[Q] Battery drains - Galaxy Tab 10.1 Q&A, Help & Troubleshooting

I installed [JB 4.3.1] CM10.2/SGT7 for a week now, I didn't changed anything yet and everything is stock as it is when it was installed. But from day 1 I installed this rom there seems to be a battery leak or something like that, because when I put it away to go for a sleep I wake up the next morning with a empty battery. Is this a bug or do I need to change a setting?
I used this tutorial
http://forum.xda-developers.com/showthread.php?t=2098429
I installed it on a galaxy tab gt-7500 (3G+wifi)

tissuemakert said:
I installed [JB 4.3.1] CM10.2/SGT7 for a week now, I didn't changed anything yet and everything is stock as it is when it was installed. But from day 1 I installed this rom there seems to be a battery leak or something like that, because when I put it away to go for a sleep I wake up the next morning with a empty battery. Is this a bug or do I need to change a setting?
I used this tutorial
http://forum.xda-developers.com/showthread.php?t=2098429
I installed it on a galaxy tab gt-7500 (3G+wifi)
Click to expand...
Click to collapse
You might wanna take a look here...
http://forum.xda-developers.com/showthread.php?t=1179809
This way you can check if the tab is actually going to the deepsleep state. If it doesn't, take a look at the wakelocks.

Related

Battery drain on s3 after installing JB 4.1.1

Hi
Last night i installed the [ROM][AOSP][JB][4.1.1][STABLE] SuperNexus - I9300 - BUILD 1 on my Galaxy S3 device and i noticed my battery is draining out like crazy. Cell Standby and Screen are using more than 40% each.
When i was using Ice Cream Sandwich i had the same problem but after installing the battery fix it all worked so tried the fix on JB and nothing.
Is there any other fix or solution for this?
Thanks.
No fix for this until cm sorts it. Live with it or go back to ics I'm afraid mate
Sent from my GT-I9300 using xda premium
I am having the same battery drain with my sgs3 running ics, what battery fix did you use. I would like to try it out.
Sent from my GT-I9300 using xda premium
here u go:
http://forum.xda-developers.com/showthread.php?t=1732722
let me know if it works, i tried it and no luck on my S3.
syber192 said:
here u go:
http://forum.xda-developers.com/showthread.php?t=1732722
let me know if it works, i tried it and no luck on my S3.
Click to expand...
Click to collapse
That is not repeat not a battery fix if you read the post it fixes a misreported figure only .
battery drain is user start with Better Battery Stats and look for wakelocks .
Battery requires five days use from flashing a new rom .
jje
Screen will always use 40%+ unless you aren't using your phone.
syber192 said:
Hi
Last night i installed the [ROM][AOSP][JB][4.1.1][STABLE] SuperNexus - I9300 - BUILD 1 on my Galaxy S3 device and i noticed my battery is draining out like crazy. Cell Standby and Screen are using more than 40% each.
When i was using Ice Cream Sandwich i had the same problem but after installing the battery fix it all worked so tried the fix on JB and nothing.
Is there any other fix or solution for this?
Thanks.
Click to expand...
Click to collapse
Running the same build myself and experienced an 18% drop last night on standby with Wi-Fi on over 7 hours, i have flashed the latest Siyah kernel update today and ive every confidence this will increase battery life as when i checked the kernel wakelocks this morning the wakelocks were big, the CM kernel i believe is the main culprit in this instance.
Also take into consideration any apps / widgets you have which update and any sTuff you rarely or never use freeze in Titanium backup and also go into advanced in Wi-Fi and set to never or only when plugged in and this will make a difference.
And finally don't use Juice Defender or any other battery saving apps as they use up more battery than they save!
jonny68 said:
Running the same build myself and experienced an 18% drop last night on standby with Wi-Fi on over 7 hours, i have flashed the latest Siyah kernel update today and ive every confidence this will increase battery life as when i checked the kernel wakelocks this morning the wakelocks were big, the CM kernel i believe is the main culprit in this instance.
Also take into consideration any apps / widgets you have which update and any sTuff you rarely or never use freeze in Titanium backup and also go into advanced in Wi-Fi and set to never or only when plugged in and this will make a difference.
And finally don't use Juice Defender or any other battery saving apps as they use up more battery than they save!
Click to expand...
Click to collapse
I installed syiah kernel s3-v1.5beta5 over CWM yesterday and still no change, Cell Standby is now using 70% while screen dropped to 7%. I will
now try to disable all automatic updates.
After installing [ROM][AOSP] [4.1.1] Liquid JellyBean Beta 1.1 battery works pretty good without even installing kernel 1.5beta4.
Cell standby dropped to 37% and Screen to 27%
I must say this ROM works faster and adds a few cool options for personalization.
syber192 said:
Hi
Last night i installed the [ROM][AOSP][JB][4.1.1][STABLE] SuperNexus - I9300 - BUILD 1 on my Galaxy S3 device and i noticed my battery is draining out like crazy. Cell Standby and Screen are using more than 40% each.
When i was using Ice Cream Sandwich i had the same problem but after installing the battery fix it all worked so tried the fix on JB and nothing.
Is there any other fix or solution for this?
Thanks.
Click to expand...
Click to collapse
- I recommend you to go to stock or modified ICS , simply functioning Roms and stable .
- JB you can flash it just for fun , still under construction and testing , can't litterly judge it .
You may want to try different modems. Cell standby is mostly not influenced by the ROM but your reception and the flashed modem.
d4fseeker said:
You may want to try different modems. Cell standby is mostly not influenced by the ROM but your reception and the flashed modem.
Click to expand...
Click to collapse
My operator is Movistar from Spain and i am currently outside of the country. I flashed my S3 to JB after leaving the country and now i have no reception, can this be the reason why Cell Standby is always around 70%?
syber192 said:
After installing [ROM][AOSP] [4.1.1] Liquid JellyBean Beta 1.1 battery works pretty good without even installing kernel 1.5beta4.
Cell standby dropped to 37% and Screen to 27%
I must say this ROM works faster and adds a few cool options for personalization.
Click to expand...
Click to collapse
I am using this Rom as well and i must say it`s very good. Have a lot setup possibilities, and runs very smooth. For me i`ts the best JB Rom, better than SuperNexus. Just have the one issue - camera!

l2_hsic prevents my device from Deep Sleep. How to fix it?

Hello, I have installed BetterBatteryStats and CPU SPY, because I noticed that I had a faster than normal battery consumption when the tab was left alone.
I made a 30 mins test Wifi OFF, Flight Mode On, where the 29 mins of them showed me l2_hsic under Kernel Wakelock -> Since Unplugged.
Does anyone know what causes this and how to prevent it ?
Thank you.
( I am running Stock ICS 4.0.4 rooted)
Same problem here.
I am also having this issue as well using stock ics.
Hopefully someone might have an idea on solving this issue.
seems its a bug in 4.03 or 4.04 Roms , I searched internet and could not find any solution , The idea is this kernel wakelock is caused by some settings related issues like gps or wife or... , now I'm doing some investigation and try to find the root cause, however I wish an expert could bring some solution here
As I promised to report here is what I experienced:
My Tablet is P7500 and I did wipe , remove many applications , put in flight mode , disable this and that ,..... none of them where effective
and finally:
2 weeks ago I removed my simcard from tablet , Just to try to solve the issue I reinsert the sim and as you can see in attachment after around 45 minutes no l2_hsic wakelock .
what I mentioned above doesnt mean everybody have the same issue but I think its related to the sim and network discovery because during last 2 weeks I received notification in my status bar that says can not find network although it was on flight mode
taha_e said:
As I promised to report here is what I experienced:
My Tablet is P7500 and I did wipe , remove many applications , put in flight mode , disable this and that ,..... none of them where effective
and finally:
2 weeks ago I removed my simcard from tablet , Just to try to solve the issue I reinsert the sim and as you can see in attachment after around 45 minutes no l2_hsic wakelock .
what I mentioned above doesnt mean everybody have the same issue but I think its related to the sim and network discovery because during last 2 weeks I received notification in my status bar that says can not find network although it was on flight mode
Click to expand...
Click to collapse
You said 2 weeks ago you removed simcard from tablet and no more l2_hsic wakelock. Is your problem solved permanently?
l2_hsic
sooramma said:
You said 2 weeks ago you removed simcard from tablet and no more l2_hsic wakelock. Is your problem solved permanently?
Click to expand...
Click to collapse
Hi,
I have the exact same problem.
Tried all possible solutions with no result.
The only way is to let the Flight mode OFF, at least in my case, with stock rom TPH, WLP5.
I'm going nuts with this problem.
Yesterday I thought I had found the problem. DId several tests of getting in and out of the Flight Mode and everything was looking perfect, 5 & 6 hours of deep sleep. Then i connected a usb flash drive, that apparently also causes a kernel problem (see other posts about usb unmount). Rebooted the Tablet to solve the problem and here i go again with the l2_hsic preventing the device to deep sleep....:crying:
Hello,
I have the exact same problem and it's driving me crazy. Was anyone able to find out something new?
Thanks,
hugo.
A Custom ROM is the Solution
Hey guys, I am also a proud owner of the Galaxy Tab 10.1 GT-P7500 but unfortunately, Samsung forgot about their flagship tablet and screwed up the kernel in an otherwise utterly awesome ICS Update. The only method to solve this problem is flashing another ROM no other go. This fixed the Deep Sleep issue for me, 12 and a half hours and I'm only down to 96%. So I suggest you Root your tab ( Instructions in this link:http://www.youtube.com/watch?v=kBd9gMFCCrA ) and flash Toldo's JellyBeanRom ICS v6 ( This link:http://forum.xda-developers.com/showthread.php?t=1813651 ) and then enjoy the great Honeycomb battery standby on ICS (If you can't understand how to flash the ROM PM me :good
Happy Flashing Guys
i have toldo jellybeanrom v6 already flashed few weeks ago.. nothings changed, battery drain still remaining.
The problem is still there. AOKP 4.1.1 JellyBean, P7500 with sim card in. Same on CM10.
BTW. This is not a system issue (ICS or JellyBean). Rather something wrong in the kernels that come from Samsung. On my HTC One X (ICS) there is no such issue. Maybe some skilled developer could look at the difference in the source of this module between HOX and P7500?
Originally Posted by funky81
After search codes in the kernel related with this problem, I've found out the conclusion is that this wild uncontrolled wake lock related with data communication (modem)
Code:
./drivers/misc/modem_if/modem_link_device_hsic.c:wake_lock_init(&pm_data->l2_wake, WAKE_LOCK_SUSPEND, "l2_hsic");
I will try to update the code w/ Samsung Galaxy S3 source code in my kernel...
I will inform you if there's any progress with this
Click to expand...
Click to collapse

[Q] Battery use higher since 4.1.2.. but why? (stock)

When I got my SGS3, I could have it on for about 2 days (with minimal use and bluetooth and gps off and such), but ever since I updated to 4.1.2 (from ICS to JB), it looks like the battery drains a lot faster. So I got Titanium Backup and removed most of Samsung's' bloatware, disabled Google now and finally got BetterBatteryStats to pinpoint the source. I found some minor things and disabled them too... I've optimized all settings across the board, yet I still can't get much longer than one day.
Now I get that one day is nice, and most people charge every day, but when you're used to having 2 days (or at least 1.5 on normal use), 1 day is just.. less
So, I am kind of hoping that someone with more knowledge than me (basically everyone here ) would have a look at my BBS dump file, because I'm kind of at a loss.
It would be much appreciated!
Try turning off "Use wifi for location" in Location settings.
Arfman said:
Try turning off "Use wifi for location" in Location settings.
Click to expand...
Click to collapse
Do you mean "Location determined by wi-fi and/or mobile networks"? Isn't that used (among other things) to find the GPS sattelites way faster (because if it knows where you are, it knows where the sattelites are)? Because I use my phone for car navigation, I really would prefer not to wait 5 minutes while my phone searches the sky for GPS...
I'll turn the option off for now, but do you really think that's the main problem? Because I had the option on before this update.
Still, thank you for your suggestion
Location by wifi is unrelated to GPS location, it's just a way of roughly fixing your location by the networks and wifi around you.
It's a battery hog and doesn't matter AGPS, which is used to speed up GPS fixes but gets downloaded via your data connection.
I found JB to be better for battery life that ICS, even on a stock ROM. Since changing to a minimumcustom ROM based on the latest stock I get two days use with around 6hr screen on time.
If you are still on stock that was updated from ICS then you might be better off wiping the phone and flashing a fresh install, even if you only use the stock JB ROM for your country, as things might have become corrupted over time.
boomboomer said:
Location by wifi is unrelated to GPS location, it's just a way of roughly fixing your location by the networks and wifi around you.
It's a battery hog and doesn't matter AGPS, which is used to speed up GPS fixes but gets downloaded via your data connection.
I found JB to be better for battery life that ICS, even on a stock ROM. Since changing to a minimumcustom ROM based on the latest stock I get two days use with around 6hr screen on time.
If you are still on stock that was updated from ICS then you might be better off wiping the phone and flashing a fresh install, even if you only use the stock JB ROM for your country, as things might have become corrupted over time.
Click to expand...
Click to collapse
I turned it off, but in the past 4 hours it ate 20% battery, so didn't help anything. I guess I could go for a fresh install, but how would I do that? I'm assuming a factory reset won't do it... If you could point me to a guide or at least a location to get up to date stock roms, it would be much appreciated
Thanks!
DeltaBlast said:
I turned it off, but in the past 4 hours it ate 20% battery, so didn't help anything. I guess I could go for a fresh install, but how would I do that? I'm assuming a factory reset won't do it... If you could point me to a guide or at least a location to get up to date stock roms, it would be much appreciated
Thanks!
Click to expand...
Click to collapse
Would someone please point me in the right direction for up-to-date stock roms? Pretty please?
I think your issue is fast dormancy as you have the secril_fd wakelock.
There is an app on playstore that can toggle fast dormancy on or off on the Galaxy S3.
Give it a try and see if things improve.
Sent from my SGS3 using Tapatalk
ROM Sotmax Ultimate V14
Kernel Yank555.lu-V3.1c
corrsea said:
I think your issue is fast dormancy as you have the secril_fd wakelock.
There is an app on playstore that can toggle fast dormancy on or off on the Galaxy S3.
Give it a try and see if things improve.
Sent from my SGS3 using Tapatalk
ROM Sotmax Ultimate V14
Kernel Yank555.lu-V3.1c
Click to expand...
Click to collapse
Ok, I've installed it and turned FD off... I'll do a full charge now and see how long that keeps. Thanks for your suggestion! Is FD a new feature since JB? Because I haven't changed providers so if this has always been the case, it's probably still a seperate problem.
To be completely sure, I'd still like to do the complete reinstall, so I would really appreciate it if someone would point me in the direction of official updated stock roms. Thanks!
DeltaBlast said:
Ok, I've installed it and turned FD off... I'll do a full charge now and see how long that keeps. Thanks for your suggestion! Is FD a new feature since JB? Because I haven't changed providers so if this has always been the case, it's probably still a seperate problem.
To be completely sure, I'd still like to do the complete reinstall, so I would really appreciate it if someone would point me in the direction of official updated stock roms. Thanks!
Click to expand...
Click to collapse
You can reset it completely through Kies if you go to Tools>Firmware Upgrade and Installation and follow the instructions this will flash the latest firmware and reset your phone, do any backups you need first like contacts etc, then root the phone again or do whatever you want afterwards.
FD is not new. It just depends whether you provider supports it or not. If it is not supported and switched on it can cause battery drain.
Saying that my network does support it but when I first upgraded to XELLA I started getting the secril_fd wakelock. Switching off FD solved it at the time. Since then I have made a few changes, including modem and have switched it back on again without issue.
I noticed you've also got the Multipdp wakelock. A modem change sorted that one for me.
As I say I've since moved back to XELLA without issue and neither wakelock has returned.
Sent from my SGS3 using Tapatalk
ROM Sotmax Ultimate V14
Kernel Yank555.lu-V3.1g
I've found all the JB ROMs that I've tried to consume alot more battery than ICS, with the same set of apps running and the same location/sync settings. I eventually reverted to CheckROM 3.5 (ICS) to get decent battery life again.
corrsea said:
FD is not new. It just depends whether you provider supports it or not. If it is not supported and switched on it can cause battery drain.
Saying that my network does support it but when I first upgraded to XELLA I started getting the secril_fd wakelock. Switching off FD solved it at the time. Since then I have made a few changes, including modem and have switched it back on again without issue.
I noticed you've also got the Multipdp wakelock. A modem change sorted that one for me.
As I say I've since moved back to XELLA without issue and neither wakelock has returned.
Click to expand...
Click to collapse
Ok, thanks for the info. I don't think that's my problem though: my provider hasn't changed, the only thing that changed is that I upgraded to JB. Either way, I tested it: with FD off I still have pretty much the same result (maybe a bit better, but I need to properly test that. Yet it's definitely not the problem ). Too bad, it was a good suggestion.
ag4751 said:
You can reset it completely through Kies if you go to Tools>Firmware Upgrade and Installation and follow the instructions this will flash the latest firmware and reset your phone, do any backups you need first like contacts etc, then root the phone again or do whatever you want afterwards.
Click to expand...
Click to collapse
Thank you! I just did this. I expected that all my settings would be gone, but apparently that's not the case. All my apps remain, so I wonder if this wiped it properly? I did lose root though. Well, I'll charge it to 100% and we'll see what happens from there. Thanks!
Perhaps rolling back to your previous modem would help.
Sent from my SGS3 using Tapatalk
ROM Sotmax Ultimate V14
Kernel Yank555.lu-V3.1g
DeltaBlast said:
Ok, thanks for the info. I don't think that's my problem though: my provider hasn't changed, the only thing that changed is that I upgraded to JB. Either way, I tested it: with FD off I still have pretty much the same result (maybe a bit better, but I need to properly test that. Yet it's definitely not the problem ). Too bad, it was a good suggestion.
Thank you! I just did this. I expected that all my settings would be gone, but apparently that's not the case. All my apps remain, so I wonder if this wiped it properly? I did lose root though. Well, I'll charge it to 100% and we'll see what happens from there. Thanks!
Click to expand...
Click to collapse
overnight it lost 25% in 11h42m, so I'd say that's a definite improvement. It didn't see any use in this time, but it should last me at least 1.5 day now, so I guess the problem was in the update after all. The battery of my (6 months newer) SGS3 still holds out longer, but I think that's the battery itself: hers also charges faster than mine.
Thank you all, for helping to think up solutions and get it working for me again! :victory:
Edit: Multipdp is now a lot higer up in the list (it's the top partial wakelock), maybe I should change modems. Can someone tell me how?
You can download a flashable zip from here.
http://forum.xda-developers.com/showthread.php?t=2076857
[REF] Galaxy S3 RIL+Modem CWM Flashable Collection
just flash it from recovery.
XDLID is a good one to start with.
Sent from my SGS3 using Tapatalk
ROM Sotmax Ultimate V14
Kernel Yank555.lu-V3.1h

[Q] ICS battery problem

Hi Folks,
Recently, I updated my Samsung Galaxy Tab 10.1 from Honeycomb to ICS (Android 4.0.4). As a result, I now find that battery capacity falls at 1.4% per hour even when the display is off and the tab is in airplane mode! The culprit would appear to be the l2_hsic kernel wakelock. Is there anything I can do about this? My tab is not rooted.
Thanks in advance.
AD
Anne Droid said:
Hi Folks,
Recently, I updated my Samsung Galaxy Tab 10.1 from Honeycomb to ICS (Android 4.0.4). As a result, I now find that battery capacity falls at 1.4% per hour even when the display is off and the tab is in airplane mode! The culprit would appear to be the l2_hsic kernel wakelock. Is there anything I can do about this? My tab is not rooted.
Thanks in advance.
AD
Click to expand...
Click to collapse
Never had ICS running on my tab, went from android 2.3 stock to cm10 and now cm10.1, but i heard everywhere on the gtab forum that stock ICS came out with a battery drain issue on tab, so i don't think that there is a fix for it now..
L2_hsic has to do something with the usb connection, most of the time after you full charge, the wakelock becomes active. You should try to restart the tab in order for wakelock to go back to normal again
DefQoN_BE said:
Never had ICS running on my tab, went from android 2.3 stock to cm10 and now cm10.1, but i heard everywhere on the gtab forum that stock ICS came out with a battery drain issue on tab, so i don't think that there is a fix for it now..
L2_hsic has to do something with the usb connection, most of the time after you full charge, the wakelock becomes active. You should try to restart the tab in order for wakelock to go back to normal again
Click to expand...
Click to collapse
Hello,
Many thanks for your reply.
You have confirmed my findings. Clearly, there is a battery drain issue with stock ICS on the tab. I think it may also extend to some Samsung phones.
I will try your suggestion of restarting my tab to see if it has any effect on l2_hsic.
AD
Hi,
I restarted my tablet but, this morning, same again. The only kernel wakelock that had been active overnight was, you guessed it - l2_hsic. Once again, battery fell by 1.4% per hour. I really hope that Samsung do something about this soon.
AD
Samsung? I wouldnt bet on it......
GV
Anne Droid said:
Hi,
I restarted my tablet but, this morning, same again. The only kernel wakelock that had been active overnight was, you guessed it - l2_hsic. Once again, battery fell by 1.4% per hour. I really hope that Samsung do something about this soon.
AD
Click to expand...
Click to collapse
As I said in another thread, my problem is solved. 3 months passed and the tablet works as it should.
If you need any help...
http://forum.xda-developers.com/show...y+drain&page=6
Phibs said:
As I said in another thread, my problem is solved. 3 months passed and the tablet works as it should.
If you need any help...
http://forum.xda-developers.com/show...y+drain&page=6
Click to expand...
Click to collapse
link not working, please repost

[Q] Any custom ROM for battery hogging Galaxy Tab 3 8.0?

I have the Galaxy Tab 3 8.0 (WiFi) running KitKat 4.4.2 and every time I want to use it, the battery is low even though I left it at 100%. I've been trying to improve it for quite a while now. I rooted it and removed everything I could find on the lists that's safe to remove, turned off everything I don't really need, and I have Better Battery Stats and Wakelock Detector on it as well as No Bloatware and Titanium Backup. Also removed many apps that I had installed myself that seemed to be using the battery a lot. I turn off sync and WiFi when I'm not using the tablet. My efforts have improved it but it's still not good. I've done all I know to do, and I'm at the point where I'd install a custom ROM if I could find one for it. I've done some searching and haven't found any. Can anyone tell me if there is a custom ROM that will work for this tablet? Or perhaps I can "downgrade" it back to Jellybean (which it originally came with) if I can find out where to get that ROM for it someplace (I'd prefer a custom ROM though). Any ideas?
Thanks much.

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