[Q] Kworker - my worst enemy! - AT&T Samsung Galaxy S II SGH-I777

What exactly is the process kworker, and what does it do?
On two different custom roms (Shostock and Phone Bricker - multiple versions, even with latest v2.7), this process is KILLING my battery, to the point of 25-30% overnight with ZERO usage.... sending 1-2 text msgs in a row, I could watch the percentage drop 1-2% in that short time.
On STOCK rom with stock kernel, or Cherry Picker or Siyah kernels, I do NOT have this problem and I can get 24-36 hours of unplugged time with at least 12 of those hours being heavy to moderate usage... I can sit and post in Facebook for a solid hour and only go through 2-3%... but if I go custom, I'd lose 3-4x that amount of power.
I'm just wondering what I'm missing....

I know its with the kernel. It used to be a problem with Linux, but updates fixed it. I have a few kworker process that I to would like to get rid of on my phone... though, they dont wear down my battery like yours! Mine keep my phone awake for a while... thats about it. I am going to watch this thread closely to see what people have to say about FIXING this issue...

I'd appreciate that... I don't like being restricted to a stock rom just to get decent battery life.

Today I installed Phone Bricker v2.7 after a complete reset... simply loaded the rom, didn't sign in with Google, simply loaded an app to monitor usage and took a nap... in not even 90 mins, it'd already dropped to 92% from a full charge with no usage.

I'm seeing this type of behavior from both Phone Bricker and ShoSTOCK.
Am I doing something wrong?

Gotta give it a couple days to settle. Battery percentages will never report correctly for the first couple days after flashing a new kernel (and both of those ROMs include a kernel, I believe). It's been posted a couple times throughout this forum, but I know it's a little hard to find sometimes, so I'll cut you a break. See here for a recent example.
After a few days, then you can check to see if kworker is still killing your battery, and you'll have a much better idea.

Well, I'd run Phone Bricker for roughly 2 weeks, dating back to v2.5, and tried sticking it out through the "settle" time on v2.7 as well, but performance never improved.
Also worked with ShoSTOCK, also well over 2 weeks with no negligible improvement... my battery just kept being drained and it's taken me the better part of a month to narrow down this one process that is the culprit.

Midnight1970 said:
Well, I'd run Phone Bricker for roughly 2 weeks, dating back to v2.5, and tried sticking it out through the "settle" time on v2.7 as well, but performance never improved.
Also worked with ShoSTOCK, also well over 2 weeks with no negligible improvement... my battery just kept being drained and it's taken me the better part of a month to narrow down this one process that is the culprit.
Click to expand...
Click to collapse
Have you done a true full wipe?...not just dalvik and cache?
Sent from my SGH-I777 using XDA

I do a full factoy reset; clear cache, clear dalvik... am I missing something?

I did factory reset/wipe, clear cache and dalvik before going to phonebricker and entropy dafuq kernel... I have the issue of battery drainage but I just did it a day or two ago. Will give it some time to settle and report back!
Sent from my SGH-I777 using XDA

Mini update:
Live wallpapers, even if screen is off, will drain your battery like crazy.
Checked Facebook on 100% charge, was on for maybe 10minutes. Turned off screen for a little over an hour. When I checked my phone I had 90% battery. 1%/min drain? Hmm... I turned off tgeclive wallpaper and my battery is now at 83% after 4 more hours and some mild/moderate use of the phone.
Might not be news, but a great tip. Didn't have this issue as bad on stock GB, but I still refuse to run live wallpapers after seeing that happen.
Clay
Sent from my SGH-I777 using XDA

clay101eve said:
Mini update:
Live wallpapers, even if screen is off, will drain your battery like crazy.
Checked Facebook on 100% charge, was on for maybe 10minutes. Turned off screen for a little over an hour. When I checked my phone I had 90% battery. 1%/min drain? Hmm... I turned off tgeclive wallpaper and my battery is now at 83% after 4 more hours and some mild/moderate use of the phone.
Might not be news, but a great tip. Didn't have this issue as bad on stock GB, but I still refuse to run live wallpapers after seeing that happen.
Clay
Sent from my SGH-I777 using XDA
Click to expand...
Click to collapse
Not all LWPs do this...only the badly coded ones.

I've never used LWP because I'd always heard/assumed it was a battery kill - can you recommend some that you know to be solid?
Thanks for all the feedback so far gang.... as for this stock rom, as we sit, it's at 16 hours off charge and I'm still at 66% with moderate usage, and that's just beautiful, I just wish I could achieve the same with aftermarket roms as well.

Anyone???
I'd went back to stock, and it was working AWESOME for about 2 weeks as far as battery life goes, but suddenly the phone would lose it's data connection, requiring a reboot. After the reboot the phone had no signal bars, just a 0 with a line through it.... 3-4 restarts later, 3G + data would eventually come back, but data would last sometimes 5 minutes, or 5 hours before stopping.
I was out of town for 3 days, just got back, and while on the road I lost signal so much that I had no choice but to pull over, fire up the laptop and download a new rom... I did a full wipe, factory reset/data, wipe cache and dalvik and was using Shostock v3.0. I had horrid battery time due to this and I feel after 3 days of moderate usage, it's had time to "settle" with no changes. Had ZERO data problems, but horrid battery time due to kworker.
Last night (roughly 12 hours ago) I installed Serindipity 9, and already right out of the gate, showing kworker just blasting the battery... this process is haunting me with the roms I'm installing...
I installed a new SD card for troubleshooting purposes... no affect.

Midnight1970 said:
I've never used LWP because I'd always heard/assumed it was a battery kill - can you recommend some that you know to be solid?
Click to expand...
Click to collapse
Sorry, I never saw this post. The ones that I use on and off are:
- Galaxy Pack by Maxelus (really, any Maxelus LWP is excellent)
- Water Drops Plus
- Ice Cream Sandwich Live WP by Vectors and Pixels (another really good developer)

Midnight1970 said:
Anyone???
I'd went back to stock, and it was working AWESOME for about 2 weeks as far as battery life goes, but suddenly the phone would lose it's data connection, requiring a reboot. After the reboot the phone had no signal bars, just a 0 with a line through it.... 3-4 restarts later, 3G + data would eventually come back, but data would last sometimes 5 minutes, or 5 hours before stopping.
I was out of town for 3 days, just got back, and while on the road I lost signal so much that I had no choice but to pull over, fire up the laptop and download a new rom... I did a full wipe, factory reset/data, wipe cache and dalvik and was using Shostock v3.0. I had horrid battery time due to this and I feel after 3 days of moderate usage, it's had time to "settle" with no changes. Had ZERO data problems, but horrid battery time due to kworker.
Last night (roughly 12 hours ago) I installed Serindipity 9, and already right out of the gate, showing kworker just blasting the battery... this process is haunting me with the roms I'm installing...
I installed a new SD card for troubleshooting purposes... no affect.
Click to expand...
Click to collapse
don't worry you are not alone. seems like this kworker issue is going around and making lot of people crazy including me.
I tried removing all application which use some kind of timer. Still no go, the kworker comes back to haunt me too all roms - aokp, phone bricker, serendipity, even hell raised one

This issue has just about killed my ability to use any custom rom on this phone.... surely I can't be the only one affected???
I see in another post that this seems to be a hot topic, but then again there are so many others that seem to be flying with no problem....
#totalfrustration

Midnight1970 said:
Anyone???
I'd went back to stock, and it was working AWESOME for about 2 weeks as far as battery life goes, but suddenly the phone would lose it's data connection, requiring a reboot. After the reboot the phone had no signal bars, just a 0 with a line through it.... 3-4 restarts later, 3G + data would eventually come back, but data would last sometimes 5 minutes, or 5 hours before stopping.
I was out of town for 3 days, just got back, and while on the road I lost signal so much that I had no choice but to pull over, fire up the laptop and download a new rom... I did a full wipe, factory reset/data, wipe cache and dalvik and was using Shostock v3.0. I had horrid battery time due to this and I feel after 3 days of moderate usage, it's had time to "settle" with no changes. Had ZERO data problems, but horrid battery time due to kworker.
Last night (roughly 12 hours ago) I installed Serindipity 9, and already right out of the gate, showing kworker just blasting the battery... this process is haunting me with the roms I'm installing...
I installed a new SD card for troubleshooting purposes... no affect.
Click to expand...
Click to collapse
I'm running Shostock 3.0.4 w/included cherrypicker kernel. Battery life has been great.
Watchdog is picking up random kworker processes as well but no where near the run times(longest was 52sec) you're experiencing. I wonder what the difference is....

BROKKANIC said:
I'm running Shostock 3.0.4 w/included cherrypicker kernel. Battery life has been great.
Watchdog is picking up random kworker processes as well but no where near the run times(longest was 52sec) you're experiencing. I wonder what the difference is....
Click to expand...
Click to collapse
At this point - I'd LOVE to know. Some are getting great usage with custom roms, and I'm still stuck on stock because ANY other rom kills my battery in less than a day... drops 25-30% overnight unused.
I really wish someone could shed some more light on this...........

Midnight1970 said:
At this point - I'd LOVE to know. Some are getting great usage with custom roms, and I'm still stuck on stock because ANY other rom kills my battery in less than a day... drops 25-30% overnight unused.
I really wish someone could shed some more light on this...........
Click to expand...
Click to collapse
I apologize in advance, but could you provide more specifics on Watchdog? What version, author, etc? I'm reluctantly am gonna reinstall shostock2 v3.0.4, monitor and report back - any help you could provide on watchdog would be great! Thanks!

Related

Am I the only one impressed by the SGS2's battery life?

After reading through so many threads about owners having issues with the battery life, I thought I'd start a happy thread!
I've had my SGS2 for almost two weeks now and I've always been happy with the battery life because it seemed to last a while.
I'm not up to the stage where i can just leave the phone alone (because I always want to play with it!), but I did an experiment 3 nights in a row to see how much power the phone drains in standby mode.
Each night, I'd charge my phone up to 100% and take it off the charger and then wake up to see how much power is remaining.
I left all the settings as-is and DID NOT turn anything off (eg 3G, etc).
The first night, I didnt touch my phone from 11pm and woke up at 7am to see that there was 97% battery left.
The second night, I left the phone alone at 11:30pm and woke up at 8am with 96%.
The third night, I slept at midnight and woke up at 8am to have 97% left.
If I average it out, it means that the phone on standby drains a lot less than 1% per hour. At that rate, the bettary seems like it can go with minimal use for at least two or three days. But it's something that I haven't been able to test just yet because I'm constantly surfing the net, testing out apps, etc during the day.
Admittedly, I don't have all that much installed on the phone that could possibly drain battery:
Friend Caster
Kakao
Whatsapp
Crazy Colours Live Wallpaper
Seekdroid
Official EBay
Battery Solo Widget
"Standard" clock
"Applications Running" widget
(I've got more applications, but the ones listed above are the ones that might have some sort of network connection and/or widgets that may need to update during the night).
I'm also using stock Vodafone Australia firmware in Melbourne city (in Australia):
Baseband: I900TDUKF4
Kernel Version: 2.6.35.7-I9100TDUKF4-CL331615
Build Number: GINGERBREAD.DUKF4
Does anyone else get battery life like this?
I'm not sure how big a role the network plays in these stats because I'm based in the centre of a major city.
As much as I hate the Vodafone bloatware, I've been reluctant to flash other firmwares like I did on my previous HTC Aria/HTCHD2/HTCDiamond because this one works so well with the battery.
3% battery over night ?. I get under 10%, with all off what can be off, with no funky widgets, no data, no wifi, no nothing. Still phone wakes up in the night for unkown reason and 80% of battery is taken by mysterious Android OS process.
I had Optus bloatware and I kept it for a week or two. I wasn't unhappy with the battery life but wanted to customise it and get root.
After flashing Lite'ning it was obvious how much less battery drain there was. I have since moved to Cognition and I am very happy with how it's going. I charge nightly, but I've never had the battery drop below 50%, and I do use the phone quite a lot. I wouldn't say I'm a heavy user (it's all so subjective) but I would have to be at least medium if not more.
I also love the Black Theme by Nitrozk and Pele, which is why I moved from Lite'ning to Cognition to begin with.
Dr.Sid said:
3% battery over night ?. I get under 10%, with all off what can be off, with no funky widgets, no data, no wifi, no nothing. Still phone wakes up in the night for unkown reason and 80% of battery is taken by mysterious Android OS process.
Click to expand...
Click to collapse
That is a problem with the 2.3.3 firmware mate. Best switch to 2.3.4 ASAP!
To answer your question, yes, I'm hugely impressed by the battery life.
Here's my latest and I'm still at 15%. I'm bone stock on KF3 with all the syncs set to every three hours and using Exchange push.
People blame everything (Wi-Fi Sharing, AOS) for their issues except what they do to their individual phone. Network signal strength plays a big role so does the individual router used for Wi-Fi access. But outside of that there's no other explanation other than individual configuration when identical phone's from the factory get such different results.
I don't participate in battery threads because they're pointless. Dozens of different people using the phone differently with different apps and settings on different carriers all talk in circles when there's no common basis for a legitimate discussion.
I'd call 3% overnight something impressive.
I'll try it out tonight.
I'm running 2.3.3 (No updates avaliable here in Brazil) and i'm not about to root it now. I'm getting a generic 7" tablet to mess around and learn how to do it properly.
So i'll be running minimalistic UI, Snowstorm, Battery Monitor Widget Pro on the desktop, with 2 screens.
HSPA+, bluetooth and wifi disabled.
Let's see how it turns out tomorow morning.
One thing i wanted was to flash in Samsung's oficial fw for Brazil, mine's a carrier customized one, and that's sort of pissing me off since i wanted to uninstall 75% of the garbage Claro has installed here.
jwonga said:
That is a problem with the 2.3.3 firmware mate. Best switch to 2.3.4 ASAP!
Click to expand...
Click to collapse
I'm using 2.3.3 at the moment and don't seem to have this problem at all?
BarryH_GEG said:
I don't participate in battery threads because they're pointless. Dozens of different people using the phone differently with different apps and settings on different carriers all talk in circles when there's no common basis for a legitimate discussion.
Click to expand...
Click to collapse
I agree with you BarryH... having put the great battery stats in the first post, I wouldn't expect anywhere near that sort of level had I been playing with the phone or I had a thousand apps that run constantly in the background.
Having said that, it seems that there are the people who do have legitimate problems and then there are the people who simply have unrealistic expections of the battery in such a powerful phone. Kinda like buying a big truck expecting it to run on the same amount of fuel as a little car.
Unrealbr said:
I'd call 3% overnight something impressive.
I'll try it out tonight.
I'm running 2.3.3 (No updates avaliable here in Brazil) and i'm not about to root it now. I'm getting a generic 7" tablet to mess around and learn how to do it properly.
Click to expand...
Click to collapse
Let me know how you go Unreal... I saw on a thread a couple of weeks ago (not sure exactly which one now because there's so many of these "bad battery" threads) that someone had said that their phone lasted more than three days with minimal use.. and noone believed him! lol
How strange, I was about to make a similar thread. I had just gotten 3 and a half days out of my battery earlier tonight, no connection to charger since friday night. Minimal use of course, few phone calls and general tinkering, but still impressed with the standby. It was at 1% battery left so time to charge her up again. I charged my phone till the 100% alert came up, then charged it for another 45 minutes as I heard it stops it dropping immediately to 95% as some others have experienced. I've experienced similar too.
So after unplugging it, I pressed the power button to turn the screen off and haven't touched the phone till just now, about 6 and a half hours later. I pressed the power button and battery widget shows me 98% on the battery. If i was to leave the phone completely in standby and not use it, at about 1% drain per 3 and a quarter hours, that's about 13 and a half days standby!
I'm on 2.3.3 btw.
2-3% overnight drain is along the lines of what I get with KE2 and KF3. Data off, 2G. I get about 20-30% of drain a day, 30 mins usage, 30 mins talk.
I get great battery life on mine, although I have not made a valid experiment using quatitative data
Hopefully, this will be the NEW TREND for all the Android Gingerbread dual core phones.
Check this out!
Neo3D said:
Hopefully, this will be the NEW TREND for all the Android Gingerbread dual core phones.
Check this out!
Click to expand...
Click to collapse
We have one guy who went five days supposedly. The majority of posts in that thread are just like ours, a combination of moaning and pleased. It all comes down to how the phone is used and what's loaded on it.
Sent from my GT-I9100 using XDA Premium App
Im very happy with battery life. Froze a couple of apps and I was good to go.
First phone I've had that didn't need to.be flashed on a daily basis.
I think anyone that's needs more than a day from a single charge needs a blackberry or a home to charge daily.
Sent from my GT-I9100 using XDA App
I have owned a lot of androids and my sgs2 has the best battery life.
I guess you think it's ok, probably because coming from another android phone, it is.
For me is a pain, every half day have to think about charging, my whole usage of this phone although brilliant, has been taken over by thoughts of how I'm going to next get it charged aposed to what I want to do with my phone.
Something I didn't expect was just how much this phone discharges whilst playing music with the screen off.
Sent from my GT-I9100 using Tapatalk
Im not impressed, it just met my expectation coming from an SGS1, but the first one impressed me so ergo Im also impressed on the SGS2
I have had this phone since pretty much near release date. I have been and still am very impressed,by the battery life.
I'm currently on KG1 2.3.4, but since before this past Saturday I was always on 2.3.3 (KE2). Even on 2.3.3 with the AOS bug I was still very happy with battery life.
Now with KG2 out, I'm sure ill be even way more impressed.
I love this phone, and I have been a religous iphone user previously too!
Sent from my GT-I9100 using XDA Premium App
On my phone with 3500mAh battery. With yellow arrows, the behaivour during night.
KG1: during 4 days ( no drain at all)
KG2: during one night
I must agree, this is my 3rd Android phone (out of a total of 37 phones since 1990) and it's by far the best battery of any smart phone.
My best battery usage is 3 days 13 hours with 25% battery left. That was with wifi on all the time, over an hour of screen time (I was working at home, so no need to play with the phone) and over an hour of phone calls. I'm sure it would have reached 5 days. BTW, I'm running 5 pages of widgets, firefiles wallpaper and GMail is updating all the time.
During the 3 days time I switched off 3G as this is the biggest battery drainer I have seen. I live in a 40 floor tower which is made of thick concrete and the 3G signal in my home office is terrible, the phone is constantly hunting for 3G. When I'm at home, I don't need 3G as I'm using Wifi.

[Q] Fishy battery life

Hello all,
I bought the Atrix around 6 months ago and I have always had the same problem I'm about to describe. First I should mention that I used to have a stock rom and stock radio (77.15) until a couple of weeks ago when I flashed Cyanogenmod and radio 77.30p, yet the problem is present in both configurations.
My problem is as follows: my battery life is mediocre. Without using the phone very heavly, I get around 7-8 hours until it shuts off. Since day one I've tried many different fixes to see if the battery improved without success. Now here's the fishy part: for whatever reason, every time I make a full wipe (when I was using stock I did it from the "reset to factory defaults" option, now I do a full wipe on recovery) the battery lasts an insanely amount of time, something like 24 hours or more.
Here's how it usually works for me: I do the wipe, I boot my phone and configure my accounts, the phone syncs and installs the apps I usually use. Like I said, that day the battery will last forever, last time I've tried this I reached around 31 hours before I plugged the phone back on, and it was around 17% still. Now, the next day, without installing any new app or using the phone for nothing different, I go right back to the mediocre battery life. For example, it just went from full charge to 88% for just 10 minutes of browsing the net on wifi, not even using 3G.
Like I said, this happened with stock ROM and now with Cyanogenmod regardless of the radio I'm using. I have calibrated the battery a million times, I've tried with Watchdog which didn't show nothing, the same with Better Battery Stats. I really need some suggestions on what to try because it irritates me that the battery is dropping so much with such a light use.
Thanks!
I'm getting also quite short battery life with CM7. I'm wondering what the reason could be. It gets down with 15% for just 5 hours without any phone calls. I have just whatsapp and email checking every hour. No other resource hungry applications. With the stock ROM and the same usage I'm getting around three days ~ 72 hours.
Well in my case it's the same but with both stock and others roms. I suspect it's a software problem because I get normal battery life when I do a full wipe.
Did you try to revert back to unlocked bootloader.
What I found strange is that somehow the indicator doesn't show the ratio mAhercentage. On 85% battery the calibration battery shows charge 4030 mAh which is not 15% less than the full charge of 4200 mAh.
Well actually this problem has existed from before I unlocked the bootloader so I don't think that's the problem. And in my case the mah percentage is correct. It's like if somethings draining the battery that I can't find. Maybe is a problem with my carrier?
If the coverage is poor where you live then it is possible to get lower battery life than expected. Another solution is to revisit the application you use, try also to do a full wipe including formatting the internal memory card.
Go through this process: http://forum.xda-developers.com/showthread.php?t=1198333
You'll be good to go after that. Check also BetterBatteryStats here in xda, will show you what processes eat the battery.
Thanks but I've tried that when using the stock rom and it didn't help me. I think that solution is for a different problem as it's mainly to display the correct mah percentage, which is not exactly my problem. Also, CM7 already includes juggernaut fix.
Radiobuzz said:
Thanks but I've tried that when using the stock rom and it didn't help me. I think that solution is for a different problem as it's mainly to display the correct mah percentage, which is not exactly my problem. Also, CM7 already includes juggernaut fix.
Click to expand...
Click to collapse
Have you tried a different radio?
Yeah, like I said I had 77.15 at first and now I'm using 77.30
There's more radio's, check in General.
Ok, I flashed 77.36p and there was an improvement, I've unplugged the phone around 13 hours ago and I'm at 25%. Would you consider a good battery life for a light use? It's getting better but I saw many people crossing the 24 hour mark on their phones. Are there any other radio to try other than 77.15, .30 and .36 that would be worth it?
Do a full wipe in Fastboot & install Nottach's DarkSide and leave it with the stock kernel. I'm at 77% with 1hr 40 minutes screen time & 17,5 hrs standby..
P. S. I'm using the N_01.100.00R radio. Am in Germany, though on an at&t phone. Best radio so far.
Anywhere from 13-20 hours is fine but keep in mind it's all dependent on what's on your phone. If u have a bunch of apps pulling data from the internet or something ....I mean its all dependent on your phone setup.
Sent from my MB860 using xda premium
Vangelis13 said:
Do a full wipe in Fastboot & install Nottach's DarkSide and leave it with the stock kernel. I'm at 77% with 1hr 40 minutes screen time & 17,5 hrs standby..
P. S. I'm using the N_01.100.00R radio. Am in Germany, though on an at&t phone. Best radio so far.
Click to expand...
Click to collapse
Well, for now I'll stick with Cyanogenmod for a while because I really like it, but I have flashed the radio you've mentioned, we'll see how it behaves. Thanks!

Having some issues, freezing and sudden battery loss

Basically, I installed cm9 RC1, and everything was working great.
Interface and all my apps were working super smooth.
I was getting 4 hours of straight use on a single charge! I was super impressed.
Yesterday, the phone froze out of nowhere. Couldn't get any response at all, had to pull the battery. The cpu was pretty warm too. It has gotten warm through normal use before on other roms, but that had disappeared when I flashed this one.
After rebooting, it tells me the battery is less than 4%, which is very strange since before freezing it was more like 20% full.
Now after this happened, I'm getting literally half the time on each charge. Instead of 4 hours with 15% left I'm getting 2.5 hours and 4% warnings telling me I need to charge.
Any idea as to what is going on?
I'm using betterbatterystats, and according to it, my deep sleep mode is working properly. The apps I use are showing the same kind of usage they did before. I can't figure out what the hell is going on here.
Sent from a galaxy far, far away
Questions belong to Q&A.
Do a full wipe. That's the best solution. After that, if it happens again, report here.
captain67 said:
Basically, I installed cm9 RC1, and everything was working great.
Interface and all my apps were working super smooth.
I was getting 4 hours of straight use on a single charge! I was super impressed.
Yesterday, the phone froze out of nowhere. Couldn't get any response at all, had to pull the battery. The cpu was pretty warm too. It has gotten warm through normal use before on other roms, but that had disappeared when I flashed this one.
After rebooting, it tells me the battery is less than 4%, which is very strange since before freezing it was more like 20% full.
Now after this happened, I'm getting literally half the time on each charge. Instead of 4 hours with 15% left I'm getting 2.5 hours and 4% warnings telling me I need to charge.
Any idea as to what is going on?
I'm using betterbatterystats, and according to it, my deep sleep mode is working properly. The apps I use are showing the same kind of usage they did before. I can't figure out what the hell is going on here.
Sent from a galaxy far, far away
Click to expand...
Click to collapse
as stated by the guy above, do full wipe/data factory reset, about the 20>4% battery can be due to when the phone has been forced turned of or anything, happens to me when i get the same problem (almost)
Did full wipe last night. Battery life is still half and the cpu is getting very warm just while web browsing.
Sent from a galaxy far, far away
Voltage problems ... just like mine. Freezing, overheating. Self rebooting too?
Sent from my Sgs2 via Xda Premium. Helped? Click thanks button!
Only completely frozen the one time. I did get a random lag spike earlier though. Haven't had any random rebooting that I'm aware of, but it could be doing it when I'm not looking..
Sent from a galaxy far, far away
If you have booting sound notification you would know. If this happend only one time, then its hard to judge for me - my phone was living its own, mad, life constantly. ( freezes, reboots , sound looping ) And by this in the same time was destroying mine
Hope somebody else will be able to tell you more.
Sent from my Sgs2 via Xda Premium. Helped? Click thanks button!

[Q] To those still running ICS: How fast do you lose the first 10%?

I've been spending a few days going between ICS and the latest leaks. I've frozen all the stuff I don't use on both and turned off Google Now on JB, and used Media Scan Root to make sure that media scanner isn't running unnecessarily.
The thing I'm still not entirely sure about is whether my battery life is REALLY better on ICS or if I just think it might be. It does sort of appear that I lose the battery slower, particularly the first 10% from a full charge while running ICS.
JB still seems to drain quicker, but I don't have any hard data to support it. Just observation/anecdotal info from my limited experience between the two platform variants.
The only thing I have noticed is that at night, I put my phone in Airplane mode and with ICS I always wake up with 100% still there. In JB, I always wake up with 99% or 98%.
I've often heard that the first 10% drains quicker than the rest, but I've sort of noticed quicker drains beyond just the initial 10% as well with JB.
Anyone have any thoughts on this? Is it something that we'll just have to live with to enjoy JB even after the official releases are made? The performance is better, but you don't get something for nothing, it seems.
Variable between a few hours and a day .
jje
JJEgan said:
Variable between a few hours and a day .
jje
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Click to collapse
Yeah, I mean, I realize that there are so many variables with network, etc. but I'm sometimes astonished that in the same location, I'll go from 100% charge to 90% in a matter of 10-15 minutes, let's say, simply by using my data connection, which I normally keep off when I'm not using it. I also don't have background data syncing accounts or pushing email, etc. I just do it manually when I need to check. I prefer it that way.
I don't see the same thing in ICS at this point. I've spent a few days at a time just checking it out, but like I said, I've not compiled any data. Just anecdotal at this point.
Thanks for any and all feedback on this. I realize that battery threads are a dime a dozen around here, but I think that the JB transition is a major one that just MIGHT mean we'd lose some more battery. Hope it all works out by the final release, and LI7 is rock-solid and the leaks are getting better.
1 hours if i'm not mistaken.
nhariamine said:
1 hours if i'm not mistaken.
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But, is that one hour of just having H data on, for example, or actually using the web connection to surf?
I'm just trying to get a feel for how it is for others.
Thanks.
Just an update...
Been running LI7 since it dropped. In the last three hours, I've had the phone on but screen off and I've lost 2% with data switched off (phone radio on, but data off).
Is that about normal?
Seems to me that it's more than I'm used to seeing in ICS so I'm trying to get a perspective on it.
I lost 12 percent in 14 hours with no wifi no data connection and 20 min of calliing.
I am on stock ICS and have been since I bought the phone a month ago. I haven't flashed anything but CF Root.
I charged with the phone on overnight. I took it off charge when I woke up and am now at 90% after 3h 26m with wifi on and screen on for 38 minutes. I'm very happy with that consumption.
One thing I find is that it takes some time for my battery to drop from 100% to 99%. This morning it took 20 minutes of browsing, facebook, and flipboard to drop that first 1%.

2 Questions.

So I am currently running Carbon Rom on my phone. Whenever I lock my phone and I unlock it, in the notifications, it says that its preparing my storage everytime. But now, it says that my SD card is blank or unsupported but it works perfectly fine my computer. I've had this problem for about 2 months now. I've already tried changing the rom and clearing the cache. Also, I tried to take out my SD and put it back in but not luck. So please help on that. Also, I was just wondering, so as you already know, I'm running the Carbon Rom on my phone. It's a great rom but the battery life sucks. I would like a rom similar to Carbon that is 4.3 or 4.2 that is very smooth and also has great battery life. I tend to use my phone a lot, and I know that battery life on androids suck but some other roms had much better battery life on them, but I didn't really like them much. Thanks for all your help!
Played with Carbon and other roms, none are close to the battery life of Shostock roms (I've run 2,3, currently 4). And SS is about tops for smoothness and stability. Some of these roms are so much worse on battery life that it's pointless to use them if you actually "use" your phone throughout the day, unless you have it plugged in everywhere you go.
Far as the SD card not sure there, did it do it on stock or any other rom?
surf1 said:
Played with Carbon and other roms, none are close to the battery life of Shostock roms (I've run 2,3, currently 4). And SS is about tops for smoothness and stability. Some of these roms are so much worse on battery life that it's pointless to use them if you actually "use" your phone throughout the day, unless you have it plugged in everywhere you go.
Far as the SD card not sure there, did it do it on stock or any other rom?
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So I switched to Shostock 4.0. It's pretty smooth but my battery life isn't so hot. Maybe I just have to give it a day or two. And the problem isn't happening now. But usually, the problems comes after about a week of using a rom. Also, sometimes, there's random reboots.
gainstatom said:
So I switched to Shostock 4.0. It's pretty smooth but my battery life isn't so hot. Maybe I just have to give it a day or two. And the problem isn't happening now. But usually, the problems comes after about a week of using a rom. Also, sometimes, there's random reboots.
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Click to collapse
I do know Sho roms are always tops for battery life of the i777 roms. Never had random reboots or anything on any of the Sho versions. There could be something else wrong with the phone, rogue apps, something killing on gps power, battery gone bad. These phones are two years old now, and a lot of people have had the battery itself go bad before that time, I just replaced mine like a month ago. Just randomly started getting worse and worse phone life over the past couple months.
I keep GPS on all the time, and sync etc, only thing I adjust is WiFi set to stay on in sleep mode only when plugged in (Android has always had that battery sapping wifi bug). You should try running stock though for maybe a week or two and see if the issues occur, if they do, it could be hardware issue.
gainstatom said:
So I switched to Shostock 4.0. It's pretty smooth but my battery life isn't so hot. Maybe I just have to give it a day or two. And the problem isn't happening now. But usually, the problems comes after about a week of using a rom. Also, sometimes, there's random reboots.
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Click to collapse
Random reboots are usually due to a kernel issue, rather than a ROM issue.
surf1 said:
Some of these roms are so much worse on battery life that it's pointless to use them if you actually "use" your phone throughout the day, unless you have it plugged in everywhere you go.
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Click to collapse
Everyone will get different results, period. I get great battery life with Carbon, drop maybe 40-50% over the course of a day. Much of the building I work in, is a black hole when it comes to cell coverage, so I'm happy with my results.
T
Sent from my SGH-I777 using Tapatalk 2
tedkunich said:
Everyone will get different results, period. I get great battery life with Carbon, drop maybe 40-50% over the course of a day. Much of the building I work in, is a black hole when it comes to cell coverage, so I'm happy with my results.
T
Sent from my SGH-I777 using Tapatalk 2
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So your not using your phone since there's no cell coverage? That's the thing I'm on my phone all day for work/personal, ton of calls, emails, text, browsing etc, used a bunch of roms but always come back to Sho on the i777. Have two employees with i777s running Sho too, same results, none of the roms they used had the standby and in use efficiency. Not to say the roms are bad, Carbon is cool, just wish they all had better life.
I will say if you notice a big difference like I did over last few months, time to replace the battery. Sammy shipped crap batteries in these phones, and it's a known issue that majority fail before two years are up. Mine did and my employees did lol
surf1 said:
I do know Sho roms are always tops for battery life of the i777 roms. Never had random reboots or anything on any of the Sho versions. There could be something else wrong with the phone, rogue apps, something killing on gps power, battery gone bad. These phones are two years old now, and a lot of people have had the battery itself go bad before that time, I just replaced mine like a month ago. Just randomly started getting worse and worse phone life over the past couple months.
I keep GPS on all the time, and sync etc, only thing I adjust is WiFi set to stay on in sleep mode only when plugged in (Android has always had that battery sapping wifi bug). You should try running stock though for maybe a week or two and see if the issues occur, if they do, it could be hardware issue.
Click to expand...
Click to collapse
Yeah, so, I switched back to jeboo kernel but the battery life sucks! I'm going to wait a day or two and see if the problem goes away. Also, on this rom, I also sometimes when I unlock my phone, it always says preparing SD card. Its annoying.
gainstatom said:
Yeah, so, I switched back to jeboo kernel but the battery life sucks! I'm going to wait a day or two and see if the problem goes away. Also, on this rom, I also sometimes when I unlock my phone, it always says preparing SD card. Its annoying.
Click to expand...
Click to collapse
If your having these same issues across different roms like you are, run stock for like a week at least and see what happens. Not sure what you mean by switched to Jeboo as Sho4 comes stock with Jeboo tweaked for it.
Also if battery life is sucking that bad especially on roms known for battery life, 99% sure its time to replace the battery. Samsung shipped crap batteries in this phone that frequently die between 1.5-2 years. I've replaced mine, two employees have, few other i777 friends have etc.
How long have you been owned the phone's battery? The above poster mentioned battery usage which (if you're still rocking a day 1 release S2) the battery is at the 2 year mark. Might be time to get a replacement battery.

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