Database Develop

Battery issue on Fresh 2.1d.. HELP PLEASE!!

So I flashed the new Fresh ROM and it is taking FOREVER to charge. I finally got it up to 100% and less than 7 hours, it was completely dead.
Any ideas?

Me too! Killed my battery in 7 hours while charging overnight!

Have you looked at what's using the battery?
I know in some of the other 2.1 roms, facebook is constantly syncing which kills the battery.
You can use logcat in sdk to see what the phone is doing while it's idle.
Also, service can also change the drain on your battery. I know at work (inside a 3 story brick building) I get horrible service and my phone is dead by noon if it's not plugged in. At home, it can go all day and then some.

Same issues here. Takes forever to charge and dies quickly. I haven't flashed the new radio yet....could this be this issue?

I've been using it since he released it and battery life is more than excellent. I can go a whole day then some

Go under settings, about phone, battery. What is your uptime and awake time?
Then tap on battery use. What has the highest percentage of use time on your battery?
Also check out 'cell standby'. Tap it.. Time Without Signal should be very low, or missing.

up time 8:57
awake time : 2:42
highest use is close between cell stanby48% and phone idle 47%
time without signal : 0%
BTW my battery was at 38% with little use(a few text msgs and fb mobile a couple of times)

TWS is fine then. Do you have the sync icon constantly running?
And what is your PRL/PRI (sorry if you posted that already).

PRI - flipz_01
PRL - 60663

What about the sync icon?

sorry....no sync icon

Weird. Any mods/themes/etc?
What I would do at this point is wipe everything (including ext), and reflash, then see if you still have the problems. I haven't had those issues, so I can't give you anything else to look at.
Perhaps someone else can, but that's all I can think of.
You could try the new radio. Some have said they get much better battery life with it (which is likely caused by the radio not having to search for signal as often...but since your TWS is 0% I'd be surprised if that's it). Try that, then nuke and pave would be my suggestion.

Last night was the first night that I had my alarm set. Could this have anything to do with the drain?

I had a weird issue with the battery. I don't know what exactly caused it and I could not pinpoint it with "Battery Use" nor "Spare Parts." My phone was staying constantly awake though, no matter what.
I eventually just partitioned the SD card, with no ext partitions (no apps2sd), flashed fresh again, and now it's all working great. I am installing my apps very slowly and monitoring them to see which one may have been causing the problem. So far no problems though.

Counterfeit7485 said:
sorry....no sync icon
Click to expand...
Click to collapse
I was getting decent battery life when I flashed 2.0d originally so this might not help you but after I flashed the newest radio my battery life got way better. I can listen to slacker radio for 4 hours while studying and use the phone intermittently throughout the day and get about 12 hours out of the battery life.

anybody who has crappy battery life check if your phone is on GSM auto PRL?
http://forum.xda-developers.com/showthread.php?t=651848&highlight=battery

I'm running Fresh Rom and my battery is great. I haven't charged my phone since 6:30am this morning(it's 8:30pm here now) and it's at 60%. I'm using the new radio too.

scratch what I said yesterday, lol... my phone randomly rebooted overnight and now I can't get it to stop being 100% awake...
EDIT: Tried rebooting, tried "power cycling" phone, did the CDMA (Auto PRL) fix just in case, didn't install any new apps, battery use shows TWS at 0%, Cell Standby Time on = My total uptime.
Spare Parts Battery History shows my phone as 100% running, no sleep time.
Spare parts partial wake usage just shows Android System..
Battery is draining like crazy..

rlaxton said:
anybody who has crappy battery life check if your phone is on GSM auto PRL?
http://forum.xda-developers.com/showthread.php?t=651848&highlight=battery
Click to expand...
Click to collapse
That shouldnt be an issue any more. Flipz fixed it in 2.0d.

Change your screen brightness to auto. When I first flashed it was at the highest setting and killing my battery. A lot better now...

Battery drain

My batteri is all out after 5 hours.
I have baseband
1035.21_20110614
Kernel
2.6.32.9-dirty
Version
FRG83G
LGE
P990-V10c
Is there something that is not up to date? Display brightness is set to the lowest and GPS disabled. What should i do?

You could try updating your Baseband to 622 and download the 622 Ril. Maybe your drain get lower with this combination

connubialis said:
My batteri is all out after 5 hours.
[...]
Is there something that is not up to date? Display brightness is set to the lowest and GPS disabled. What should i do?
Click to expand...
Click to collapse
I'm down to 46% after 21 hours.
You can try flashing the correct baseband for "Europe Open" - and using the corresponding RIL. This was a tremendous improvement on my phone. The phone seems to have better reception as well.
I was seeing very poor performance when running with the wrong version of the baseband (even though it had the same version number).
BTW: Have you tried disabling bluetooth? This seems to consume a lot of power even though it's not connected on my phone.

Hello,
I had appalling battery drain on 10c too. However, I downgraded my unit to 10b + 622 baseband and now my phone is holding for 4 days and 25% of battery is still remaining (some light psx/android gaming, wifi internet, calls, texting). No root or modification or killing processes whatsoever. Downgrade worked for me

MrLama said:
Hello,
I had appalling battery drain on 10c too. However, I downgraded my unit to 10b + 622 baseband and now my phone is holding for 4 days and 25% of battery is still remaining (some light psx/android gaming, wifi internet, calls, texting). No root or modification or killing processes whatsoever. Downgrade worked for me
Click to expand...
Click to collapse
Mine is holding for a month if is closed

adobloug said:
I'm down to 46% after 21 hours.
You can try flashing the correct baseband for "Europe Open" - and using the corresponding RIL. This was a tremendous improvement on my phone. The phone seems to have better reception as well.
Click to expand...
Click to collapse
I'm having the same problems as the OP and this post is the best hope I have gotten for months now for fixing my battery drain.
I don't understand all the versioning numbers, RIL and whatnot for basebands so if someone could point my to the correct baseband links I would _very_ grateful.
I'm currently running cm7 and my baseband is currently 1035.21_20110405 and I live in Sweden and 3 is my carrier (if it matters).
Thanks!
Edit: Updated to baseband 622, still no go.

monoceres said:
I'm currently running cm7 and my baseband is currently 1035.21_20110405 and I live in Sweden and 3 is my carrier (if it matters).
Thanks!
Edit: Updated to baseband 622, still no go.
Click to expand...
Click to collapse
Check that you're using the corresponding RIL. You can use this utility: http://forum.xda-developers.com/showthread.php?t=1176372.

had a similar problem with my previous O2X, had it exchanged because the battery kept saying it was overheating. Kept burning off a full charge in less than a day in sleep mode.
As i said, only solution was a new phone

Get juicedefender, mine runs for like two days

Also having battery draining issues. Removed my phone from the charger at 3AM this morning, was 100% charged. At 2PM, it was down to about 15% if I remember correctly. During that time, probably 1-2 hours was spent using the phone, including a phone call. Mostly angry birds and some chatting, using wifi, and bluetooth in my car.
My battery use stats show Cell standby used 31%, and Phone Idle used 26%. These figures sound high to me, but I'm not sure. Can anyone comment on if they are high/low?
I'm on baseband 0622 with RIL 0622 as per vorkkernel, with CM7 #84. I read some people claim that nightlies since #79 have been bad for battery life. Otherwise my baseband works fine, data works fine and my phone call worked fine. No idea how I sounded though.

Battery life in the last few days

Anyone notice a change in their battery life in the past few days? My girlfriend and I both are going through our batteries in just over half a day with no use. It's like the phone isn't sleeping. Looking at battery use Display is using all of the battery. I'm running CM7.0.3 and she's on stock. Looking at mine right now the phone has been on battery for 1 hour 34 minutes, and Display is taking 57% of the battery and I'm down to 84% battery.

Yes! I've had my N1 since January 2010. I stayed stock until recently when I installed CM 7.1 RC1 shortly after it was released. Battery life had always been great, both stock and under CM7, especially with SS4N1. Then, a few days ago it just fell off a cliff. I now get only about 7-8 hours, even with little to no usage. Before I'd barely lose anything if the phone wasn't being used (a percent every couple hours).
Now the Nexus One Battery Calibrator application shows a drain of ~200 mA or more constantly.
I've been tearing my hair out for the last few days, uninstalling apps right and left, trying in vain to figure out what's causing this. I even considered a full wipe and reinstall of CM 7, thinking that some system setting somewhere had gotten horked.
I've always had WiFi set to never sleep, since I'm usually either at work or home. I've also had preferred network type (*#*#4636#*#* -> Phone Info) set to "GSM auto (PRL)" for months.
I've not made any other changes I can think of that would've had such a drastic impact on power consumption. I didn't track all the app updates that happened around the time it started, so I suppose it could be one of those. But I've uninstalled just about everything and it's still happening.

I have the same issue! Just in the past week or so. I have about 50% battery then a hour or so later it's dead! I was going to get a new battery today but maybe it's a CM7 issue. I use the nightly as soon as they hit the mirror.

An update on this... There may be a big issue going on with T-Mobile or some recent update:
http://www.tmonews.com/2011/07/t-mobile-g2-users-suddenly-suffering-from-huge-battery-loss/
Looks like other users on different phones have the same issue!

Thanks for that article, Lost Dog. Makes me feel a bit better. At least I know I'm not just going nuts.
My phone still has increased battery drain even if I put it in airplane mode though. It helps, but it's still much faster than before. This makes me really puzzled as to what the cause could be. How could the cell network still be causing increased drain if the phone's completely disconnected from it? Some sort of configuration information it received that persists even after the cell radio is turned off? EDIT: I may be wrong on this one, see below.
Last night I tried a complete wipe (using Temasek's full format "Format-signed.zip" first), and re-installed CM7.1 RC1 completely fresh. I installed only the minimal Google applications and a couple crucial tools (my password safe app). However, I'm still getting the same quick battery drain today.
I hope we (or T-Moblie) can figure out how to fix this. It really cripples my phone as a useful tool to have such short life!
EDIT: I'm going to try a workaround I've seen mentioned in comments on the TMoNews and Phandroid articles about this: limiting the cellular connection to 2G/EDGE only. It seems to have made a significant difference so far. I may have been incorrect then about airplane mode not having an impact. I'd only been checking current drain with the N1 Battery Calibrator app, and never left it in airplane mode for long. Anyway, I'll post back later this afternoon with results.

Ok, so switching to 2G-only for the cellular connection seems to have made a HUGE difference. The drain rate seems to be back at around what I'd expect. Everything else I left exactly the same (WiFi on, GPS enabled, same applications, etc.)
So, I'm starting to suspect something may be up with T-Mobile's 3G/3G+ service in some areas that's preventing phones from idling properly.
Anyone else want to give it a try?

Interesting, I'll switch over to 2G only and see how that affects my phone.
I've gone as far as wiping everything and that didn't help so if it really is a t-mobile issue then that would shed some light on the situation.

I see the same trend when switching to 2G only. Very steep power usage with 3G then a dramatic decrease in the discharge slope in 2G.
T-Mobile has an issue. The trick will be getting someone there to listen.
Sent from my Nexus One using XDA App

Here is my screenshot. You can clearly see when I turned on 3G. Dramatic difference. Looking on the T-Mobile forum there are many people seeing the same issue but there's mostly finger pointing and speculation as to the cause.

nir0th said:
Anyone notice a change in their battery life in the past few days? My girlfriend and I both are going through our batteries in just over half a day with no use. It's like the phone isn't sleeping. Looking at battery use Display is using all of the battery. I'm running CM7.0.3 and she's on stock. Looking at mine right now the phone has been on battery for 1 hour 34 minutes, and Display is taking 57% of the battery and I'm down to 84% battery.
Click to expand...
Click to collapse
I also got the same rapid battery drain since last Wednesday. At that time, I thought there may be a hardware/battery issue for my nexus one. To test this, I switched my rom from CM7 back to GB stock. After a few updates for the GB stock and used it for a day, same battery drain happened. So, I changed to use another backup battery yesterday. It did not help also. I thought it may be a real hardware issue.
Then, I found this thread and research a bit in the web. I found out it could be either caused by tmobile or google map updates. I first uninstall google map and reinstall the new version right from the market again. I also switch off 3G as well. No rapid battery drain for the entire day. The battery runs normally. When I came back home today, I turned on 3G, let it for a couple of hours, checked a couple of emails and received a 20min phone call. Everything seems to work fine. No noticeable rapid battery drain was observed. My conclusion so far is: this is caused by google map 5.8 update.
Try to uninstall it and reinstall the google map from the market to see if it helps.
Good luck.

ricky9237 said:
I also got the same rapid battery drain since last Wednesday. At that time, I thought there may be a hardware/battery issue for my nexus one. To test this, I switched my rom from CM7 back to GB stock. After a few updates for the GB stock and used it for a day, same battery drain happened. So, I changed to use another backup battery yesterday. It did not help also. I thought it may be a real hardware issue.
Then, I found this thread and research a bit in the web. I found out it could be either caused by tmobile or google map updates. I first uninstall google map and reinstall the new version right from the market again. I also switch off 3G as well. No rapid battery drain for the entire day. The battery runs normally. When I came back home today, I turned on 3G, let it for a couple of hours, checked a couple of emails and received a 20min phone call. Everything seems to work fine. No noticeable rapid battery drain was observed. My conclusion so far is: this is caused by google map 5.8 update.
Try to uninstall it and reinstall the google map from the market to see if it helps.
Good luck.
Click to expand...
Click to collapse
Well, I'm willing to give it a try, but I'm skeptical. If it were the Maps 5.8 application that was preventing the phone from idling correctly, or transmitting tons of data, wouldn't we expect it to happen regardless of whether the phone was using the 2G or 3G radio connection? Sure, there might be a slight difference in the drain rate, but we'd still expect to see it in both cases. And yet the accelerated drain is alleviated completely by using only 2G. I have the Maps 5.8 application and can fix the problem by using 2G only. That indicates to me it's not an issue with the application.
I'll try uninstalling Maps tomorrow (I'm using CyanogenMod, so it's possible to remove it completely). Then I'll put the phone back on 3G and report back on what happens.

I've been experiencing similar battery issues the past week or so too. It looks like turning on 2G only seems to fix it, but what I don't get is why I'm still getting horrible battery life?
I have tasker auto turn off my 3G all together whenever my screen is turned off, and yet I leave my phone on my desk untouched all day and I end up at 40% when I get off work.
Wouldn't turning off 3G via Tasker be the same (or close to it) as turning on 2G only in the settings?
Hope t-mobile gets this worked out pretty soon!!

Glad I saw this thread. My wife and I both have N1s and have each been noticing unusually fast battery drain just in the last 3-4 days.
Last night I charged both phones to the same percentage, turned off 3G on hers and let them both sleep for a while. The phones are configured pretty similarly (stock, latest Maps installed, similar push settings etc). After about an hour and a half, my phone had lost 11% of its charge and hers had only lost 2%. That's enough of a delta for me to point to the 3G usage as the culprit. I guess I will be leaving my phone on 2G when I'm not using it if I am going to be away from a charger for a while.

It's NOT the Google Maps update.
Well, I did my experiment yesterday to rule out the Google Maps 5.8 update as the cause of this issue.
I'm running CyanogenMod so it's possible for me to uninstall Google Maps completely, not just the updates. I did so on Saturday night. Still set to 2G only, I removed my phone from the charger Sunday morning. A few hours later I enabled 3G. Later that afternoon I turned 3G off again.
I think the screenshot speaks for itself. Again, this is without Google Maps installed at all.
I asked around this weekend, and my friend's wife (also here in Portland, OR) is experiencing the same issue on her G1 on T-Mobile. Reading online I've heard about the problem affecting the MyTouch 3G, the G2, and many here with the Nexus One. The common elements seem to be: T-Mobile 3G service, particular models of phones, and some particular geographic areas.
Bottom line (IMHO): T-Mobile has a problem with the configuration of their 3G service in some areas, and it's preventing many phones from being able to idle/sleep properly, resulting in huge battery drain.

Here's mine, I posted this several days ago in the TMONEWS thread.

keenerb said:
Here's mine, I posted this several days ago in the TMONEWS thread.
Click to expand...
Click to collapse
That's interesting. Even locking the phone to 2G/EDGE didn't have an impact? (not a Nexus One there it appears, what model?)
How did you go about disabling the 3G connection? I'm not sure if there are multiple ways to do it, but I used:
Settings -> Wireless Networks -> Mobile Networks -> Use only 2G networks
Really strange that even pulling the SIM didn't seem to make a difference. Or maybe that's not the same as turning off the cell radio entirely? Perhaps the issue is lower-level, like the radio constantly polling the tower or something even in the absence of being able to successfully register on the network for active use.
Does enabling airplane mode fix the drain issue for you?

Deliamber said:
That's interesting. Even locking the phone to 2G/EDGE didn't have an impact? (not a Nexus One there it appears, what model?)
How did you go about disabling the 3G connection? I'm not sure if there are multiple ways to do it, but I used:
Settings -> Wireless Networks -> Mobile Networks -> Use only 2G networks
Really strange that even pulling the SIM didn't seem to make a difference. Or maybe that's not the same as turning off the cell radio entirely? Perhaps the issue is lower-level, like the radio constantly polling the tower or something even in the absence of being able to successfully register on the network for active use.
Does enabling airplane mode fix the drain issue for you?
Click to expand...
Click to collapse
This is a G2.
2G has been much better than 3g, but still probably only 3/4 of my former battery life, optimistically. I checked "Use 2g networks only", same as everyone else. The graph above is a little misleading, since I really saw better battery life, that initial flat and quick drop actually averages out to "decent", rather than "horrific.
At the "Pulled SIM and SD card" mark I re-enabled 3g, so the drain afterwards is still 3g related.
Pulling the SIM doesn't disconnect it from the radio tower, you can still make emergency calls/etc. so it has to maintain a connection I suppose.
Twice I hard-reset the phone, pulled out SD and SIM, and still had huge huge battery drain. Powertutor said IDLE draw was 1437mw on average, no SIM, no WIFI, just sitting there on my desk.
In Airplane mode it'll last for days...

Wannagotopopeyes said:
I've been experiencing similar battery issues the past week or so too. It looks like turning on 2G only seems to fix it, but what I don't get is why I'm still getting horrible battery life?
I have tasker auto turn off my 3G all together whenever my screen is turned off, and yet I leave my phone on my desk untouched all day and I end up at 40% when I get off work.
Wouldn't turning off 3G via Tasker be the same (or close to it) as turning on 2G only in the settings?
Hope t-mobile gets this worked out pretty soon!!
Click to expand...
Click to collapse
I'm not familiar with Tasker. However, maybe it's just disabling cellular data use, not actually disabling the 3G radio? From what we've seen it appears the problem is very low-level, perhaps something to do with basic communication/negotiation between the cell radio in the phone and the towers, as there's no indication of particular application activity or significant data transmission that the Android OS is aware of.
In the T-Mobile support thread there are reports that T-Mobile is now acknowledging there's an issue with changes to their HSPA+ network in some areas.

I've had 3G off all day and my battery life is back to normal. I'm at 87% after at least 6 hours on battery. Yesterday I was down to less than 50% by this time. Luckily, I am able to be on Wifi at work so I don't have to deal with EDGE speeds, which make the Baby Jesus cry.
deliamber, you probably noticed this already but I'm also in the Portland market. It's gotta be a network issue.

I'm having the same issue on my N1 (I'm around the Portland area myself)
I did everything as well, 2g is the only thing that saves me..
Can't wait for a fix!

Big battery drain and Partial Wakelocks from Keypad and its SMSDispatecher service.

Hello. I updated my T to a JellyBean a week ago. My bootloader is unlocked and I have stock kernel with TWRP.
My problem is whenever I boot my phone soon or later I get massive amounts of Partial Wakelock time from keypad and SMSDispatcher.
I have root and I installed better battery stats. Yesterday it showed me about 9h of total time, about 7h of deep sleep and... about 4h of partial wakelocks which was mainly caused (about 95% of total partial wakelocks time) by SMSDispatcher. I provided some earlier screenshots from BBS and Settings. It shows only 30 minutes of SMSDispatcher time but it's still quite big amount of time in comparison with ICS where this problem never occured. On the secons BBS screen there is huge Alarm Manager time but it does not matter, below there is still SMSDispatcher messing with my phone.
This is what I already tried:
1. I did a fresh, perfectly clean flash, I did not reatore ANY data from ICS at all. Nothing has changed.
2. I did not remove any system apks and there was no effect.
3. I removed the same apks I removed on ICS (I don't use most of them) and there was no effect.
4. I flashed .195 FW ICS baseband (because I had problems with low signal) and there was no effect.
5. I tried to wait as many users say after such big update we must give our phone somw time to optimize everything. I waited a week and guess what... there was no effect.
6. I wiped Dialer/SMS/Keypad data and there was no effect.
BUT! I did something interesting today. I turned off Airplane Mode for about 4 hours and left my phone in my locker at my job and what? Wakelocks disappeared! There were absolutely NO signs of any app waking up the phone.
I'm very curious what the hell is going on. There are no signs of any similar problems on the net. Please help me of you can. On ICS I had amazing battery life, sometimes the phone lasted even for more than 2 days without charging.
Please post your ideas. I think I tried almost everithing to fix this, without result...
Regards,
Roman
Tapatalked from Poland using Xperia T

romcio47 said:
Hello. I updated my T to a JellyBean a week ago. My bootloader is unlocked and I have stock kernel with TWRP.
My problem is whenever I boot my phone soon or later I get massive amounts of Partial Wakelock time from keypad and SMSDispatcher.
4. I flashed .195 FW ICS baseband (because I had problems with low signal) and there was no effect.
BUT! I did something interesting today. I turned off Airplane Mode for about 4 hours and left my phone in my locker at my job and what? Wakelocks disappeared! There were absolutely NO signs of any app waking up the phone.
Please post your ideas. I think I tried almost everithing to fix this, without result...
Regards,
Roman
Tapatalked from Poland using Xperia T
Click to expand...
Click to collapse
SMSDispatcher is obviously handling the SMS, keeps track of an SMS that has been sent to the Radio Interface Layer (RIL is a layer in android which provides an interface to the hardware's radio and modem), until it it has successfully been sent, it is awaiting a delivery status report for some SMS that has bean sent, it is retrying to send a previously failed SMS message, and more ... so it might have anything to do with any of this.
So when your phone is in Airplane Mode you are not using any radio/modem and that's why you don't have WakeLocks connected to SMSDispatcher.
I don't know what can you do about this, it may have something to do with weak signal and the phone keep trying and failing to send something, or it is constantly awaiting some delivery report but it's failing because of weak signal or something ...
To be honest I'm just saying some random stuff ... maybe you can try and disable delivery report, delete every SMS if you have any ... I don't know

Odp: Big battery drain and Partial Wakelocks from Keypad and its SMSDispatecher servi
I tried to delete every sms - no result.
Tried the second thing you said... to disable delivery reports - no result...
I just don't have any idea how to solve this...
Tapatalked from Poland using Xperia T

Shoot. Nothing like this here despite other problems.

Odp: Big battery drain and Partial Wakelocks from Keypad and its SMSDispatecher servi
doministry said:
Shoot. Nothing like this here despite other problems.
Click to expand...
Click to collapse
Out of targets, out of bullets.
Tapatalked from Poland using Xperia T

Flashing different ROM-s (German, UK, Europe) gives no result. Soon or later I have the same problem. I flashed back to ICS and there is totally no problem with anything.
I guess I'll have to wait for future releases. I hope Sony will fix this.

i got a drain problem too.. When i leave the phone in stand by mode over the night , i wake up in the morning and i see that it drained 4 to 8% of the battery .. i also updated το JB 4.1.2 a few days ago.
I didn't have any battery issues with 4.0.4 i am pretty sure that i had better battery management.

I have android system and Google services using a lot of battery and over 130 wake-ups by each. Network location is there under Google services and my GPS etc are left off yet and same with Google now.

Odp: Big battery drain and Partial Wakelocks from Keypad and its SMSDispatecher servi
profchaos1981 said:
i got a drain problem too.. When i leave the phone in stand by mode over the night , i wake up in the morning and i see that it drained 4 to 8% of the battery .. i also updated το JB 4.1.2 a few days ago.
I didn't have any battery issues with 4.0.4 i am pretty sure that i had better battery management.
Click to expand...
Click to collapse
Check battery info in settings. Which service has the highest %?
Tapatalked from Poland using Xperia T

Odp: Big battery drain and Partial Wakelocks from Keypad and its SMSDispatecher servi
Bump and another update...
After going back to 4.0.4 .195 FW the problem started to occur even on the old ROM and it didn't before switching to JB. But it's not in so big way, but still it occurs and it's really strange. 22h on battery and 58 minutes of smsdispatcher waking the phone. Very annoying.
However I forgot to tell you that I always use GSM only option in settings. And after changing network to WCDMA only there are no wakelocks at all! But it's not comfortable to always use 3G because it drains more battery and there are problems with the signal strength here where I live.
Again the same question - is anyone able to help me?

Problem solved. It was my old SIM card's fault. It was more than 6 years old and I had to manually cut it from mini-SIM to micro-SIM shape. I probably damaged its inside structure or something. I went to my carrier and requested a new SIM card factory cut to a micro-SIM shape and now everything is ok! No strange wakelocks at all!

[Q] Samsung Galaxy Note critical battery life after 4.1.2 update

Hello!
I know that there were a lot said about battery problems in 4.1.2 android, but i still haven't found any solution on my problem. My Note was bought with GB 2.3.6 and had an awesome battery, but after i updated it to JB 4.1.2 (via Kies), suddenly battery life is catastrophic. I have everything off (bluetooth, wi-fi, gps), my screen brightness is on minimum, i use my phone on GSM band (not 4g), i also disabled some of unused apps, etc...everything said was also my practice on previous version 2.3.6 and phone battery lasts up to 4 days, but now, it drains off in 17hrs and I barely use my phone!
If I check battery stats, it shows that screen is the major consumer of battery and it seems like it is on all the time, although the phone screen is physically off most of the time. It means something causing my phone being awake all the time instead of being off.
Any ideas how to fix this??

ajvek8558 said:
Hello!
I know that there were a lot said about battery problems in 4.1.2 android, but i still haven't found any solution on my problem. My Note was bought with GB 2.3.6 and had an awesome battery, but after i updated it to JB 4.1.2 (via Kies), suddenly battery life is catastrophic. I have everything off (bluetooth, wi-fi, gps), my screen brightness is on minimum, i use my phone on GSM band (not 4g), i also disabled some of unused apps, etc...everything said was also my practice on previous version 2.3.6 and phone battery lasts up to 4 days, but now, it drains off in 17hrs and I barely use my phone!
If I check battery stats, it shows that screen is the major consumer of battery and it seems like it is on all the time, although the phone screen is physically off most of the time. It means something causing my phone being awake all the time instead of being off.
Any ideas how to fix this??
Click to expand...
Click to collapse
4 days? really? think that is unheard of. Either how, it should last longer than 17 hours.
Try going back to factory settings, perhaps theres something running thats divided by zero :silly: .
If you feel adventurous you can also choose to root & try a custom rom. Though thats your responsibility and choice entirely.

Anthropostar said:
4 days? really? think that is unheard of. Either how, it should last longer than 17 hours.
Try going back to factory settings, perhaps theres something running thats divided by zero :silly: .
If you feel adventurous you can also choose to root & try a custom rom. Though thats your responsibility and choice entirely.
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Yup 4 days, not kiddin...4 days of average use.
I forgot to mention that i already did the factory reset and i also wipe the cache partition in recovery menu... I disabled practically everything, and i use things when i need, nothing is set on auto, sync or anything. Last night I didn't touch the phone for about 9 hrs and battery consumption was around 1% which is ok, but it's draining everytime i turn on the screen like 5% in 10mins. BBS shows that well known GTALK_ASYNC_CONN as a battery eater. Is it possible to kill this annoying thing on un-rooted phone???