Kernal wake lock problem.... - Galaxy S II Q&A, Help & Troubleshooting

Hi all, I seem to have a problem with kernal wake locks running my battery down. I installed WXLPY NeatRom Lite about 3 weeks ago have tried flashing and reinstalling the kernal, even a different kernal but still running it down. I upgraded the kernal to 3.0.31-Siyah-v5.0.1+ but still the same if not worse. I charged my battery 100% about 15 minutes ago and it's already at 89%....could someone please recommend a more stable ROM or how I can get back to stock ROM as this doesn't seem to be doing my phone any favours. Plus keep losing use of my camera, lags to much and constantly having to restart to get signal or cause it's frozen.
Pretty new to this but good at following instructions.
Sent from my GT-I9100 using xda app-developers app

Kaz0721 said:
I charged my battery 100% about 15 minutes ago and it's already at 89%
Click to expand...
Click to collapse
You should find out what is causing this problem. Look here. If you find kernel wakelocks, search in xda why they occur and how to suppress them.
You can then decide to go for a new kernel or a stock rom.

Hi, thanks for that. I've tried better battery stats and that's how I found or about the wake locks, it didn't seen to do much, as in telling me what was actually causing them. I've tried a different kernal recommended by Neat ROM developer but that just seemed to make it worse. What's the easiest way to return to stock ROM. Only installed this cause I failed to update to 4.0.4 after unlocking phone. Plus, this battery is less then a month old.
Sent from my GT-I9100 using xda app-developers app

Related

Fascinate CM7 standby battery drain

So i have a verizon fascinate and am currently running cm7. (first tried the stable release but niw a nightly). Im eeally liking cm, but since i got it my battery life is garbage. Basically the drain seems to come from either the android os sercice or cell standby. Whenever i leave my phone inactive for a while, when i wake it up the battery has dropped a lot and tge phone is very warm. I have been modding this phone for a while, but im no android programmer. Purely based on the forum searchi. G ive done on the issue, it seemsblike cm7 has an issue with my modem or radio.
Extra info: my 3g/2g signals seem fine (always 0% time without signal). Wifi connectivity seems fine. Im also running glitch's kernal altho the problem has persisted with and without it (i did do a kernel cleaning first). I used the "go from anything to jb vanilla" guide cuz i was having issues switching to mtd at first (sry dont have a link rite now but it was on xda) . I get occassional force closes, but not really a problem. When i did a titanium back up, the very first time i flashed cm7 i Did restore system settings, but i did not do that every time since then. Ive done a fresh flash of the stable mod around 3 times trying different stuff, but this one is niggtly as i said, and each has had this issue.
If looked around a lot, and wgile this seems common, no one has posted a consistent solution or explanation to the problem, so thats what im looking for.
Sent from my SCH-I500 using XDA App
Hellomello13 said:
So i have a verizon fascinate and am currently running cm7. (first tried the stable release but niw a nightly). Im eeally liking cm, but since i got it my battery life is garbage. Basically the drain seems to come from either the android os sercice or cell standby. Whenever i leave my phone inactive for a while, when i wake it up the battery has dropped a lot and tge phone is very warm. I have been modding this phone for a while, but im no android programmer. Purely based on the forum searchi. G ive done on the issue, it seemsblike cm7 has an issue with my modem or radio.
Extra info: my 3g/2g signals seem fine (always 0% time without signal). Wifi connectivity seems fine. Im also running glitch's kernal altho the problem has persisted with and without it (i did do a kernel cleaning first). I used the "go from anything to jb vanilla" guide cuz i was having issues switching to mtd at first (sry dont have a link rite now but it was on xda) . I get occassional force closes, but not really a problem. When i did a titanium back up, the very first time i flashed cm7 i Did restore system settings, but i did not do that every time since then. Ive done a fresh flash of the stable mod around 3 times trying different stuff, but this one is niggtly as i said, and each has had this issue.
If looked around a lot, and wgile this seems common, no one has posted a consistent solution or explanation to the problem, so thats what im looking for.
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
You could flash jt's vanilla gb rom. That has good battery life.
Sent from my SCH-I500 using XDA App
Plus do you have an overclock?
Sent from my SCH-I500 using XDA App
I have had the standby battery drain on every CM7 version and Kernel tried so far including 7.1 stable,7.0 nightlies,JT's Vanilla,and PoolParty. It's even worse if I shut phone down and don't plug in. It will drop 50 to 75% overnight with phone not on?
Has done it with undervolting,overclocking,and voltage control not even installed. This is first time I have seen others having similiar issues.
I think this is a known issue for all MTD roms on the fascinate, if I'm not mistaken.
Sent from my SCH-I500 using xda premium
TheBDub said:
I think this is a known issue for all MTD roms on the fascinate, if I'm not mistaken.
Sent from my SCH-I500 using xda premium
Click to expand...
Click to collapse
I lose only 5% to 10% overnight on CM7 never really notice how much on MIUI cause I never ran it long enough. I guess every phone would behave differently for MTD's or maybe you have an app or mulitple ones that refreshes frequently(Fancy Widget comes to mind).
Well that really sucks, because i do enjoy cm7. But this also means if i go back to a touchwiz configuration like stock dl09 i shouldnt have these issues right?
But before that, has anyone who had these issues tried anything (ie kernels or maybe standby mode power conservation setting, etc... ) that have at least noticeably improved your battery life? Right now mines pretty unbearable (im talking 8hrs while on but totally inactive), but if i can get it up a little i might b able to manage.
Sent from my SCH-I500 using XDA App
I am also experiencing poor battery life. I just flashed 7.1.0 yesterday and absolutely love it. Was using com rom for a few months, but a friend said to try out cwm 7. I used to get about 6 - 8 hours of Pandora while at work and today I only got about 4 before my phone shut off. I'm going to try completely killing battery and charge with phone off tonight an see if it's any better tomorrow.
Any other suggestions? I'm not a noob when it comes to custom roms and flashing (I used to flash the **** out of my G1) but there may have been something I over looked when switching to cwm7. I wiped everything a few times before flashing including battery stats and dalvic.
My battery life is actually really good. Running latest nighty, undervolted -75 across the board,stock kernel, and no overclocking.
Just can't figure why I lose 50-75% of battery overnight when phone is shut down and not charging?
I have the same issue with CM7.1, turning phone of at 80% battery at night to find it at 25% at morning
Is there knows solution?

[Q] Running Hot - Any suggestions?

My first time posting here, so please be gentle.
I've had my SGS2 for around 6 months now, its an unlocked ASIA (as I live in BKK). I noticed on the original stock firmware that the phone was running hot, as in the back panel around the camera would heat up to the point I could feel it in my pocket. This would normally happen if I was using a game like angry birds, or a psx emulator. But sometimes it would happen in the browser under normal conditions. I just thought this may be a issue with dual core phones, so I took this as a 'feature' and accepted it.
But now lots of people I work with have this phone, and it came up in conversation about heat. Everyone stated they do not have this issue, that the phone remains cool all the time.
I have moved between many different ROMs, and have finally stuck with Westcrips ICS ROM. Then a strange thing happened, the heat issue goes away with version 8.4. Phone is cool all the time, even playing my PSX emulator in software mode. Battery also increased from 12 hours to 16-18 hours.
But now I just moved up to 9.3, and its back again, the front screen is very hot to touch when using things like the MX video player, or surfin the web. And if I launch a game ... well, forget about it. The battery drain is immense to, be lucky if I pull an hour of use like that.
Anyone else suffer from this? Hardware fault? I can't take it back because my flash counter is probably in the 20's now, and I can't find a reset JIG in Bangkok.
Cheers.
FYI, I always do a clean wipe, dalvik / cache / permissions.
same issued here, phone bought from Thailand also. Phone getting hot when browser,downloading and playing some games( not all). And its really hot
Changing Rom and kernel sometimes solved it for awhile but eventually will come back.
Looking for solution also
Thanks
P/s: right now im using LA4 stock Rom and CF root LA4 kernel and still get hot
Saisuay said:
same issued here, phone bought from Thailand also. Phone getting hot when browser,downloading and playing some games( not all). And its really hot
Changing Rom and kernel sometimes solved it for awhile but eventually will come back.
Looking for solution also
Thanks
P/s: right now im using LA4 stock Rom and CF root LA4 kernel and still get hot
Click to expand...
Click to collapse
Thanks for getting back to me.
The one I know that fixes it is Resurrection 8.4. Its a dam good rom, and given me the best battery life (once I got 20 hours with normal use). But there is an issue with touch screen sensitivity that makes it annoying.
Maybe its something to do with the Kernel on the Asian models?
If I find a fix I'll pm you.
Hmmm mine only gets uncomfortably hot when playing some 3d games. Didn't experience the same level of heat when just browsing though... It just gets a little warm but far from gaming temps.
What i did was undervolt and underclock when playing. It did reduce the heat and extend the battery though i admit it's not the best solution / workaround.
Sent from my GT-I9100 using XDA App
What settings did u use for setcpu if u don't mind me asking? Will it work on ICS?
Sent from my GT-I9100 using XDA App
I use Tegrak Overclock so I can mess with clocks and voltages with the stock kernel. See below for my settings... 100% stable on my phone.
fujidave said:
Thanks for getting back to me.
The one I know that fixes it is Resurrection 8.4. Its a dam good rom, and given me the best battery life (once I got 20 hours with normal use). But there is an issue with touch screen sensitivity that makes it annoying.
Maybe its something to do with the Kernel on the Asian models?
If I find a fix I'll pm you.
Click to expand...
Click to collapse
Thanks man. I too will try to find a solution.
fyi, i tried several Modem, CSC, kernel and Rom but nothing seem to really work.
Krauxe said:
I use Tegrak Overclock so I can mess with clocks and voltages with the stock kernel. See below for my settings... 100% stable on my phone.
Click to expand...
Click to collapse
Cheers mate, will give that a go when I get home.
Right now my phone is warm all the time, just lost 20% battery as well in 1 hour.
Sent from my GT-I9100 using XDA App
Well it looks like the ICS kernel is not supported right now under Tegrak. It is bleeding edge.
I tried setCPU to under clock but ended up with a lot of slow down and some full system freezes.
Guess its back to 8.4 until I find a more definitive answer.
Sent from my GT-I9100 using XDA App
Since you're using Westcrip's Resurrection Remix, you can get rid of the triangle by using Chainfire's TriangleAway app - I'm using Resurrection too and it got rid of the flash counter and the triangle.
TriangleAway should work on all ICS roms though.
Strange, installed triangle away yesterday evening. Work like a charm, so I guess if I need to return I can now.
Sent from my GT-I9100 using XDA App
Thats not normal, it happened to me with my previous SGS2. Changed in warranty by my carrier.
Cheers.
Same frome here: use the warranty its not normal...
Sent from my GT-I9100 using XDA App
I guess that's my only option. On a new from and its cool now, but reset my counter for the flash so can get a service now.
Sent from my GT-I9100 using XDA App
i have resolved my problem by flashing a custom rom.
which from did you flash?
I'm using Thebyani ics v3 and after I disabled the stock browser all is good. Battery life too.
Sent from my GT-I9100 using XDA App

[Q] Help, new to this

Hi, I downloaded and installed XWLPY NeatRom Lite v3.5 (18th October 2012)a couple of days ago and now my battery is draining extremely fast. I tried a couple of battery managers and nothing seems to work.
Anyone with any ideas on what I can do to remedy this? Plus I can't see the update section in my settings, is it removed with this software?
Kaz0721 said:
Hi, I downloaded and installed XWLPY NeatRom Lite v3.5 (18th October 2012)a couple of days ago and now my battery is draining extremely fast. I tried a couple of battery managers and nothing seems to work.
Anyone with any ideas on what I can do to remedy this? Plus I can't see the update section in my settings, is it removed with this software?
Click to expand...
Click to collapse
The ROM doesnt have an update because the devs have removed it because you just flash an update. As for the battery drain give it a few more days if the problem persists try another ROM. If it still persists after that try recalibrating the battery or resetting the fuel gauge chip.
Hope this helps
NeatROM v3.5
Kaz0721 said:
Hi, I downloaded and installed XWLPY NeatRom Lite v3.5 (18th October 2012)a couple of days ago and now my battery is draining extremely fast. I tried a couple of battery managers and nothing seems to work.
Anyone with any ideas on what I can do to remedy this? Plus I can't see the update section in my settings, is it removed with this software?
Click to expand...
Click to collapse
Hi,
NeatROM 3.5 is one of the best ROMs from battery backup perspective. And I can say that because I am using it since 3.5 came out and have never had any issues.
For a better battery life, follow the steps from the link,
http://forum.xda-developers.com/showpost.php?p=33045733&postcount=8776
Please note that the instructions are prepared to get the most out of your battery. Even if you follow the few ones that you are comfortable with, you will surely see some improvement.
Please press Thanks if this has helped you.
NeatROM 3.5 is one of the best ROMs from battery backup perspective. And I can say that because I am using it since 3.5 came out and have never had any issues.
Click to expand...
Click to collapse
I agree with you .I use NeatRom 3.5 with Dorimanx, the best combination for me.
Adarzannh said:
The ROM doesnt have an update because the devs have removed it because you just flash an update. As for the battery drain give it a few more days if the problem persists try another ROM. If it still persists after that try recalibrating the battery or resetting the fuel gauge chip.
Hope this helps
Click to expand...
Click to collapse
Sound complicated, thanks though.
Kaz0721 said:
Sound complicated, thanks though.
Click to expand...
Click to collapse
Its simple mate. Just download an app and hit a button.
Usually battery drain is due to one of two things.
-Phone not going into deep sleep
-Wakelocks.
Download an app like CPU spy. you can use it to see whether or not your phone is going into deep sleep like it should. Also, use better battery stats to look for wakelocks. Download the app from HERE , let it run for one battery cycle and then check for wakelocks. If you dont know what those are, spend some time reading that thread.
But if you want to hold off for a couple of days, you can do that. It does take some time for a phone battery to settle when a new rom/kernel has been installed, after which battery life tends to improve.
HAXTREME said:
Its simple mate. Just download an app and hit a button.
Usually battery drain is due to one of two things.
-Phone not going into deep sleep
-Wakelocks.
Download an app like CPU spy. you can use it to see whether or not your phone is going into deep sleep like it should. Also, use better battery stats to look for wakelocks. Download the app from HERE , let it run for one battery cycle and then check for wakelocks. If you dont know what those are, spend some time reading that thread.
But if you want to hold off for a couple of days, you can do that. It does take some time for a phone battery to settle when a new rom/kernel has been installed, after which battery life tends to improve.
Click to expand...
Click to collapse
Thank you very much for your help mate. I've tried a couple of battery managers off play (juice defender and another one). Right now kind of regretting this download, everything seems to be going wrong;
1. battery is draining @ 15% in 20 mins ( I only bought the battery last week after having the phone unlocked).
2. there's a lot of lag
3. screens keep freezing and
4. keep losing reception and constantly having to restart phone.
I only downloaded this cause after unlocking my phone it failed to update. Is there any other that I can download that works well with SGS2?
There's no dearth of ROMs for the i9100 dude. Try a couple out and see if those help. If its stability you're after, maybe use an ICS Rom rather than JB.
15% in 20 mins isn't normal even for a first day..you sure it isn't a faulty battery right? Was it giving decent life before you switched to this ROM?
Try downloading a calibration app and see what the voltage is when it says its charged 100%. Should be around 4100-4200 mAh.
As for the lags and freezes, did you wipe data, cache etc before you installed this Rom?
Sent from my GT-I9100 using xda app-developers app
I had cleared the cache in settings before installing. Like I said, my first time doing this. Seemed straight forward at the time.
Since my phone is unlocked, will it return to ics4.0.3 which is what I had before?
Battery calibration app is showing 4161mv.
Will a factory reset help?
Thanks for all the help, site can be a bit confusing sometimes lol.
Sent from my GT-I9100 using xda app-developers app
Kaz0721 said:
I had cleared the cache in settings before installing. Like I said, my first time doing this. Seemed straight forward at the time.
Since my phone is unlocked, will it return to ics4.0.3 which is what I had before?
Battery calibration app is showing 4161mv.
Will a factory reset help?
Thanks for all the help, site can be a bit confusing sometimes lol.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Cache from settings? No. I meant clearing cache from the CWM recovery menu. If you installed the ROM via CWM, that is.
If you did, I'd suggest reinstalling it again via cwm this time clearing data, cache and dalvik cache.
Ok..I just realised I totally assumed you'd installed it using CWM. Not sure if you did.
You can return to 4.0.3 if you want. Download stock firmware from sammobile.com and install it via Odin. I'm sure there's a guide on how to do that somewhere on this site.
Just noticed someone posted instructions on maximising battery. Did you use those? It could explain the freezes if they started after that. Some phones just can't handle undervolting etc.
Sent from my GT-I9100 using xda app-developers app
Morning, I downloaded some battery managers and seems to be working better and faster. Battery discharged 27% in 5 hours.
Will see how it goes over the next couple of days.
Teaches me a lesson to do my research first lol.
Below is a screen shot of the apps I installed.
Thanks and gave a great day!
Sent from my GT-I9100 using xda app-developers app
Haha that's a lotta apps just to save battery. As long as it helps eh? 27% in 5 hours is pretty acceptable for moderately heavy use. Depends on your signal strength and whether you're using data or on WiFi etc.
Sent from my GT-I9100 using xda app-developers app

[Q] X-File with my battery

Hello guys,
I'm a little bit desperate with my battery. One month ago I updated from ICS to JB in my s2 i9100 and the horrible loop started:
- Between 100-70% of charge everything is going more or less ok
- Suddenly, phone turns off. After restarting, the battery is around 40% and very unstable
- Now it's even worse, without charger, the phone remains up only 15-20 minutes.
I tried EVERYTHING:
- All the roms for JB (all versions of RR, Paranoid Android) with all the combination of Kernels (CM10, Siyah and Dorimanx)
- Go back to ICS (of course, for every ROM I give to the phone 2-3 days to stabilise it)
- Battery calibration tools of the play store (even I paid 3$ for one of them)
- Battery calibration without being ROOT (the trick of this thread did not work. I tried 3 times)
- Reset fuel gauge chip from the ex-Tweaks
...
Any other idea/clue?
I'm about to give up, I think I'm going to get a new battery. I prefer to pay 15-20$ than spending hours trying to figure it out.
The last question. I'm assuming that a brand new battery will fix this problem. Am I right? I'm afraid of buying a new battery and facing the same issue.
If I get a new one I am supposed to do some operation on the phone before to install it?
Currently I'm using RR 3.1.1 with dorimanx kernel.
Thank you very much in advance!*
You guys do an AWESOME job with this forum.
How is your battery now? Did you try to remove it for a while? Did you test to wipe battery stats in recovery?
Nico_60 said:
How is your battery now? Did you try to remove it for a while? Did you test to wipe battery stats in recovery?
Click to expand...
Click to collapse
My battery SUCKS now. If I'm using the telephone in a normal way (surfing, music, videos)... it goes down every 30 minutes.
I'm going to try to remove for a while right now. You mean, minutes, hours, days?
Yes, I tried to wipe battery stats from recovery with no results.
Thank YOU very much for your interest
just remove it 2-3 min but i don't think it will be better. Can you tell me how is it after. Thanks.
Nico_60 said:
just remove it 2-3 min but i don't think it will be better. Can you tell me how is it after. Thanks.
Click to expand...
Click to collapse
I did it and same problem.
I don't know if there is anything else to test...
Sorry for my no help
Sent from my GT-I9100 using xda premium
Try RootBox 3.0 with dorimanx 7.4. I've been using it since it came out with no problems.
If you're worried about battery try better battery stats to check the wakelocks and cpu spy to see if your device is deep sleeping
Sent from my Nexus 7 using xda premium
I gave up
Hi guys,
Quick post just to say that I got a brand new battery.
Problem solved
Thanks!
soriaedu79 said:
Hi guys,
Quick post just to say that I got a brand new battery.
Problem solved
Thanks!
Click to expand...
Click to collapse
Glad you solved it
Sent from my Nexus 7 using xda premium

[Q] do all custom roms heat up the phone and drains battery even on moderate use?

i tried out a few custom roms: neat rom, cm11, omni.... and they all share they same issue i've been trying to solve. BATTERY PROBLEM!
the thing i love about the 4.4 custom roms is how fast they move.... i try flashing kernels, underclocking with boeffla an the things still cant last a full day, an heat up massively on moderate use: music, whatsapp, sms,web browsing...
if anyone else has this problem and finds a solution to it please let me know. am kinda new hear so is there something am not doing rite?
prezzi said:
i tried out a few custom roms: neat rom, cm11, omni.... and they all share they same issue i've been trying to solve. BATTERY PROBLEM!
the thing i love about the 4.4 custom roms is how fast they move.... i try flashing kernels, underclocking with boeffla an the things still cant last a full day, an heat up massively on moderate use: music, whatsapp, sms,web browsing...
if anyone else has this problem and finds a solution to it please let me know. am kinda new hear so is there something am not doing rite?
Click to expand...
Click to collapse
Not for me. Did u overclock ur fone?
Sent from my GT-I9300 using xda app-developers app
nooo... underclocked to 1.3... smh
i guess maybe kitkat roms just done like my i9300
Try other kernel like googy max
It might be a hardware issue then. Try flashing stock, if still happens means hardware issue. If not, most probably the custom roms.
Sent from my GT-I9300 using xda app-developers app
When I first got my phone on stock S3 firmware, it lasted 5-6 hrs with minor use. If you want to make the custom roms last longer on KitKat, stay away from Archi, undervolt and underclock the cpu. If you want it to last an insane amount of time, enable flight mode. ;DD
krisando said:
When I first got my phone on stock S3 firmware, it lasted 5-6 hrs with minor use. If you want to make the custom roms last longer on KitKat, stay away from Archi, undervolt and underclock the cpu. If you want it to last an insane amount of time, enable flight mode. ;DD
Click to expand...
Click to collapse
5-6 hours with minor use is EXTREMELY low.
Sent from my GT-I9300 using xda app-developers app

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