Hello, I know there have been a lot of talk around this problem(h2_hsic wakelock), but I haven't been watching the development of the issue lately, tried to find positive solutions on the matter via search .. with no luck.
So, my question basically is, is there official samsung ICS rom from any region which doesn't have this problem? Are they all spoiled? I've tried only the italian one, I see there are several more now!
regards
i am using indian stock ICS and i dont have battery drain problem.try it and then tell us
Hello, I'm going to try the Polish fw, since its the last release on SamMobile. I'm getting the impression that the only solution now, with the officials is to use the so called A1 kernel.
regards.
arizal said:
Hello, I'm going to try the Polish fw, since its the last release on SamMobile. I'm getting the impression that the only solution now, with the officials is to use the so called A1 kernel.
regards.
Click to expand...
Click to collapse
do let us know the results
Still draining
Ferashtc said:
do let us know the results
Click to expand...
Click to collapse
Flashed the polish kernel yesterday with kies. Got draining from 71% to 38% over night. Mobile Data off, Wifi off, Bluetooth off and GPS off.
3.2 was much better.
Br Martin
S_Hammer said:
Flashed the polish kernel yesterday with kies. Got draining from 71% to 38% over night. Mobile Data off, Wifi off, Bluetooth off and GPS off.
3.2 was much better.
Br Martin
Click to expand...
Click to collapse
I agree. With 3.2 my tablet could hold power almost 2 weeks
Sent from my HTC One X using xda app-developers app
try 3 things more in settings
1.turn off sync for your accounts
2.turn wifi option to only when plugged in
3.in mobile data turn off data usage
also install cpyspy to check if tab goes into deep sleep or not
do let me know the results after you are done with these settings.
Ferashtc said:
try 3 things more in settings
1.turn off sync for your accounts
2.turn wifi option to only when plugged in
3.in mobile data turn off data usage
also install cpyspy to check if tab goes into deep sleep or not
do let me know the results after you are done with these settings.
Click to expand...
Click to collapse
1. Mobile data and wifi has been switched of, so how should it sync?
2. Wifi was turned of completle as I always do during night
3. Was turned of (read the post)
cpuspy says 7:15 out of 17:50h deep sleep. Does not fit to the actual usage.
S_Hammer said:
1. Mobile data and wifi has been switched of, so how should it sync?
2. Wifi was turned of completle as I always do during night
3. Was turned of (read the post)
cpuspy says 7:15 out of 17:50h deep sleep. Does not fit to the actual usage.
Click to expand...
Click to collapse
Same problem here.
If i let the GSM on i get deep sleep. Did you try it?
Meanwhile, tried already XXLQ8, XWLP5, XWLP6 and also tried several modems. If i check my tablet every 2 hours (just switch on the screen and open CPU SPY, then close it), i'm able to have a total deep sleep. During night, after approximately 2 hours, there comes the l2_hsic again.
Still looking for a solution before flashing the a1 kernel.
With the Honey Comb i had no battery drain. Here it's approximately 1% per Hour if it does not enter deep sleep.
Phibs said:
Same problem here.
If i let the GSM on i get deep sleep. Did you try it?
Meanwhile, tried already XXLQ8, XWLP5, XWLP6 and also tried several modems. If i check my tablet every 2 hours (just switch on the screen and open CPU SPY, then close it), i'm able to have a total deep sleep. During night, after approximately 2 hours, there comes the l2_hsic again.
Still looking for a solution before flashing the a1 kernel.
With the Honey Comb i had no battery drain. Here it's approximately 1% per Hour if it does not enter deep sleep.
Click to expand...
Click to collapse
Yep more 2%. I have flashed the A1 kernel now. After some hours I found a really helpfull and easy way to do it. Even the Look here first page does not help so much, because it didn't tell you to first install CMW, then root (Still not sure if I have to) and then flash the A1 kernel. But aftr some reading it worked in 10 Mins. I will flash back to 3.2 if there is still some draining
Even draining with STOCK and A1 kernel
My tab starts draining again even with the A1 kernel flashed (See attachment). I think I will go back to Stock 3.2.2. if I don't find the reason for this.
And yes everyhing was switched of => Sync,WiFi, mobile data and GPS.
Same problem here - stock ICS + A1kernel. The drain stops when i kill all apps, but once you start using the device the drain will pick up and not stop again. Mind that my usage is mainly browsing and emailing. Cpu spy shows it's been in deep sleep most of the time. Any advice appreciated.
Sent from my GT-P7500 using xda app-developers app
arizal said:
Hello, I know there have been a lot of talk around this problem(h2_hsic wakelock), but I haven't been watching the development of the issue lately, tried to find positive solutions on the matter via search .. with no luck.
So, my question basically is, is there official samsung ICS rom from any region which doesn't have this problem? Are they all spoiled? I've tried only the italian one, I see there are several more now!
regards
Click to expand...
Click to collapse
I noticed battery drain issue several days ago and adopted several methods to resolve it on my Galaxy Tab 10.1 3G P7500 running stock ICS 4.0.4 Italy version.(rooted). It appears to me that (h2_hsic wakelock) is the root cause for the battery drain in ICS 4.0.4 released for P7500 Tabs by Samsung. This issue should be resolved by Samsung forthwith to safe guard the interest of its esteemed customers. I hope all the members would also make similar request to Samsung.
sooramma said:
I noticed battery drain issue several days ago and adopted several methods to resolve it on my Galaxy Tab 10.1 3G P7500 running stock ICS 4.0.4 Italy version.(rooted). It appears to me that (h2_hsic wakelock) is the root cause for the battery drain in ICS 4.0.4 released for P7500 Tabs by Samsung. This issue should be resolved by Samsung forthwith to safe guard the interest of its esteemed customers. I hope all the members would also make similar request to Samsung.
Click to expand...
Click to collapse
I have attached a picture to my last post, but that seemed to be to big. Looks like my tab wakes up nearly every hour and drains for some minutes. Don't know where that comes from.
Same here. I am on stock ital.ics rooted and got no deep sleep. After I have read a lot about a1 I followed the advices, flashed it and my problem got solved for a couple of weeks. Now it came back again.I switch off my tab, it enters deep sleep but after some time it went back on 216mhz and stays there. What about pershots cm builds, could this help me?
Sent from my GT-P7500 using XDA Premium HD app
Facebook Up sync settings
Hello again,
this strange draining started somehow after reinstallation of all apps. I'm not sure, but could it be that the starting stopping behaviour is connected to the autosync interval of the facebook app? I switched it of now and lets see what happens.
any new developments on this? and how about installing jelly bean?
Still draining
My tab is still draining, even with A1 kernel. I think about going back to 3.2. I have already removed the facebook app, but it looks like there are other programs wking up my tab and I don't know why.
Same here. Stock kernel XWLP6, root and A1. Deep sleep problems yesterday. 7 hours of l2_hsic.
I'm on the same boat as you guys. Tried first with italian 4.0.4, now I'm with poland - the same drain - 22% for 15 hours. I've tried calibrating the battery, following the instruction from one of the threads, but I was happy only for a day or so. Now I've tried uninstalling the samsung puch service and removing my samsung account.
Related
My galaxy note is constantly displaying Android OS use between 50-70%.
Anyone else experiencing this issue?
Flash a Custom Kernel based on 2.6.35.14 (2 are available). This solves the problem.
thanx for the suggestion.
But i'd rather keep the stock firmware, for now, as this is my first android..don't wanna risk a brick.
From other threads i've read, there's a newer firmware 2.3.6 available for the germany galaxy notes. Any idea if it fixes this bug...its really annoying..i've already done factory resets thinking it may fix it .
I bought my note in st Louis USA . It had european charger and strange language that I don't recognize . it came as KJ4 build . So I don't know from what european country my note came but I downloaded and flashed Hong Kong rom 2.3.6 and its pretty good with battery , wifi , etc . I am just really disappointed with camera . My battery usage for android OS = 8% and Android system 7% . This link might help you . http://leemn.wordpress.com/2011/11/13/rooting-and-installing-cwm-for-the-samsung-galaxy-note/
abirsharda said:
thanx for the suggestion.
But i'd rather keep the stock firmware, for now, as this is my first android..don't wanna risk a brick.
From other threads i've read, there's a newer firmware 2.3.6 available for the germany galaxy notes. Any idea if it fixes this bug...its really annoying..i've already done factory resets thinking it may fix it .
Click to expand...
Click to collapse
It definitely fixes it on the German Note... at least mine
I had/have the same issue. I flashed the latest KKA ROM which flahes the KK5 modem. I deodexed it and turned off some unwanted system apps. Running the CF-Root KKA kernel and Android OS spikes to about 30-40% at times. I don't think it really has much affect on battery life. From what I understand and have read, it has to do with wifi Scanning repeatedly. You can adjust your wifi sleep policy to help this.
abirsharda said:
My galaxy note is constantly displaying Android OS use between 50-70%.
Anyone else experiencing this issue?
Click to expand...
Click to collapse
If it's keeping your phone 'awake' then you should install BetterBatteryStats which monitors Wakelocks. It'll tell you what OS services are going nuts.
It's happened to me a few times with rogue programs and USB host going crazy when I don't unmount correctly.
- Frank
Same thing happening to me? Do you experience heavier drain on wifi than 3g?
Sent from my GT-N7000 using Tapatalk
budalica said:
I bought my note in st Louis USA . It had european charger and strange language that I don't recognize . it came as KJ4 build . So I don't know from what european country my note came but I downloaded and flashed Hong Kong rom 2.3.6 and its pretty good with battery , wifi , etc . I am just really disappointed with camera . My battery usage for android OS = 8% and Android system 7% . This link might help you . http://leemn.wordpress.com/2011/11/13/rooting-and-installing-cwm-for-the-samsung-galaxy-note/
Click to expand...
Click to collapse
thanx but for now i don't wanna flash a custom rom.
kramdens said:
It definitely fixes it on the German Note... at least mine
Click to expand...
Click to collapse
So you got the update through Kies or OTA?
ookba said:
I had/have the same issue. I flashed the latest KKA ROM which flahes the KK5 modem. I deodexed it and turned off some unwanted system apps. Running the CF-Root KKA kernel and Android OS spikes to about 30-40% at times. I don't think it really has much affect on battery life. From what I understand and have read, it has to do with wifi Scanning repeatedly. You can adjust your wifi sleep policy to help this.
Click to expand...
Click to collapse
How do you adjust the sleep policy exactly, rooting ?
ChodTheWacko said:
If it's keeping your phone 'awake' then you should install BetterBatteryStats which monitors Wakelocks. It'll tell you what OS services are going nuts.
It's happened to me a few times with rogue programs and USB host going crazy when I don't unmount correctly.
- Frank
Click to expand...
Click to collapse
So how did you fix the rouge programs and the USB host ?
lipsin said:
Same thing happening to me? Do you experience heavier drain on wifi than 3g?
Sent from my GT-N7000 using Tapatalk
Click to expand...
Click to collapse
Yup...weird that wifi uses more battery than 3g..should be other way round..
abirsharda said:
thanx but for now i don't wanna flash a custom rom.
OK than follow THIS guide to install official 2.3.6 . I did and than I rooted with superoneclick with zergrush exploit
http://jjpda.blogspot.com/2011/11/n7000-how-to-flash-n7000zskk1-236.html
Click to expand...
Click to collapse
Any misbehaving program either got their settings adjusted (stuff like sync frequency) or uninstalled. The USB host issue was, I think, because I unplugged the USB host cable without unmounting first. I just rebooted my phone in that case.
Well after countless number of hard resets....Android OS use in now around 11 %...
the difference i think was because of some apps....i'm not really sure...but this time i didn't install skype, winamp and viber...cuz every time i installed em...Android OS would be like upto 90%...
I currently have 2.6.35.7 with the KK1
would it be safe to update to the 2.6.35.14?
high OS battery is my only real problem.
Suzook1 said:
I currently have 2.6.35.7 with the KK1
would it be safe to update to the 2.6.35.14?
high OS battery is my only real problem.
Click to expand...
Click to collapse
I have the same kernel but with kk3....dunno if 2.6.35.14 will help with Android OS battery usage...my note still has no update available....
The only thing i can suggest for now its most definitely an app you installed which is causing high android OS usage...read my previous post....i hard reset my note installed all apps i had before but not winamp, skype and viber....i've kinda narrowed it down to these 3 after many hard-resets...
When i had them installed....my phone lost about 2% battery per hour on standby....But now it loses 1-2% in 8 hours on standby...
I'm having the same this with the high OS battery drain and have skype installed. Going to remove it and see if I get the same result. I didn't have the other two.
I've got the 2.3.6 KKA firmware installed but the drain just suddenly started one time (not when I installed it). I figured it can't have been the firmware itself, but much more likely an application I had installed or had updated.
Doesn't ICS have a better breakdown of service usage etc? Should be perfect if they have done this. Just have to wait and wait and wait for the ICS version.
Surely there is an app out there that can tell you what in the "Android OS" is causing the problem?
As an indication of how bad mine is at the moment, I was 100% at 9am this morning, 11:30am now and its down to 84%.. That's really awful!
I want to reset the battery stats as it could simply be that, but don't have CWM installed on this firmware. I'm rooted though.
[update] I've removed the battery stats file and restarted to see if that will help too.
Adam_S said:
I'm having the same this with the high OS battery drain and have skype installed. Going to remove it and see if I get the same result. I didn't have the other two.
I've got the 2.3.6 KKA firmware installed but the drain just suddenly started one time (not when I installed it). I figured it can't have been the firmware itself, but much more likely an application I had installed or had updated.
Doesn't ICS have a better breakdown of service usage etc? Should be perfect if they have done this. Just have to wait and wait and wait for the ICS version.
Surely there is an app out there that can tell you what in the "Android OS" is causing the problem?
As an indication of how bad mine is at the moment, I was 100% at 9am this morning, 11:30am now and its down to 84%.. That's really awful!
I want to reset the battery stats as it could simply be that, but don't have CWM installed on this firmware. I'm rooted though.
[update] I've removed the battery stats file and restarted to see if that will help too.
Click to expand...
Click to collapse
Yea...let us know if removing skype helps....
oh and i installed Asphalt 6 from the samsung apps store.....its not available in the market....i had also installed it before hard resetting my note.......and guess what....high Android OS usage again.....damn....removed it....and i think its back to normal....but still have to see if removing fixes it for sure......
I guess the battery manager will count power used by all hidden processes and services as Android OS...
I had exactly the same experience with Asphalt 6 too. Good game, but why it sucked so much power when not even in use, hell knows!
Skype not made a big difference that I could tell, but resetting the battery stats made an immediate difference. 2 hours since charged and only down to 98%. Usually it would be 90-92% by now.
How do you reset battery stats
Sent from my GT-N7000 using xda premium
Same Boat
Hii,
Following are my stats
Android OS at 35% (Awake Time 1 hr 36 mins)
Display at 25% (on for 3 hrs @ 12% brightness)
Voice Calls at 13% (34 mins)
I don't know if the Android OS is a bit of a drain. Feels so. I think the Wifi Sharing and Wifi always remain on. So does Social Hub - use it to sync FB pictures to contacts as Social Hub offers great quality pictures unlike FB app or Friendcaster.
I do have Skype installed, but its never been initialised, never logged into.
I use GO Launcher, with 9 home screens. TouchWiz has been rendered empty (no widgets, short-cuts whatsoever running there)
I do use APW widget pack - Twitter & FB updates at 3 hours. GReader (with Google Reader syncing every hour). 2 Contacts widgets.
In addition to it, I also have the PowerAmp 4x2 music widget. Homescreen has Simple Calender widget, A "Make youw own clock" widget, a 1x1 Beautiful Widget Weather.
Dunno if the widgets are causing the drain or not.
Like you remarked, my battery drain ATM is around 1-1.5% per hour, with Wifi On and everything running and syncing (as above)
The standby time has been pretty decent. Whereas I am happy with charging everyday, if I could reduce the AndroidOS overload, I cud brighten up my screen a bit more
Dunno wat to do now. I don't wanna root now or try any techy stunts. The phone is only 2 days old yet.
Wud appreciate if anyone can guide me around. I will try to FORCE STOP the Wifi Sharing and Wifi Sharing manager, along with Social Hub, and EMail apps/services tomorrow.
Wud be amazing to lose 2% over 8 hours on standby. Awesome.
Screenshot of battery app is at twitpic.com / 7m4b7y
Running Android 2.3.5
Kernel [email protected]#2
Build GINGERBREAD.XXKK3
I am running a Note 3 bought in Sweden around the 11th of December, fully stock. Never rooted or anything. I was actually too stupid to update myself to MJ7 right when i bought it before finding out about the KNOX-debacle, but nevermind about that. What is done is done!
Batterylife has so far been alright since I bought the phone. I've managed to get around 7 hours of screen-on time in the exact same environment as these pictures have been taken in without enabling any power saving modes or going to extremes with turning off location services etc. I was very happy.
Yet lately I've been seeing that my battery life has started to get worse. I've noticed it mostly when the phone has been idle. This led me to experiment today. I've experienced the Android OS bug earlier, which caused me to factory reset the phone and start again. It disappeared for a while, but it has come back now.
The reason I am making this thread is that I cannot for the life of me figure out what inside Android OS is wakelocking my phone. I have a lot of pictures detailing my battery stats screen, with screen on times, signal strengths, location settings, google now settings, better battery stats kernel/partial wakelocks/other tabs etc. Even "Wakelock Detector" with all of its tabs are screencapped.
The wakelock times within better battery stats just do not add up to the "Android OS" wakelock time. Is there something I am not seeing, or is it maybe because I am not rooted that I cannot see more detailed info about what is wakelocking my phone? The only thing i've done today which I know wakelocks my phone, is listen to music for about 2 hours. Surely music does not count into Android OS? It is listed as another process in the battery stats..
Anyhow, if anyone has time to take a look at my screencaps to try and pinpoint what it is exactly that adds up to the "Android OS" time, I would be very greatful. This is very frustrating, as I was very sure to disable almost everything that has to do with location services etc. to see how the battery would fare during the day.
Please help me!
Thanks.
i have exactly same problem like yours. my main wakelock is resume_wakelock and sec battery monitor. i dont know what cause those 2 wakelock. i had disabled all location services and turn off gps and auto sync. do u managed to overcome this problem ?
EddieN said:
I am running a Note 3 bought in Sweden around the 11th of December, fully stock. Never rooted or anything. I was actually too stupid to update myself to MJ7 right when i bought it before finding out about the KNOX-debacle, but nevermind about that. What is done is done!
Batterylife has so far been alright since I bought the phone. I've managed to get around 7 hours of screen-on time in the exact same environment as these pictures have been taken in without enabling any power saving modes or going to extremes with turning off location services etc. I was very happy.
Yet lately I've been seeing that my battery life has started to get worse. I've noticed it mostly when the phone has been idle. This led me to experiment today. I've experienced the Android OS bug earlier, which caused me to factory reset the phone and start again. It disappeared for a while, but it has come back now.
The reason I am making this thread is that I cannot for the life of me figure out what inside Android OS is wakelocking my phone. I have a lot of pictures detailing my battery stats screen, with screen on times, signal strengths, location settings, google now settings, better battery stats kernel/partial wakelocks/other tabs etc. Even "Wakelock Detector" with all of its tabs are screencapped.
The wakelock times within better battery stats just do not add up to the "Android OS" wakelock time. Is there something I am not seeing, or is it maybe because I am not rooted that I cannot see more detailed info about what is wakelocking my phone? The only thing i've done today which I know wakelocks my phone, is listen to music for about 2 hours. Surely music does not count into Android OS? It is listed as another process in the battery stats..
Anyhow, if anyone has time to take a look at my screencaps to try and pinpoint what it is exactly that adds up to the "Android OS" time, I would be very greatful. This is very frustrating, as I was very sure to disable almost everything that has to do with location services etc. to see how the battery would fare during the day.
Please help me!
Thanks.
Click to expand...
Click to collapse
try and turn of (auto network switch) it might have something to do with wifi
i may be wrong ,but no harm in trying
Here the same problem, it drains my battery in half a day
installed wakelock detector, and found out, that my note 3
never goes into deep sleep, it stays awake the whole time
For me it has nothing to do with screen -on time, Wifi or any apps
the problem is is in the android kernel system, and I do not know, how to solve this problem
last statistics : CPU time 3 u 11m 24s , Awake 10 u 28m 48 s
Tried lots of "solutions" found here on this forum, but so far no good
correct me if i am wrong, but as I understood, HTC and LG are having the same kernel / rom,
but without the google "apps", and are not having these problems
Asking Samsung is no use, a concreet wall will answer you sooner, than Samsung in the Netherlands
I wished I had a solution for this android kernel problem
I will wait for the Kitkat update, and if it will solve this problem, if not I will get myself another device
wiebew said:
Here the same problem, it drains my battery in half a day
installed wakelock detector, and found out, that my note 3
never goes into deep sleep, it stays awake the whole time
For me it has nothing to do with screen -on time, Wifi or any apps
the problem is is in the android kernel system, and I do not know, how to solve this problem
last statistics : CPU time 3 u 11m 24s , Awake 10 u 28m 48 s
Tried lots of "solutions" found here on this forum, but so far no good
correct me if i am wrong, but as I understood, HTC and LG are having the same kernel / rom,
but without the google "apps", and are not having these problems
Asking Samsung is no use, a concreet wall will answer you sooner, than Samsung in the Netherlands
I wished I had a solution for this android kernel problem
I will wait for the Kitkat update, and if it will solve this problem, if not I will get myself another device
Click to expand...
Click to collapse
have u try factory reset via recovery mode ? i had read somewhere that factory reset can solve that problem but i didnt try yet
peped94 said:
have u try factory reset via recovery mode ? i had read somewhere that factory reset can solve that problem but i didnt try yet
Click to expand...
Click to collapse
Hell Pepe, Tried this already several times, wiped cache and installed stock firmware twice (MJ7)
so far ,nothing, I am very glad to get good information from this forum, and hopefully I will get/ find the solution soon
maybe the problem will be solved by rooting my device and install a custom rom, but i am a bit afraid to trip knox
wiebew said:
Hell Pepe, Tried this already several times, wiped cache and installed stock firmware twice (MJ7)
so far ,nothing, I am very glad to get good information from this forum, and hopefully I will get/ find the solution soon
maybe the problem will be solved by rooting my device and install a custom rom, but i am a bit afraid to trip knox
Click to expand...
Click to collapse
how do u flash stock firmware without tripping the knox ? i want to try. and how do u do factory reset ? in recovery mode or in setting ? because i also had try reset in setting but problem still exist. later ill try factory reset in recovery mode
peped94 said:
how do u flash stock firmware without tripping the knox ? i want to try. and how do u do factory reset ? in recovery mode or in setting ? because i also had try reset in setting but problem still exist. later ill try factory reset in recovery mode
Click to expand...
Click to collapse
you tube has a lot of videos how to perform a factory reset or how to install stock firmware
T-mobile has a nice manual also http://support.t-mobile.com/docs/DOC-9049
when re-installing the (original samsung ) stock firmware , knox will not be tripped.
I even switched from T-mobile MJ6 to provider free firmware MJ7, without any problems,
hopefully MJ7 will get Kitkat sooner, than MJ6
peped94 said:
how do u flash stock firmware without tripping the knox ? i want to try. and how do u do factory reset ? in recovery mode or in setting ? because i also had try reset in setting but problem still exist. later ill try factory reset in recovery mode
Click to expand...
Click to collapse
download stock from here www.sammobile.com flash with odin
it wont trip knox
jaythenut said:
download stock from here www.sammobile.com flash with odin
it wont trip knox
Click to expand...
Click to collapse
now im on mj7, if i want to downgrade to mj1 , it will trip my knox or not ?
peped94 said:
now im on mj7, if i want to downgrade to mj1 , it will trip my knox or not ?
Click to expand...
Click to collapse
You can't downgrade Sammy won't allow it anymore
jaythenut said:
You can't downgrade Sammy won't allow it anymore
Click to expand...
Click to collapse
damn u samsung. haha. but if i want to flash mk1 or mk2 when im on mj7, is it trip my knox ? i mean if i want to flash newer firmware than my current firmware
Upgrading won't trip KNOX no.
Sent from my SM-N9005 using XDA Premium 4 mobile app
radicalisto said:
Upgrading won't trip KNOX no.
Sent from my SM-N9005 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
are u sure ? because i have read that whenever we upgrade or downgrade our firmware, knox will be changed to 0x1. but im not sure if we just reflash the same stock firmware
peped94 said:
damn u samsung. haha. but if i want to flash mk1 or mk2 when im on mj7, is it trip my knox ? i mean if i want to flash newer firmware than my current firmware
Click to expand...
Click to collapse
no flashing stock will not trip knox
EddieN said:
I am running a Note 3 bought in Sweden around the 11th of December, fully stock. Never rooted or anything. I was actually too stupid to update myself to MJ7 right when i bought it before finding out about the KNOX-debacle, but nevermind about that. What is done is done!
Batterylife has so far been alright since I bought the phone. I've managed to get around 7 hours of screen-on time in the exact same environment as these pictures have been taken in without enabling any power saving modes or going to extremes with turning off location services etc. I was very happy.
Yet lately I've been seeing that my battery life has started to get worse. I've noticed it mostly when the phone has been idle. This led me to experiment today. I've experienced the Android OS bug earlier, which caused me to factory reset the phone and start again. It disappeared for a while, but it has come back now.
The reason I am making this thread is that I cannot for the life of me figure out what inside Android OS is wakelocking my phone. I have a lot of pictures detailing my battery stats screen, with screen on times, signal strengths, location settings, google now settings, better battery stats kernel/partial wakelocks/other tabs etc. Even "Wakelock Detector" with all of its tabs are screencapped.
The wakelock times within better battery stats just do not add up to the "Android OS" wakelock time. Is there something I am not seeing, or is it maybe because I am not rooted that I cannot see more detailed info about what is wakelocking my phone? The only thing i've done today which I know wakelocks my phone, is listen to music for about 2 hours. Surely music does not count into Android OS? It is listed as another process in the battery stats..
Anyhow, if anyone has time to take a look at my screencaps to try and pinpoint what it is exactly that adds up to the "Android OS" time, I would be very greatful. This is very frustrating, as I was very sure to disable almost everything that has to do with location services etc. to see how the battery would fare during the day.
Please help me!
Thanks.
Click to expand...
Click to collapse
Hello EddieN,
Found this on the forum, Under Apps > Settings > Wi-Fi > Menu > Advanced there are two options that should help this: "Keep Wi-Fi on during sleep" and "Always allow scanning" I set the "Keep Wi-Fi on during sleep" to Never and unchecked Always allow scanning and rebooted the phone. This stopped my battery from draining fast, however this is not the solution where was hoping for, maybe Kitkat will solve the problem
kind regards
wiebew said:
Hello EddieN,
Found this on the forum, Under Apps > Settings > Wi-Fi > Menu > Advanced there are two options that should help this: "Keep Wi-Fi on during sleep" and "Always allow scanning" I set the "Keep Wi-Fi on during sleep" to Never and unchecked Always allow scanning and rebooted the phone. This stopped my battery from draining fast, however this is not the solution where was hoping for, maybe Kitkat will solve the problem
kind regards
Click to expand...
Click to collapse
Hello, thank you for the tip and happy new year!
I tried it, but it didn't work. Wifi is on all the time since the phone never sleeps. I just checked my phone again, and it's been on for about 4 hours. It hasn't entered deep sleep not even 1 minute out of that time. This is getting ridiculous. Screenshots from BBS are attached. As you can see, Kernel and Partial Wakelocks just don't add up to the "Awake" time.. Why is this? What is keeping my phone awake?
I'm seriously getting desperate. I'm considering just tripping knox and dealing with it properly with a custom rom/kernel combination that rids the phone of these problems. Is KitKat due this month? Or is it february? I may wait for it but something tells me it wont solve the issues we are having.
Cheers
peped94 said:
i have exactly same problem like yours. my main wakelock is resume_wakelock and sec battery monitor. i dont know what cause those 2 wakelock. i had disabled all location services and turn off gps and auto sync. do u managed to overcome this problem ?
Click to expand...
Click to collapse
me too, have you settle this problem yet?
Did you try: Settings - wifi - advanced - turn off scanning always available & auto network switch and network notification
Sent from my Nexus 7 using XDA Premium 4 mobile app
billythegod said:
me too, have you settle this problem yet?
Click to expand...
Click to collapse
yes. finally my battery life back to normal. just updated to the latest firmware in my country and do a factory reset in recovery mode. now no more drain like hell but still android os consume about 10-15% but sec battery monitor and resume wakelock no more on top in wakelock detector. i also can get about 7hours 300min screen on time with 1day standby time
Before the update everything was fine. Now if I turn on the screen or listen to music the phone would awake (it would show that it was asleep in jellybean). When I turn off the screen and I am not listening to music then my phone falls asleep. Android system used to be awake under 20 mins over a 15-30 hr span now it can be well over an hour in 4-9 hr span. I did a factory reset yesterday already, uninstalled all of my apps and reinstalled them when I seen that the problem still exist. I googled the problem, but can't find a solution. Is anyone else getting a Android System battery drain like me.
dllebandroid said:
Before the update everything was fine. Now if I turn on the screen or listen to music the phone would awake (it would show that it was asleep in jellybean). When I turn off the screen and I am not listening to music then my phone falls asleep. Android system used to be awake under 20 mins over a 15-30 hr span now it can be well over an hour in 4-9 hr span. I did a factory reset yesterday already, uninstalled all of my apps and reinstalled them when I seen that the problem still exist. I googled the problem, but can't find a solution. Is anyone else getting a Android System battery drain like me.
Click to expand...
Click to collapse
Yes, I am having the same problem. I was told to do a factory reset but I cant even back up my phone with kies because it the MTP driver keeps failing to install and Kies says I have to use Kies 3 even though the Samsung Site says 3 is for the Galaxy Note..
Did you sideload your update or was it OTA?
Shark0011 said:
Yes, I am having the same problem. I was told to do a factory reset but I cant even back up my phone with kies because it the MTP driver keeps failing to install and Kies says I have to use Kies 3 even though the Samsung Site says 3 is for the Galaxy Note..
Did you sideload your update or was it OTA?
Click to expand...
Click to collapse
It was a OTA. I did a factory reset already, but that didn't fix the problem unfortunately.
dllebandroid said:
It was a OTA. I did a factory reset already, but that didn't fix the problem unfortunately.
Click to expand...
Click to collapse
yeah I side loaded the update and I am on 100% stock no rooting or anything. My phone gets really hot all of a sudden and the battery starts dropping like crazy. I have none of the apps running so I don't know what the problem is..
Shark0011 said:
yeah I side loaded the update and I am on 100% stock no rooting or anything. My phone gets really hot all of a sudden and the battery starts dropping like crazy. I have none of the apps running so I don't know what the problem is..
Click to expand...
Click to collapse
that is odd. I was reading the forums on the sprint galaxy note 3 update, and people have posted pix of their battery stats. Their stats looks similar to mine. The people there was saying that maybe the problem would fix itself over a week. Im hopping it do, because I am really loving kitkat...minus this issue of course.
dllebandroid said:
that is odd. I was reading the forums on the sprint galaxy note 3 update, and people have posted pix of their battery stats. Their stats looks similar to mine. The people there was saying that maybe the problem would fix itself over a week. Im hopping it do, because I am really loving kitkat...minus this issue of course.
Click to expand...
Click to collapse
I hope so, here is my battery screen shot. It was fine until all of a sudden it starting dropping
Shark0011 said:
I hope so, here is my battery screen shot. It was fine until all of a sudden it starting dropping
Click to expand...
Click to collapse
I attached another screen shot which shows it better
Shark0011 said:
I attached another screen shot which shows it better
Click to expand...
Click to collapse
oh wow. You definitely have an app that is not liking kitkat. Your phone does not fall asleep when you turn your screen off. Im really trying to figure out why your phone is doing that. Im going to assume that "lookout" and "Malwarebytes Anti-Malware" are the problem. My opinion is that you don't need those as much as you think you do. they are most likely the cause of your drainage. My phone falls asleep as soon as i turn off the screen. Now i have 90% battery life with almost an hr of SOT left, and thats on 4g LTE the entire time.
Shark0011 said:
I attached another screen shot which shows it better
Click to expand...
Click to collapse
Heres my stats new stats
I had alot of problems when on wifi, don't use it anymore and sticking with 4g. I'm at 30% left with just over 4 hours screen on. I'm guessing it's something either Google or Samsung have syncing more often on wifi, on wifi I'd be dead at 3 or 4 hours screen on time
Sent from my Sprint Galaxy S4
84guy said:
I had alot of problems when on wifi, don't use it anymore and sticking with 4g. I'm at 30% left with just over 4 hours screen on. I'm guessing it's something either Google or Samsung have syncing more often on wifi, on wifi I'd be dead at 3 or 4 hours screen on time
Sent from my Sprint Galaxy S4
Click to expand...
Click to collapse
Thats interesting. I haven't used my phone on wifi yet, because its a little inconsistent right now. If your phone is acting up while connected to wifi then it got to be something on samsung's end. You can end up with just over 5 and a half hrs of SOT if you stick to 4g and don't want any problems. I would keep testing how things go on both wifi and 4g over the next couple of days if i were you to see if the problems continues though. What problems are you getting while connected to wifi?
dllebandroid said:
Thats interesting. I haven't used my phone on wifi yet, because its a little inconsistent right now. If your phone is acting up while connected to wifi then it got to be something on samsung's end. You can end up with just over 5 and a half hrs of SOT if you stick to 4g and don't want any problems. I would keep testing how things go on both wifi and 4g over the next couple of days if i were you to see if the problems continues though. What problems are you getting while connected to wifi?
Click to expand...
Click to collapse
Another one of the major problems I am having is that sometimes my apps don't work. When i clicked on the camera it did not show up the app opens but the camera does not turn on. This leads to a major lag and when I try to press the home button it does not work. Then my phone's screen just shuts off and I cant turn it back on via the home button or the power button.
This also leads to the phone getting hot and losing the battery very quickly..
oh and btw the S5 does not seem to impressive to me..
Shark0011 said:
Another one of the major problems I am having is that sometimes my apps don't work. When i clicked on the camera it did not show up the app opens but the camera does not turn on. This leads to a major lag and when I try to press the home button it does not work. Then my phone's screen just shuts off and I cant turn it back on via the home button or the power button.
This also leads to the phone getting hot and losing the battery very quickly..
oh and btw the S5 does not seem to impressive to me..
Click to expand...
Click to collapse
thats very odd man my phone doesn't do that at all.
The S5 didn't wow me either...lets see what HTC will do
had the same problem.
dllebandroid said:
Before the update everything was fine. Now if I turn on the screen or listen to music the phone would awake (it would show that it was asleep in jellybean). When I turn off the screen and I am not listening to music then my phone falls asleep. Android system used to be awake under 20 mins over a 15-30 hr span now it can be well over an hour in 4-9 hr span. I did a factory reset yesterday already, uninstalled all of my apps and reinstalled them when I seen that the problem still exist. I googled the problem, but can't find a solution. Is anyone else getting a Android System battery drain like me.
Click to expand...
Click to collapse
I had the same problem at first. Waited a few days and it still drained badly. Then I went into startups and turned off a few of the apps I never use. Working fine now.
mattcoxxx said:
I had the same problem at first. Waited a few days and it still drained badly. Then I went into startups and turned off a few of the apps I never use. Working fine now.
Click to expand...
Click to collapse
What apps did you disabled, and could you include a screen shot of your battery activity if you don't mind.
dllebandroid said:
Thats interesting. I haven't used my phone on wifi yet, because its a little inconsistent right now. If your phone is acting up while connected to wifi then it got to be something on samsung's end. You can end up with just over 5 and a half hrs of SOT if you stick to 4g and don't want any problems. I would keep testing how things go on both wifi and 4g over the next couple of days if i were you to see if the problems continues though. What problems are you getting while connected to wifi?
Click to expand...
Click to collapse
Same problem as the op. Android system would take alot and phone wouldn't sleep. But on 4g it sleeps. Could be an app I have I dunno. 4g is fast here so it's not a problem for me
Sent from my Sprint Galaxy S4
84guy said:
Same problem as the op. Android system would take alot and phone wouldn't sleep. But on 4g it sleeps. Could be an app I have I dunno. 4g is fast here so it's not a problem for me
Sent from my Sprint Galaxy S4
Click to expand...
Click to collapse
i reset the phone and didn't install any apps and come to find out that its something that is already on the phone. I had no apps on my phone and android system and android os were in the top three that was taking up a lot of battery.
I recently had an issue with Android OS draining a lot of battery. I read somewhere that disabling stuff from Google sync that you don't use can help, so I disabled sync for all Google services except the ones I use, such as contacts, calendar, app data, people details, and play books. I rebooted and watched my battery for the next couple of days. And it worked. My battery life is a lot better, and Android OS is not using nearly as much battery as it did before. Perhaps this will help you guys?
***UPDATE on HOW TO FIX***
I HAD terrible batt drain with nae.. so bad that i left the device on the charger overnight qnd woke up to 35% batt... i got mad and reflashed stockish v6.. but.. batt drain was the same...
so.. here is what i did... i ended up flashing negalite r6 and the batt was so bad my phone would be dead within 1hr.. SO, FOR KICKS, i reflashed the MK2 modem and HOLY COW!, problem solved!!
im currently on negalite r6 ( a nae rom ) but using the mk2 modem and my batt drain problems are gone. in fact im getting great batt life. i didnt change the kernal or anything. i have flashed ktoonsez kernal over it, and it has not effected batt life at all...
in conclusion, if ur batt life sux, try reflashing mk2 modem.. it worked for me.. and yes 4g, mms, calls, and wifi work without any problem...
hope this helps
DJMaj07 said:
I recently had an issue with Android OS draining a lot of battery. I read somewhere that disabling stuff from Google sync that you don't use can help, so I disabled sync for all Google services except the ones I use, such as contacts, calendar, app data, people details, and play books. I rebooted and watched my battery for the next couple of days. And it worked. My battery life is a lot better, and Android OS is not using nearly as much battery as it did before. Perhaps this will help you guys?
Click to expand...
Click to collapse
I don't even have sync on to help with battery life. Then again i never have it on unless i need to have something pushed to me.
Hello all,
I own an international N9005.
Up until recently, I used the stock Samsung ROM with good battery life.
A couple of weeks ago, with no apparent reason, I started getting horrid battery life - in access of 10% drop -per hour- in idle (as opposed to 1-3%).
I removed more-or-less everything, disabled more-or-less everything but nothing seems to work.
Got root (there goes the warranty) tried looking for Wake-locks and nothing. The Note3 is 97% (!!!) awake even with everything disabled, and in the wake looks screen both user and kernel I only see 1-2 minutes (!).
Tried resetting the ROM, tried installing other custom ROMs (X-Note, Omega, etc). Nothing seems to work.
Currently I'm running Omera v20, with *zero* applications installed (including all the Google and Samsung applications beyond Google Playstore) and all external services (location, WIFI, et-al) disabled, my note 3 is still 95-99% awake, and the list of wake lockers is, errr, empty.
FWIW I'm ~100m from the nearest cell tower.
EDIT: According to battery meter, Android OS is keeping the phone up.
Any ideas?
- Gilboa
gilboa said:
Hello all,
I own an international N9005.
Up until recently, I used the stock Samsung ROM with good battery life.
A couple of weeks ago, with no apparent reason, I started getting horrid battery life - in access of 10% drop -per hour- in idle (as opposed to 1-3%).
I removed more-or-less everything, disabled more-or-less everything but nothing seems to work.
Got root (there goes the warranty) tried looking for Wake-locks and nothing. The Note3 is 97% (!!!) awake even with everything disabled, and in the wake looks screen both user and kernel I only see 1-2 minutes (!).
Tried resetting the ROM, tried installing other custom ROMs (X-Note, Omega, etc). Nothing seems to work.
Currently I'm running Omera v20, with *zero* applications installed (including all the Google and Samsung applications beyond Google Playstore) and all external services (location, WIFI, et-al) disabled, my note 3 is still 95-99% awake, and the list of wake lockers is, errr, empty.
FWIW I'm ~100m from the nearest cell tower.
EDIT: According to battery meter, Android OS is keeping the phone up.
Any ideas?
- Gilboa
Click to expand...
Click to collapse
Buy a new battery, maybe this will solve the problem...
gilboa said:
Hello all,
I own an international N9005.
Up until recently, I used the stock Samsung ROM with good battery life.
A couple of weeks ago, with no apparent reason, I started getting horrid battery life - in access of 10% drop -per hour- in idle (as opposed to 1-3%).
I removed more-or-less everything, disabled more-or-less everything but nothing seems to work.
Got root (there goes the warranty) tried looking for Wake-locks and nothing. The Note3 is 97% (!!!) awake even with everything disabled, and in the wake looks screen both user and kernel I only see 1-2 minutes (!).
Tried resetting the ROM, tried installing other custom ROMs (X-Note, Omega, etc). Nothing seems to work.
Currently I'm running Omera v20, with *zero* applications installed (including all the Google and Samsung applications beyond Google Playstore) and all external services (location, WIFI, et-al) disabled, my note 3 is still 95-99% awake, and the list of wake lockers is, errr, empty.
FWIW I'm ~100m from the nearest cell tower.
EDIT: According to battery meter, Android OS is keeping the phone up.
Any ideas?
- Gilboa
Click to expand...
Click to collapse
Indexing your external SD maybe?
You could try the link in my sig and try again for your custom ROM.
First, thanks all for taking the time to answer.
I'm thinking about getting a new battery, but my gut feeling is that its not the source of amazing battery drain - ~20%/h while completely [!] idle (auto-sync/location/etc completely off).
I've attaching /d/wakeup_source in excel format sorted by count and total time - in-case someone has any idea what's completely broken.
As far as I can see, qpnp-vadc-ebd30a00, sec-battery-monitor, mmc0:0001:2 are the main culprits.
nicholaschum,
Before I attempt a complete wipe (as opposed to the normal wipe data / cache), how can I detect if someone is indexing my sdcard? (which may account for the mmc0:0001:2 in the wake lock dump).
- Gilboa
I know this is a long shot but try turning off developer options if you have it turned on(especially force gpu rendering). Somehow I found out that when I turned it on and the screen is idle. I get a battery drain. Not as big as yours. But not really sure because if I use the phone, the battery is actually pretty great(an hour of screen time is about 10% even more with internet apps like facebook youtube chrome etc.).
Clear cache. I know this is too common but it actually works for a lot of people.
Lastly, try airplane mode overnight and see if it doesn't drain. It might be your network that is causing the drain.
gilboa said:
First, thanks all for taking the time to answer.
I'm thinking about getting a new battery, but my gut feeling is that its not the source of amazing battery drain - ~20%/h while completely [!] idle (auto-sync/location/etc completely off).
I've attaching /d/wakeup_source in excel format sorted by count and total time - in-case someone has any idea what's completely broken.
As far as I can see, qpnp-vadc-ebd30a00, sec-battery-monitor, mmc0:0001:2 are the main culprits.
nicholaschum,
Before I attempt a complete wipe (as opposed to the normal wipe data / cache), how can I detect if someone is indexing my sdcard? (which may account for the mmc0:0001:2 in the wake lock dump).
- Gilboa
Click to expand...
Click to collapse
Hi, basically just check your phone using BBS (BetterBatteryStats), and see which individual process is eating up your battery.
Graffiti Exploit said:
I know this is a long shot but try turning off developer options if you have it turned on(especially force gpu rendering). Somehow I found out that when I turned it on and the screen is idle. I get a battery drain. Not as big as yours. But not really sure because if I use the phone, the battery is actually pretty great(an hour of screen time is about 10% even more with internet apps like facebook youtube chrome etc.).
Click to expand...
Click to collapse
I had the developer options off and on. Didn't seem to help.
Clear cache. I know this is too common but it actually works for a lot of people.
Lastly, try airplane mode overnight and see if it doesn't drain. It might be your network that is causing the drain.
Click to expand...
Click to collapse
If the current state doesn't hold (see below), I'll give it a try. Good thinking
nicholaschum said:
Hi, basically just check your phone using BBS (BetterBatteryStats), and see which individual process is eating up your battery.
Click to expand...
Click to collapse
Already installed - together with WakeLockDetector.
Short update, out of pure desperation I completely wiped the phone (including sdcard), tried installing stock ROM and, err, Odin failed. Managed to get CWM running again and installed the latest CM nightly.
...
As weird as it sounds, going from NF4 based ROMs (including stock) to CM nightly dropped to idle battery usage to ~2-6%/h, a huge drop from ~20%/h.
I'll update and mark resolved if this situation holds (crosses fingers).
- Gilboa
gilboa said:
I had the developer options off and on. Didn't seem to help.
If the current state doesn't hold (see below), I'll give it a try. Good thinking
Already installed - together with WakeLockDetector.
Short update, out of pure desperation I completely wiped the phone (including sdcard), tried installing stock ROM and, err, Odin failed. Managed to get CWM running again and installed the latest CM nightly.
...
As weird as it sounds, going from NF4 based ROMs (including stock) to CM nightly dropped to idle battery usage to ~2-6%/h, a huge drop from ~20%/h.
I'll update and mark resolved if this situation holds (crosses fingers).
- Gilboa
Click to expand...
Click to collapse
I heard there were problems with NF4 battery. But I haven't been on TW since ND4. No matter what on Note 3 TW the battery sucks. AOSP is great. But actually S5 port has the best battery.
Solved, at least for now.
nicholaschum said:
I heard there were problems with NF4 battery. But I haven't been on TW since ND4. No matter what on Note 3 TW the battery sucks. AOSP is great. But actually S5 port has the best battery.
Click to expand...
Click to collapse
I use Nova (and not TW)
Either way, latest nightly seems to solve the battery drain problem completely - using the same Nova and system configuration (widgets, active syncs, etc). Currently I'm at ~1.5-0.8%/h when idle with no issues going into deep sleep.
Seems that my specific model really dislikes NF4.
Thanks again for trying to help.
This thread has been quite helpful as I was suffering with a Battery Drain after the NF4 Upgrade.
Planning to go back to ND5, which was the last stable version.
JazonX said:
This thread has been quite helpful as I was suffering with a Battery Drain after the NF4 Upgrade.
Planning to go back to ND5, which was the last stable version.
Click to expand...
Click to collapse
I was thinking about doing the same, but in the CM 11 runs circles around both NF4 (duh!) and my previous ROM (not sure which revision it was) - plus I can actually get 2 days of standby time, even with the old batteries, so I'll stick with CM 11 for now.
- Gilboa
gilboa said:
I was thinking about doing the same, but in the CM 11 runs circles around both NF4 (duh!) and my previous ROM (not sure which revision it was) - plus I can actually get 2 days of standby time, even with the old batteries, so I'll stick with CM 11 for now.
- Gilboa
Click to expand...
Click to collapse
CM11 is not an option for me. No 4k Video Recording, Worse Camera than TW, S-Pen Functions Removed... Nope. Cant survive with CM11.
JazonX said:
CM11 is not an option for me. No 4k Video Recording, Worse Camera than TW, S-Pen Functions Removed... Nope. Cant survive with CM11.
Click to expand...
Click to collapse
I can relate.
Good luck, and post if you find a solution (in-case I decide to switch back to Samsung based).
Hello!
I recently put a new battery into my Nexus 7 2012 3G. Before that I had roughly 17 hours of standby time (I did nothing with it, it just sat in my backpack while I'm at work), now it's exactly the same.
Now I know that in a case like this the battery has to go through a few charging cycles before everything works at 100% capacity but I did that. I put it in on Wednesday last week and I discharged and recharged it four times already without seeing any sort of improvement.
There is an issue with the wakelocks on the Nexus 7 as far as I remember. I did try different Kernels a few months ago but those didn't help and the tablet just sat on my shelf most of the time since then because it was pretty much useless to me because of the low batterylife. Right now it's running with stock ROM and Kernel.
Do you have any suggestions for me? Does the battery need more charging cycles? Are there any new Kernels or ROMs now that completely fix these issues? I really want to use this damn thing again, especially now that I spent 40 bucks on a new battery that I can't return because I threw away the old one! :good:
Thanks in advance!
Mathias
No ideas? You got some change? Come on, help a guy out!
Have you used any apps to try and hunt down any wakelocks? You may have a rogue app or service or something causing problems. Try GSAM battery monitor, it has a great detailed breakdown of this. https://play.google.com/store/apps/details?id=com.gsamlabs.bbm&hl=en .
17 hours of standby definitely sounds low to me. I'm currently running Dirty Unicorn v8.2 (final KK release) with the included kernel and could go for days on standby. I haven't run stock since the initial purchase of the device (almost 2 years ago now), so not sure about what's "normal" on stock, but that sounds low to me either way.
BTW i have a grouper not a tilapia, but that shouldn't make any difference.
Thanks I will try monitoring it with that!
Mine went on for days as well. But then, completely out of the blue and from one day to the next, the standby time went to ****.
I am pretty busy this week, but that just let's me monitor it properly for a few days while it sits on my bag. I will try flashing a different ROM and Kernel this weekend. Thanks!
I have _very_ good experiences with all kinds of SlimRoms. I have the grouper device, but with SlimBean (4.3) I had standby times for up to 10 days with wifi + sync on! My Samsung SIII has SlimBean on it and I have 3 days standby
When discussing battery issues, there's a huge difference between the wifi-only (Grouper) and wifi + 3G (Tilapia)versions of Nexus 7 2012.
I have a Tilapia, and battery life sucks. There's a bug in the OS, ever since day 1. Meaning that switching roms will have minimal effect.
Been there done that.
You should run some kind of battery monitor as PrizmaticSmoke suggested. I use BetterBatteryStats ( http://forum.xda-developers.com/showthread.php?t=1179809 ).
Running the monitor for a day or so, will most likely show that there's a constant wakelock named "baseband xmm power", chewing through your battery in about 24 hours.
Even putting the device in flight mode doesn't kill the wakelock.
I have resorted to manually selecting a 3G network and then removing the sim. I now have stand-by for about 5 days.
Tommmii, even after just 1 hour of monitoring it "baseband xmm power" is already at the top of the wakelocks that suck the battery dry.
I followed your suggestion of selecting a 3G network and removing the SIM card, but that didn't help me. I still lose about 7% during one hour of standby.
@Matttis
not to rub salt into your wound...I'm getting 0.6% / H, when the tablet is in deep sleep.
There is some good news from your monitoring, at least you know there's nothing wrong with the hardware.
The not-so-good part is that there isn't a 100% sure fix for that wakelock, all I have read point towards hit & miss solutions.
I am not willing to experiment with my own tablet, since that might bring back that pesky wakelock which has now been away for 2 months.
Are you actually using the 3G, or would you be a happy camper "downgrading" your Tilapia to a wifi-only Grouper, with the gain of normal batery-life ?
cheers,
Tom.
My boss recently gave me a SIM with a 5GB LTE plan, I might actually be better off if I just use the hotspot of my phone instead
So yeah, I'd be down with that! I do use the 3G feature, but if that means that I will get normal battery life again... You mean flashing the rom of a non-3G N7?
Matttis said:
So yeah, I'd be down with that! I do use the 3G feature, but if that means that I will get normal battery life again... You mean flashing the rom of a non-3G N7?
Click to expand...
Click to collapse
yup, that is the only thing I will experiment with.
Untill then, here is what i remember doing to get rid of the wakelock:
I was in another country with a prepaid burner sim.
I had manually selected the sim's network, in the hopes that this would alleviate the wakelock. It didn't help ofcourse.
I then forgot all about the previous, and travelled back home.
I then removed the foreign sim.
Wakelock gone.
Caveat : the tablet keeps reminding me that the burner sim's network isn't available... duh... I'm in another country AND the sim isn't inserted, yah I kinda figured the network won't be available.
So, what I think _might_ work : insert any sim, manually select that sim's network, disable data in the mobile network settings, eject the sim, power off, power on.
Then keep an eye on the wakelocks...
good luck.
I did exactly that. I manually selected the network, ejected the sim and now the tablet keeps reminding me that the network isn't available.
Still same issue, that didn't help me.
Is it even safely possible to install a rom for a different device? For example, could I just grab the Lollipop factory image for the N7 wifi version and flash that?
Matttis said:
I did exactly that. I manually selected the network, ejected the sim and now the tablet keeps reminding me that the network isn't available.
Still same issue, that didn't help me.
Click to expand...
Click to collapse
Also disable data in Mobile network settings.
Also reboot.
Then watch the wakelock for at least 30 mins, even an hour.
Matttis said:
Is it even safely possible to install a rom for a different device? For example, could I just grab the Lollipop factory image for the N7 wifi version and flash that?
Click to expand...
Click to collapse
Possible, yes... I want to try it out when I have some time, if only to get that damn Lollipop, which is available for Grouper but not yet for Tilapia.
http://forum.xda-developers.com/nex...a-flashing-t2958685/post57309990#post57309990
http://androidforums.com/threads/my-tilapia-is-a-grouper-now.858189/
http://androidforums.com/threads/grouper-vs-tilapia.668162/
I went ahead and updated my tilapia to android 5.0.2 for grouper.
Wasn't easy, but it runs stable.
Unfortunately it didn't help with the baseband_xmm_power wakelock
So I took this a step further and did a "fastboot erase radio", I will repost if this helps with the battery drain.
update : no use. Reverted back to 4.4.4 KitKat, and did procedure as outlined a few posts earlier. Standby consumption is now kinda normal at 0.5% / H
Tommmii said:
I went ahead and updated my tilapia to android 5.0.2 for grouper.
Wasn't easy, but it runs stable.
Unfortunately it didn't help with the baseband_xmm_power wakelock
So I took this a step further and did a "fastboot erase radio", I will repost if this helps with the battery drain.
update : no use. Reverted back to 4.4.4 KitKat, and did procedure as outlined a few posts earlier. Standby consumption is now kinda normal at 0.5% / H
Click to expand...
Click to collapse
I updated to LP 5.0.2 factory,and the wakelock hit me like a brick. What got it gone was Synman's GwT with carcosa kernel.
In fact it is the stock kernel that causes the wakelock,tried with Multirom(which uses patched stock kernel),and wakelock was back,using 7%/hour.
Flashing carcosa-a33-lp-anykernel removed the wakelock.
http://forum.xda-developers.com/showthread.php?t=2662639
happy flashing