory restored the handset, setup G+ and a few other known location hogs and Google maps has NOT returned to my battery stats! as I said earlier it was their from the moment I turned the device on when I got it.
Give a factory reset a try and see if you get the same result as me folks...
Click to expand...
Click to collapse
I've created a video explain the problem I had in more detail and show the fix that worked for me, hope it helps others:
I tried a factory reset last night but again this morning Maps was keeping the phone awake (about 5 minutes of stay awake time after an hour and a half off the charger). I disabled Location History in the Maps app and now Maps has dropped right off of the battery stats screen, and it's been gone for a couple of hours now. If anyone else is having this issue, it might be worth a shot - I don't use/care about Location History anyway.
HOW TO:
Go to : [Phone setting => Accounts => Google => Location setting => and TURN IT OFF!!]
Fully charge your phone and job done... no more maps on stats.......
enjoY!!
djembey said:
HOW TO:
Go to : [Phone setting => Accounts => Google => Location setting => and TURN IT OFF!!]
Fully charge your phone and job done... no more maps on stats.......
enjoY!!
Click to expand...
Click to collapse
But it's this setting supposed to be turned on if I use Google Maps or Google Now? I use these two quite often.
Disabled auto location updating and sharing, etс but maps are giving me headache constantly. Once they ate 30% of batter overnight and currently network location passive collector wakelock is troubling me.
Al Gore said:
Disabled auto location updating and sharing, etс but maps are giving me headache constantly. Once they ate 30% of batter overnight and currently network location passive collector wakelock is troubling me.
Click to expand...
Click to collapse
Damn. This is giving me huge headache. If I hold my phone for 10 mins using internet, battery drains about 5%. Insanity.
henrykkim said:
Damn. This is giving me huge headache. If I hold my phone for 10 mins using internet, battery drains about 5%. Insanity.
Click to expand...
Click to collapse
Well it's about right mathematically. 5% = 10 mins so 100% = 200 mins = 3.3 hours of onscreen time. Personally max I've managed to get is 4 hours, very disappointing battery life so far for me.
There is another Maps / location power sucking app called Story Album ....Samsung Bloatware I guess. Anyway when you open the app, goto settings, click Home City > Select Method > set to None. In the lower part called Album content de-select City information, Location etc..
Turn off lication reporting and tick location sharing in maps app settings->location
Sent from my GT-I9505 using xda app-developers app
See the attached picture, this battery drain happens every day and takes up more then the screen so I'll finish the day with 1.5 to 2 hours SOT while over 50 percent is sucked up by the OS. Any fixes?
Sent from my Nexus 4 using xda app-developers app
How do I fix this
Sent from my Nexus 4 using xda app-developers app
This happens sometimes and seems to be triggered by the Location service (even with GPS off - but with wifi/data location on). It seems sometimes the phone is kept on a wake lock state which doesnt allow it to properly enter sleep mode.
When it happens, try rebooting your phone. That fixes it for me. It happens sometimes (about 1x every 2 weeks), and the reboot always fixes it.
Has anyone had issues with really bad battery drain on newest update?
Sent from my Nexus 4 using Tapatalk
I haven't noticed a drop in battery life after upgrading from CM10.2 to stock 4.4.2.
I have very few apps on my phone and I keep wifi and data off when I'm not using my phone.
audit13 said:
I haven't noticed a drop in battery life after upgrading from CM10.2 to stock 4.4.2.
I have very few apps on my phone and I keep wifi and data off when I'm not using my phone.
Click to expand...
Click to collapse
It was my GPS eating up my battery. Mixed with the weather channel app. My battery was dead in 7 hrs.
Sent from my Nexus 4 using Tapatalk
Bad Battery Life
Hi
Yes, I have noticed a dramatic drop in battery life. I use to get home from work about 6pm with about 50% battery life. Now by 2pm I'm less than 10%.
No Bluetooth. No GPS. No NFC (this was originally on when getting to 6pm). WiFi on. WiFi Off. Doesn't matter. Turned location services to battery save or off. No new apps.
I have converted runtime to ART (worth having a read up on this), which can potentially give up to 20-30% better battery.
The funny thing is at home with full WiFi and strong 3G reception the battery life is exceptional! 2-3 days standby (light/medium use). The 3G reception at work.
A friend suggested that possibly the radio (3G) isn't locking on to a specific tower and keeps bouncing between towers chewing up the battery.
I will try a factory reset and see if it fixes the problem. From what I've been able to discover online it doesn't seem to be a very common problem.
Same Here
My girlfriend is having the same problem with battery drain.
GPS is off and she's using Wi-Fi at home.
When Google rolled Kit Kat OTAs I had to wipe her phone and flash the official Mako factory images to actually get it updated. So the phone isn't rooted and It's completely stock now. The 4.4.2 OTA update installed just fine. Then she noticed the poor battery life. Android system and Android OS are the 2 highest battery users in the list (will try to get a screenshot of this later)
Is the factory reset working for any one?
Has a reinstall of the factory images fixed this?
Any other suggestions?
Just wanted to ask everyone before I spent a bunch of time on it.
Thanks so much!
factory reset doesn't resolve
I did a factory reset and the issue still exists. I have removed 1/3 of my apps, 80% of the photos on my phone. I tried running Bluetooth off 100% of the time. Turned off location reporting. Turned off syncing any Google service I wan't using. None of these helped. My problem is intermittent. I will make a change then go a couple of days thinking "problem solved," then on the third day massive battery drain reoccurs. I think the battery monitor in the OS is unreliable when this occurs becasue it will report an app like "Flixter" as the main source of the drain. The next time it will be mediaserver, or TV Guide.
jclake said:
I did a factory reset and the issue still exists. I have removed 1/3 of my apps, 80% of the photos on my phone. I tried running Bluetooth off 100% of the time. Turned off location reporting. Turned off syncing any Google service I wan't using. None of these helped. My problem is intermittent. I will make a change then go a couple of days thinking "problem solved," then on the third day massive battery drain reoccurs. I think the battery monitor in the OS is unreliable when this occurs becasue it will report an app like "Flixter" as the main source of the drain. The next time it will be mediaserver, or TV Guide.
Click to expand...
Click to collapse
You got a lot of apps it sounds like. My problem has been eliminated sense removing weather channel app. Been good for two weeks
Sent from my Nexus 4 using Tapatalk
Same problem.
I have read millions of forums and this problem is not going away. I also have intermittent battery drain - it works for a few days and then everything goes back to sh-it. I've tried everything - deleting apps, turning off all services i don't use, power saving mode, sync, GPS, and nothing works.
Metal72 said:
My girlfriend is having the same problem with battery drain.
GPS is off and she's using Wi-Fi at home.
When Google rolled Kit Kat OTAs I had to wipe her phone and flash the official Mako factory images to actually get it updated. So the phone isn't rooted and It's completely stock now. The 4.4.2 OTA update installed just fine. Then she noticed the poor battery life. Android system and Android OS are the 2 highest battery users in the list (will try to get a screenshot of this later)
Is the factory reset working for any one?
Has a reinstall of the factory images fixed this?
Any other suggestions?
Just wanted to ask everyone before I spent a bunch of time on it.
Thanks so much!
Click to expand...
Click to collapse
I have the same issue, Android System drains more Battery then screen, my Phone doesn't have root...
so without root I can't Use wakelock detector...
Gesendet von meinem SM-N9005 mit Tapatalk
Bad to worse
Exit_Only said:
You got a lot of apps it sounds like. My problem has been eliminated sense removing weather channel app. Been good for two weeks
Sent from my Nexus 4 using Tapatalk
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Click to collapse
Thanks for that note! I know my gf uses the weather channel app. Will tell her to remove it.
On a similar note. Now a few months later now and her battery wont hold a charge for more than 2 hours and wont charge to 100% every time. Her phone is only a year old. luckily she called google 2 days before the 1 year warranty was up. They sent instructions on safe mode and some other tips. Hopefully she'll end up with a new battery and i'll make sure shes not using weather channel haha.