Develop Bugs

[KERNEL] Stock KL1 kernel ODIN flashable

I have managed to make a Stock KL1 Odin flashable kernel in case anyone needs it. Please hit the thanks button if you found it useful.
I used Bubby's KID kernel as a guide and many thanks go to him
Usual discalimers apply - I'm not responsible for anything that goes wrong

shehrammajid said:
Can someone make a stock flashable kl1 kernel? I think it would be beneficial to everyone....there used to be a thread for an unlocked stock kernel that u could Oc or UV if u wanted, but search brings up nothing.... the only stock kernel available is by bubby and is the old KID kernel
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
I'm stupid....disregard

Ya that needs relabeled I knew that was gonna confuse people.
Sent from my SGH-T989 using xda premium

Relabeled
Sent from my SGH-T989 using XDA App

bump. Managed to make an Odin flashable kernel. Tested on my phone and everything works great. Please hit thanks if you find it useful

shehrammajid said:
bump. Managed to make an Odin flashable kernel. Tested on my phone and everything works great. Please hit thanks if you find it useful
Click to expand...
Click to collapse
Can we over clock it or under? And how much battery life is it going?
Sent from my SAMSUNG-SGH-T989 using xda premium

MT4GH said:
Can we over clock it or under? And how much battery life is it going?
Sent from my SAMSUNG-SGH-T989 using xda premium
Click to expand...
Click to collapse
No oc or uving, this is complete stock KL1 kernel they way it came with the phone. I actually had great battery life (about 17 hours) on stock, but I switched to other custom kernels and didnt have so great battery life. So, I was looking for a stock kernel and in the end made this one and flashed today. So battery life should be like stock.

Quick Q, I can ODIN this over Juggernaut 4.1? Without a wipe/reset?

gamefreakgcb said:
Quick Q, I can flash this over Juggernaut 4.1? Without a wipe/reset?
Click to expand...
Click to collapse
Yes. You should be able to flash this just like any other kernel with the exception. Of this being flashed via Odin
Sent from my SGH-T989 using XDA App

shehrammajid said:
Yes. You should be able to flash this just like any other kernel with the exception. Of this being flashed via Odin
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
Thanks. I am getting ****ty battery life also. I have tried everything, faux's, bullet, synergy's different versions, Gideon's UV scripts, underclocking, undervolting, with complete wipe, different roms, you name it. I still I lose 20+% battery per hour while I read on my phone. 10-11% if its idle. Completely ridiculous. Just tonight I thought of trying the stock kernel. Plus anytime my phone is awake, the top portion of my phone gets hot. I'm hoping its a kernel issue.

gamefreakgcb said:
Thanks. I am getting ****ty battery life also. I have tried everything, faux's, bullet, synergy's different versions, Gideon's UV scripts, underclocking, undervolting, with complete wipe, different roms, you name it. I still I lose 20+% battery per hour while I read on my phone. 10-11% if its idle. Completely ridiculous. Just tonight I thought of trying the stock kernel. Plus anytime my phone is awake, the top portion of my phone gets hot. I'm hoping its a kernel issue.
Click to expand...
Click to collapse
That sounds really bad. I was getting horrible battery life on other kernels but not that bad (i got around an average of 7-8 hours on custom kernels). However, one thing about stock kernel is that once you flash it, you have to give it 2-3 days -sometimes more- to get full capacity battery life (around 17 hours heavy use for me).

I'll test it out. My only concern was that the phone would warm up for no reason. The only time my phone can save battery is in flight mode. 7 hours in flight mode take about 5-8% battery. So the issue is most likely radio/kernel related IMO. Even having sync/data off didn't help much. I also average 7-8 hours. It's just that when I have the phone on to a dark screen with white text on it (opera mini, it has no fancy stuff, good reader browser) I would lose at least 15% in about 45 minutes. This is with no music, no data activity at the lowest brightness setting.

So this is my battery life after the first day. I would say today was lots of heavy use for me. Usually around this time im charging from dead, but with this kernel I still have 30 percent left to go. So about 15-16 hours on one charge with heavy use .I've tried all the custom kernels and this is the best I've ever gotten....

This one helped lots. I unplugged my phone at 1AM (100% charged) and then put it in flight mode. At 7AM I turned off flight mode and had used up 1% in 6 hours. From then till 3:30 I went down to 50%.

shehrammajid,
Thanks for the stock kernel. I am also trying to learn how to build a stock kernel. I have made a post here: http://forum.xda-developers.com/showthread.php?p=22845175
Can you please take a look at my steps and see where I am going wrong? Also can you post the guide you followed by bubby323?
Thanks.

ics and battery life

At first my girlfriend had her Nexus S updated to ics and immediately we noticed a huge difference in how long her battery lasted and she is the furthest thing from a heavy user.
So when I heard that ics ws being released for our phone my first thought was i hope that what she experienced won't be what i do as we have a better phone right?
Well I am sad to say on a stock but rooted rom I experience the same lack of battery life as her.
Now I am no beginner to Android and have changed all sorts of settings available and nothing syncs on its own and when I unplug my phone from charging in the morning I will need to plug my phone in at night before bed as my phone will be completely dead.
I have to say I am very disappointed in the battery life of thr the stock rom and hope some good kernels make it out to help.
Sent from my SGH-T989D using XDA

Have you tried to find out which app/process is draining your battery? Better Battery Stats can help you identify what is using up your battery.
I had a big keep awake problem when i first installed stock ICS on my T989D. I did a full wipe of the phone and formatted my internal SD card (after backing things up of course), reinstall the same stock ICS and everything works great now. Battery life is about the same as before (stock GB w/ Synergy kernel), which is about 30 hours with moderate use.

Try CM 9. I get almost 2 days of battery life.
Sent from my SAMSUNG-SGH-T989 using xda premium

I've never had better battery life personally.
Sent from my SGH-T989D using Tapatalk 2

Though I am now on AOKP, I had great battery life on stock ICS as well. But, everything is subjective. How many email accounts are being synced? Do you have Facebook / Twitter / G+ updating every hour? Do you have news feeds continuously updating as well?
I have to agree with the poster above. Get Better Battery Stats and find the culprit draining your battery and work from there.

biggest thing draining the battery is the screen.
you can literally watch the battery usage drop 10-15% in a period of 10 to 15 minutes which is absurd when its set to low.
Sent from my SGH-T989D using XDA

Wait for kernel development. Its underway as we speak. It will make a significant difference.
Some battery saving tips:
- use juicedefender and set it to aggressive mode.
- use romtoolbox or other programs to underclock cpu frequency.
- also try using telus stock ics. Very good battery life.
Sent from my SGH-T989D using XDA

I have a brand new T989D (I'm new to Android, former iPhone user) and got the ICS upgrade the day I got it (9 days ago). Battery life is terrible, I'm lucky if I get 10 hours of moderate usage. The phone also tends to run very, very hot. Sometimes apps freeze and all I can do is either wait or, in some cases, remove the battery to reboot.
I'm open to any tips that will get this fixed! I haven't rooted yet (no time). I think I will try those wipe tools and reflash the stock ICS ROM.
First post btw - glad to have joined XDA!

Rooting takes 5 seconds. Follow the sticky. Use odin.
Run a custom rom.
Sent from my HTC Vision using xda premium

Android_Monsters said:
Rooting takes 5 seconds. Follow the sticky. Use odin.
Run a custom rom.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Thanks, although a lot of howtos seem to be for GB since ICS only landed 9 days ago. Also there's a lot of conflicting information, so I prefer this one:
http : // galaxys2root.com/t-mobile-galaxy-s2/how-to-root-icsgb-on-t-mobile-galaxy-s2-sgh-t989/
Aaaannnd... rooted! \o/

anomy13 said:
Wait for kernel development. Its underway as we speak. It will make a significant difference.
Some battery saving tips:
- use juicedefender and set it to aggressive mode.
- use romtoolbox or other programs to underclock cpu frequency.
- also try using telus stock ics. Very good battery life.
Sent from my SGH-T989D using XDA
Click to expand...
Click to collapse
phone is a telus phone so its already using that rom.
setcpu us setup already but thinking perhaps to undervolt
Sent from my SGH-T989D using XDA

Stock, not rooted, my battery life is great. Something is using your battery up, and flashing some exotic kernel isn't going to change that. The stock kernel works fine. You'll want to find the root of the problem. Keep a real-time (or 1-5s interval anyway) eye on the phone's current (mA) usage, and when it's high for no apparent reason, you'll know that whatever is sucking your battery is doing it right then. That should help you characterize the problem. I've noticed when my WCDMA/GSM radio signal sucks, so does the battery life, so I either turn off the radio or switch to GSM only when I'm in that area. If your display is what's eating your battery, well a kernel can't stop that. Turn the brightness down, leave it on auto-brightness, or just deal with it if you need the display on all the time. But if tweaking and modding makes you happy, by all means...

firebane said:
biggest thing draining the battery is the screen.
you can literally watch the battery usage drop 10-15% in a period of 10 to 15 minutes which is absurd when its set to low.
Sent from my SGH-T989D using XDA
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Click to collapse
I have the same complaint. The "screen" battery usage is just unacceptable, especially compared to GB. My phone has been draining from a full charge for ~4.5 hours and my screen usage is 70% and battery is down to 65% with hardly 10 minutes of screen-on time.

I use an app called autostarts and you basically enable/disable apps that start running when certain events happen (phone startup, wifi being turned on, incoming call/sms/mms, other apps turning on, etc.). Just make sure you do your homework so you dont disable something critical. Hopefully this app works on ICS. You'll be surprised what different events make certain apps turn on automaticly. Screen, data/wifi, gps and bluetooth are the biggest battery drainers. No matter what Rom you are on if you don't keep control of those items your battery will drain fast. Keep ur screen on auto, let it go off @ 15 seconds ( you have to be pretty used to your phone for that setting not to annoy you), turn OFF your data or wifi when not in use. With bluetooth and gps...well u know that when you use them your battery is gonna drain faster than normal...just keep that in mind. Its all pretty much common sense.
I'm not going to tell you how much battery time I get cuz its nonsense. There are times my phone lasts till the next day and others Im charging it by sundown. Then again Im still on Juggs n Darkside kernel and Im gonna wait a bit still b4 I make the switch. Also don't go by what other people say on battery life cuz if you might not get the same results on that ROM. Everyone of our devices is unique and acts different. Everyone user uses their phone different. You can't define "light, moderate, heavy" use so don't go by that either.
Sent from my Blutiful SGSII w/Juggs.

Duel core vs single core
Larger brighter screen
Processor is clocked higher
Radio is connected to hspa+ network
Tw vs Samsung.
These things make a difference
Sent from my Galaxy Nexus using xda premium

After upgrading to ICS stock unrooted battery life sucked (5-6hrs). I did the whole remove battery, factory reset and still sucked.
Broke down rooted (still stock), downloaded batterycalibration from play, followed the instructions. Easily get over 24hrs before having to charge again. and when I say easily, I mean I still have over 25% left.

Get a gnex extended....maybe a bad battery
Sent from my SGH-T989 using xda premium

AOKP build 40, latest eugene373 streamline kernel. I went 9 hours earlier it earlier and it was still at 70% You will see a difference!!
Sent from AOKP Goodness :-D

mrrobc97 said:
Im not going to tell you how much battery time I get cuz its nonsense. .........Everyone user uses their phone different. You can't define "light, moderate, heavy" use so don't go by that either.
Click to expand...
Click to collapse
Bingo. Vastly different battery life between ROM's is generally BS. Every once in a great while one of these threads has merit but typically someone saying ROM X had "Killer" battery life is clueless and drinking the koolaid. Then a placebo effect takes place. And definitely someones "Heavy" use is subjective. If someone says they get a day out of an android phone they are not heavy users by my definition. It doesn't happen with heavy use. Perhaps the Razr Maxx or another phone with a very large battery but I've had 5 Android phones. If I get past noon it's because I am not using my phone that much and forget about a full day. It's never happened in the 4 years I've used google OS phones. Never.

jonjon68 said:
Bingo. Vastly different battery life between ROM's is generally BS. Every once in a great while one of these threads has merit but typically someone saying ROM X had "Killer" battery life is clueless and drinking the koolaid. Then a placebo effect takes place. And definitely someones "Heavy" use is subjective. If someone says they get a day out of an android phone they are not heavy users by my definition. It doesn't happen with heavy use. Perhaps the Razr Maxx or another phone with a very large battery but I've had 5 Android phones. If I get past noon it's because I am not using my phone that much and forget about a full day. It's never happened in the 4 years I've used google OS phones. Never.
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Click to collapse
Yes exactly, I hate when people post screenshots of their phone getting 24+ hours, I'm there thinking "well obviously they don't use their phone alot". There is no way in hell i could get 24 hours no matter what rom/kernal I use. Im just happy when my phone can make it till I get home at night
Sent from Flip's SGS2

My guide for 18 hours battery life on Jelly Bean

I am here to share my experience to get 18 (around 5-8 hours screen time depend on your usage) hours normal usage, browsing chatting, facebook and calls.
2 days if you are not touching your phone at all, standby.
follow my guide, I think it's all about the Kernel but I shared the rom I used too just in case.
this guide is for GSM, might work on others just download the proper rom and kernel.
Optional, you can underclock to 1ghz but I didn't and got 18 means more if you underclock it.
http://nexus-hacks.blogspot.com/2012/08/how-to-increase-galaxy-nexus-battery.html

How many screen hours?
Sent from my GT-P3113 using xda app-developers app

Which Trinity kernel and AndroidMe rom version have you been using?
TNP1536-307-JB-STABLE35
TNP1420-307-JB-STABLE35
TNP1344-307-JB-STABLE35. Do you think this one would be a good choice to save battery?
Thanks.

wissamidrissi said:
I am here to share my experience to get 18 hours normal usage, browsing chatting, facebook and calls.
2 days if you are not touching your phone at all, standby.
follow my guide, I think it's all about the Kernel but I shared the rom I used too just in case.
this guide is for GSM, might work on others just download the proper rom and kernel.
Optional, you can undervolt to 1ghz but I didn't and got 18 means more if you undervolt.
http://nexus-hacks.blogspot.com/2012/08/how-to-increase-galaxy-nexus-battery.html
Click to expand...
Click to collapse
point 1: when you go to 1GHz , it's called underclocking. undervolting is when you lower the voltage for the corresponding processor frequencies.
point 2: 18h , but what about screen ON ? how much is the "normal usage" equivalent to, in terms of screen ON and the stuff that you're running on your phone.
it's nice to see you trying to contribute and thumbs up for the effort, and i really don't want to sound like an a-hole, but this is not a guide. flashing a custom rom + kernel, and letting the battery go through a few cycles cannot be considered as a guide with battery saving tips. Cheers mate.

shinydesert said:
which trinity kernel and androidme rom version have you been using?
Tnp1536-307-jb-stable35
tnp1420-307-jb-stable35
tnp1344-307-jb-stable35. Do you think this one would be a good choice to save battery?
Thanks.
Click to expand...
Click to collapse
tnp1536-307-jb-stable35
rayiskon said:
point 1: when you go to 1GHz , it's called underclocking. undervolting is when you lower the voltage for the corresponding processor frequencies.
point 2: 18h , but what about screen ON ? how much is the "normal usage" equivalent to, in terms of screen ON and the stuff that you're running on your phone.
it's nice to see you trying to contribute and thumbs up for the effort, and i really don't want to sound like an a-hole, but this is not a guide. flashing a custom rom + kernel, and letting the battery go through a few cycles cannot be considered as a guide with battery saving tips. Cheers mate.
Click to expand...
Click to collapse
You are right, but I learned now ^^
well around 8 hours normal usage of screen time (screen awake), and when I am on a phone call and the screen is off it toke 1% every 10mins
pardon my English

delete this reply cuz I don't find how.

Yah I hate to be that guy but where's the guide? Everyone uses their phone different. You should at least show your battery usage screen shot so we can see screen time etc.

What? Are you telling me that you get 8hrs of screen on time? Is this trolling or just a language barrier?
wissamidrissi said:
tnp1536-307-jb-stable35
You are right, but I learned now ^^
well around 8 hours normal usage of screen time (screen awake), and when I am on a phone call and the screen is off it toke 1% every 10mins
pardon my English
Click to expand...
Click to collapse

lightsout said:
Yah I hate to be that guy but where's the guide? Everyone uses their phone different. You should at least show your battery usage screen shot so we can see screen time etc.
Click to expand...
Click to collapse
sorry, I wiped stats but you can study this.
just look at my charge time compared to the times I am using phone, and because it last longer I don't care when its red and low, I was in 5% from 9pm to 11pm chatting from time to time and facebook, and btw my wifi is always on.
and pardon me I am new Xd I am just sharing something not an expert or something but next time I will make sure : it's called underclocking <- I though both are same, and post screenshot and screen on time
EDIT: I think I should charge it to 100% and make it drain then share pics with you guys, that's the proper way for screenshot right Xd? cuz mine looks like a mess XD

My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium

El Daddy said:
My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Nice XD but I love messing around my phone stock is just... normal XD

Your phone was plugged in multiple times throughout your screenshots. So yes, you should redo screen shots from 100% and include display on time.
It doesn't really matter though, as no one will see your same results unless they use their phone the exact same way.
And under clocking is unnecessary on the nexus, it doesn't spend hardly any time at 1200mhz anyway. I use mine for a lot of game play and still don't spend much time over 691mhz (Trinity kernel). So if my phone decides it does need to ramp up to 1190mhz to remain buttery smooth I'm not going to interfere.
Sent from my SGH-T959V using xda premium

Nice. Will check this out.. I run my phone down pretty quick these days heh

I'm not understanding why you prefer 1.5 trinity kernel and 307 gpu. What benefit are you seeing versus the other trinity kernels with higher gpu and lower overclock limits? Are you running your phone at 1.5?
Sent from my Galaxy Nexus using Tapatalk 2

El Daddy said:
My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Same here. I have no problem getting 18 hours out of my stock battery using the stock ROM and kernel, including just shy of 6 hours of screen on time.

I dont know that I would call this a guide. Its saying to use a certain rom and kernel and to charge the phone. . . . .

hey thanks for the write up... i used it alone to change the colors! now my screen isn't yellow.
question though... when I adjust my colors manually, when I go to 0 percent brightness, everything goes like super green... like crazy looking lol.. but at 3 percent it's fine again... any idea why this happens and how I can fix it to get true 0 percent? thanks!
Sent from my Galaxy Nexus using Tapatalk 2

I'm using a stock one and all I can say is: Just dont use Nexus as a videogame.
I got 3 days and some hours of battery talking some minutes and using wifi for some time (probably 4 hours overall).
Playing sucks up the battery life. At least for me.
A normal day of use, with wifi active, many calls, auto bright and SetCPU profiles gives me 'bout 18-24 hours of use.
A intense play day gives me 8 hours. And I think its generous.
:victory:

jayochs said:
hey thanks for the write up... i used it alone to change the colors! now my screen isn't yellow.
question though... when I adjust my colors manually, when I go to 0 percent brightness, everything goes like super green... like crazy looking lol.. but at 3 percent it's fine again... any idea why this happens and how I can fix it to get true 0 percent? thanks!
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Finally I helped one person, thanks man I love you XD
and this guide is just experience, because most people are wondering what is best rom and kernel combination, well this was best for me at least.

full stock

Battery Drain

Is there an app or way that conserves the battery power. The phone is still completely stock but it received a firmware update through Tmobile and ever since then the battery gets drained by 4 pm (after all apps are x-ed out and phone is just in standby) the batter drops to around 30 percent... what can I do? I don't think it needs a new battery since its only a few months old... suggestions?

SLP Catalyst said:
Is there an app or way that conserves the battery power. The phone is still completely stock but it received a firmware update through Tmobile and ever since then the battery gets drained by 4 pm (after all apps are x-ed out and phone is just in standby) the batter drops to around 30 percent... what can I do? I don't think it needs a new battery since its only a few months old... suggestions?
Click to expand...
Click to collapse
I dont know how much you use your phone and weather or not you watch movies or download files with Wi-Fi alot but it could seriously drain your battery if you leave things like Wi-Fi, Bluetooth, NFC, Brightness Up, or use live wallpapers.
If not, I would recommend checking your battery against someone elses because I've had a phone before that had a bad battery that could explode and caused me to have battery issues. Make sure your battery isnt swollen at all and if it is make sure you take it out and dont put it back in and go to a Battery+ store nearby and I'm sure they got one for your phone (they come with warranty).

Well my wife and I have the same phone and it does it to both. I don't have signal in my job since they have a Verizon antenna and it blocks our t mobile signal so I don't use it during the day which means the phone is just on stand by for the first eight hours. I make sure I turn off wifi, blue tooth, GPS etc and close all apps....but by the time I get out of work it's at 30-40% power.... both phones were bought this April so was hoping it wasn't/isn't a hardware issue and have to replace the batteries....
Sent from my SGH-T989

This is where the world of rooting and tweaking your android becomes extremely attractive.
There are ROMs that last 1 day + ( that's 24h+ hours of battery)
Only need two things....
1. Patience - to sit, read and closely follow instructions
2. Guts - to take a dive and risk ruining your phone. (Which doesn't happen if you have number 1)
Sent from my SGH-T989 using xda app-developers app

thanks for the reply. Yeah I've been thinking about doing such things, but am a complete noob. Is there a link to a tutorial (from start to finish) on rooting/flashing custom rom in here? All I see is one or two step threads or discussions on different roms?

SLP Catalyst said:
thanks for the reply. Yeah I've been thinking about doing such things, but am a complete noob. Is there a link to a tutorial (from start to finish) on rooting/flashing custom rom in here? All I see is one or two step threads or discussions on different roms?
Click to expand...
Click to collapse
Try this.
http://forum.xda-developers.com/showthread.php?t=1650908
Or this ( more thorough and noobish)
http://theunlockr.com/2011/12/01/how-to-root-the-samsung-galaxy-s-ii-all-versions/
Sent from my SGH-T989 using xda app-developers app

1. juice defender is a start.
The rest all needs rooting really.
2. Build.prop tweaks
3. UV with a custom kernel
4. Lowest screen brightness (doesn't require root)
5. Restrict yourself to 2G networks either using AOKP settings or a build.prop tweak
There are others but this is how I achieve great battery times mostly.
Sent from my SGH-T989 using xda app-developers app

TheLastSidekick said:
1. juice defender is a start.
The rest all needs rooting really.
2. Build.prop tweaks
3. UV with a custom kernel
4. Lowest screen brightness (doesn't require root)
5. Restrict yourself to 2G networks either using AOKP settings or a build.prop tweak
There are others but this is how I achieve great battery times mostly.
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the info:thumbup:
Sent from my SGH-T989

SLP Catalyst said:
Thanks for the info:thumbup:
Sent from my SGH-T989
Click to expand...
Click to collapse
Why not try and find out what is using your battery up first? Try GSAM from the play store, its free for one, easy to use, it will show you what is draining your battery, there are a few paid ones as well, but try the free first , HERE is the direct link to GSAM.
or QR code, just scan it with phone.

SLP Catalyst said:
Well my wife and I have the same phone and it does it to both. I don't have signal in my job since they have a Verizon antenna and it blocks our t mobile signal so I don't use it during the day which means the phone is just on stand by for the first eight hours. I make sure I turn off wifi, blue tooth, GPS etc and close all apps....but by the time I get out of work it's at 30-40% power.... both phones were bought this April so was hoping it wasn't/isn't a hardware issue and have to replace the batteries....
Sent from my SGH-T989
Click to expand...
Click to collapse
That is a very weird situation and try a app that shows the apps using battery. Even check the stock android battery section in settings and see whats getting used. Your brightness should be first since it can really eat your battery if its turned up. I dont think its defective since both your phones are having the same problem but both my parents have the 4.0.4 firmware installed on their T989's without a problem and get decent battery power. I however am using a custom rom with kernel. Did you use the same battery for each phone? or each phone has the same problem with their own devices and their own batteries when getting updated to 4.0.4? If you used your battery on her's I'm assuming the problem may be the battery and you just got unlucky with a defective one.
P.S. I'm assuming 4.0.4 because thats the latest update to ICS for the T989 on T-Mobile.

The battery manager that comes with the phone identifies the display, but I've set it to lowest setting and have a dark background. And yeah both phones have their respective batteries which makes me think it's a software issue.. We just upgraded to the 2.3.6 ( I guess t-mobile is a but behind lol). But I going to try the juice defender tomorrow... It's just while I root the phone and get a custom ROM... (doing my homework before doing anything since it'll be first time)
Sent from my SGH-T989

Those apps wont really help, it basically does what you can do manually, turning off settings or putting them at low usage. Rooting is the way to go, its rather simple, once you do it, you will have wished you done it sooner. Trust me, I was in the same boat, I had just got my phone last december, the wife and I were in Vegas and my battery was horrible, I was taking lots of pictures and video, but my battery was dying. I had no way to charge it til we got back to the hotel, next day was same thing, horrible battery, this was all before ICS even was around for this device. When I got back home, I rooted my phone, to date, I have gotten a best 44 hours out of the phone. I ROM hop so I try out the variety, there is how to's and videos here and youtube, you will kick youself on how easy it truly is to root and flash. GSAM will show you in more detail what is using your battery the most, good luck with whatever you choose to do. There are many people here who can help you along the way, thats what this site is for.

Juice Defender will help a ton with you're screen being off for extended periods of time. Normally without it, I lose 30% at work without touching it. Today, I have lost 6%. The margin won't always be like that but it's a sizeable difference. Also, I have an app monitor application you can use to track rogue apps. There is also this app called Autostarts where you can disable an app from opening and it's really useful for apps that you don't need running in the background. Turning off auto sync will help as well IF you are okay with not getting every email in 5 minutes.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Screen gets HOT

I know for a fact the phone gets hot when playing some games like Asphalt 7 and that is understandable but it never used to get hot while in regular use such as browsing the web or text messaging on stock and i could have the screen on for an hour. Ever since i installed CM10 and now on AOKP by task650 I have noticed the bottom half of the phone gets very warm even when doing simple things. I have the brightness set to auto at all times and within 15 minutes or so it starts to get hot.
Does this happen to anyone else or its just me? Also maybe there is a tweak for the screen in the ROM?

How long has it been since you installed these AOSP roms. In my experience, it takes one or two days for everything to settle down after installation, during which the phone might overheat and battery life takes a hit. My advice would be to give it some time, but if you're really worried, try fixing permissions or even going back to a touchwiz ROM.

jebise101 said:
I know for a fact the phone gets hot when playing some games like Asphalt 7 and that is understandable but it never used to get hot while in regular use such as browsing the web or text messaging on stock and i could have the screen on for an hour. Ever since i installed CM10 and now on AOKP by task650 I have noticed the bottom half of the phone gets very warm even when doing simple things. I have the brightness set to auto at all times and within 15 minutes or so it starts to get hot.
Does this happen to anyone else or its just me? Also maybe there is a tweak for the screen in the ROM?
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I am having the same problem with CM10. I have tried multiple nightlies with the stock CM10 kernel and my phone just seems to run warmer. I can't figure it out. When I flash back to the stock ROM it doesn't do it unless like you said, I am playing Asphalt or some other games.

Nah not worried because i have extended warranty on my phone. Its just i like my electronics to function the way they should and when they don't i HAVE to fix them or i will loose my mind, plus its kinda annoying when hold it.
I know it needs a few charge cycles and installed CM earlier this week so its been at least 3 days, but still noticed the phone heating up. I installed AOKP today and will try cycling the battery a few times.
Pardon my ignorance but why would fixing permissions have anything to do with this? Also there is no negative effects to doing this? I don't see any as it wil just mark everything rwx-r--r-- or whatever the default is, but just want to confirm.
RobbieL811 said:
I am having the same problem with CM10. I have tried multiple nightlies with the stock CM10 kernel and my phone just seems to run warmer. I can't figure it out. When I flash back to the stock ROM it doesn't do it unless like you said, I am playing Asphalt or some other games.
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I was thinking it maybe the CM kernel, would you mind flashing Kooz kernel? If you have CM for a few days. I still testing AOKP so might be a while before i can flash.

The bottom of mine gets real hot after about 15 minutes of browsing on LTE. It did it right out of the box, and I'm on stock.
Stock ICS on my S3

I disabled LTE yet its still gets hot.

jebise101 said:
Nah not worried because i have extended warranty on my phone. Its just i like my electronics to function the way they should and when they don't i HAVE to fix them or i will loose my mind, plus its kinda annoying when hold it.
I know it needs a few charge cycles and installed CM earlier this week so its been at least 3 days, but still noticed the phone heating up. I installed AOKP today and will try cycling the battery a few times.
Pardon my ignorance but why would fixing permissions have anything to do with this? Also there is no negative effects to doing this? I don't see any as it wil just mark everything rwx-r--r-- or whatever the default is, but just want to confirm.
I was thinking it maybe the CM kernel, would you mind flashing Kooz kernel? If you have CM for a few days. I still testing AOKP so might be a while before i can flash.
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That's what I was thinking it might be and no, I don't mind flashing the other kernel. As a matter of fact, I was wanting to try that myself but I couldn't figure out wich download I needed off the link that you just posted. Wich one should I download and flash with CM10? He's got several flashable kernels posted under the "Downloads" section. I just need to know wich one I need to use with CM10.

jebise101 said:
Nah not worried because i have extended warranty on my phone. Its just i like my electronics to function the way they should and when they don't i HAVE to fix them or i will loose my mind, plus its kinda annoying when hold it.
I know it needs a few charge cycles and installed CM earlier this week so its been at least 3 days, but still noticed the phone heating up. I installed AOKP today and will try cycling the battery a few times.
Pardon my ignorance but why would fixing permissions have anything to do with this? Also there is no negative effects to doing this? I don't see any as it wil just mark everything rwx-r--r-- or whatever the default is, but just want to confirm.
I was thinking it maybe the CM kernel, would you mind flashing Kooz kernel? If you have CM for a few days. I still testing AOKP so might be a while before i can flash.
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Fixing permissions tends to remedy certain glitches on my end. I don't nearly have enough knowledge to tell you why though. However, there are certain aspects of this phone that will lead to heat production no matter what you do: lte chip; powerful dual core CPU, etc. Furthermore, aosp ROMs are not stable nor are they fully optimized for the phone at this point, this will also lead to more resources being spent, which ultimately results in faster heat production. If it really bothers you, stick to what works and flash a stock ROM.
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RobbieL811 said:
That's what I was thinking it might be and no, I don't mind flashing the other kernel. As a matter of fact, I was wanting to try that myself but I couldn't figure out wich download I needed off the link that you just posted. Wich one should I download and flash with CM10? He's got several flashable kernels posted under the "Downloads" section. I just need to know wich one I need to use with CM10.
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You need to flash one of the AOSP JB kernels since you are on CM10. I can't tell you which one because that depends on which nightly you have installed. I guess there was major code changes after the 14th.
IUH1991 said:
Fixing permissions tends to remedy certain glitches on my end. I don't nearly have enough knowledge to tell you why though. However, there are certain aspects of this phone that will lead to heat production no matter what you do: lte chip; powerful dual core CPU, etc. Furthermore, aosp ROMs are not stable nor are they fully optimized for the phone at this point, this will also lead to more resources being spent, which ultimately results in faster heat production. If it really bothers you, stick to what works and flash a stock ROM.
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Yeah but it never did that with stock and its not a deal breaker i love AOKP no way am i flashing back to touchwiz. You know the ROM has been so stable that I expected everything to work but your right its not stable yet and some things are probably not optimized and that is the cause for the phone to heat up more then usual or kernel. Guess it can't hurt to make a nandroid and then fix permissions and if it goes south i have a backup:victory:

jebise101 said:
Yeah but it never did that with stock and its not a deal breaker i love AOKP no way am i flashing back to touchwiz. You know the ROM has been so stable that I expected everything to work but your right its not stable yet and some things are probably not optimized and that is the cause for the phone to heat up more then usual or kernel. Guess it can't hurt to make a nandroid and then fix permissions and if it goes south i have a backup:victory:
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Yeah, to my understanding, chipsets are designed to withstand a heat threshold of about 60 degrees Celsius. It is extremely hard to get it to that temp at stock speeds, so I wouldn't worry too much about something going awry with your phone.
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jebise101 said:
You need to flash one of the AOSP JB kernels since you are on CM10. I can't tell you which one because that depends on which nightly you have installed. I guess there was major code changes after the 14th.
Yeah but it never did that with stock and its not a deal breaker i love AOKP no way am i flashing back to touchwiz. You know the ROM has been so stable that I expected everything to work but your right its not stable yet and some things are probably not optimized and that is the cause for the phone to heat up more then usual or kernel. Guess it can't hurt to make a nandroid and then fix permissions and if it goes south i have a backup:victory:
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Ok. Thanks. I'll figure it out.

Can a mod please delete this unintended post?

RobbieL811 said:
Ok. Thanks. I'll figure it out.
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hehe keep me posted. I fixed permissions, we will see how it goes.

jebise101 said:
hehe keep me posted. I fixed permissions, we will see how it goes.
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I've clean flashed the new nightly and task's kernel. My phone still seems to be running warm! I'll run it for about 24 hours or so and see how it does. IDK what the hell it could be. Is there other people running CM10 that are having this same problem? And by the way...Do you know of a fix for the MMS? My pictures that were taken vertically show up in an MMS horizontally and visa versa. Is there no way to fix that?

RobbieL811 said:
I've clean flashed the new nightly and task's kernel. My phone still seems to be running warm! I'll run it for about 24 hours or so and see how it does. IDK what the hell it could be. Is there other people running CM10 that are having this same problem? And by the way...Do you know of a fix for the MMS? My pictures that were taken vertically show up in an MMS horizontally and visa versa. Is there no way to fix that?
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It seemed a bit better today, but then i been out all day and its been wet and cold so might not have noticed. Its not Task's kernel but rather Kooz but they do work together. Can you also keep an eye on battery life? his kernel is suppose to have amazing battery life and CM/AOKP for me have very bad battery life. Also make sure to cycle the battery at least 3 time.
NOTE: Battery cycling mean charging it to 100% and letting it die to 0% and repeating, this will calibrate the battery and maybe will help.
Just a recommendation for you to give AOKP a try. I always used CM, but CM had some bugs when i tried so i thought might as well give AOKP a try and its actually been solid and has more features then CM. Best part is the build in LED configuration for apps/notifications.
These devs make it so hard to choose, both are very good ROMS.

Yeah. That's a problem I have too. I can't decide which one I want. The KT 747 kernel has seemed to take care of my heat problems. I was cycling the battery anyways. Where can I get the AOKP ROM? Is it posted under original development? The 747 kernel also gave me some much better benchmark scores!
Edit - I see in ktweaker where you can change some voltages but I have NO clue about any of that! Any advice? I think there is a thread on here somewhere about it. I'll have to find it & read it I guess.
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RobbieL811 said:
Yeah. That's a problem I have too. I can't decide which one I want. The KT 747 kernel has seemed to take care of my heat problems. I was cycling the battery anyways. Where can I get the AOKP ROM? Is it posted under original development? The 747 kernel also gave me some much better benchmark scores!
Edit - I see in ktweaker where you can change some voltages but I have NO clue about any of that! Any advice? I think there is a thread on here somewhere about it. I'll have to find it & read it I guess.
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go into the ktweaker voltages then hit menu and you have an option to add or subtract 5-25 mv. Take away a bit and do a stress test if its good then try some more etc etc. You get the picture
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thatsupnow said:
go into the ktweaker voltages then hit menu and you have an option to add or subtract 5-25 mv. Take away a bit and do a stress test if its good then try some more etc etc. You get the picture
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Yeah. But the lower I set my voltages, will that affect the speeds that my phone runs at? Idk how to word my question. I guess what I'm saying is, if I lower the voltage on my 1.5GHz setting will it make my benchmark lower?
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RobbieL811 said:
Yeah. But the lower I set my voltages, will that affect the speeds that my phone runs at? Idk how to word my question. I guess what I'm saying is, if I lower the voltage on my 1.5GHz setting will it make my benchmark lower?
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Pfft! You should know at this point in the game that benchmarks mean nothing, its all about real world performance. Basically I'd just start playing around its the only way to learn what works and what doesn't on your device! Cause afterall every device is different no 2 chips are the same, what works on one device might not work on another
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Yeah. I know. I guess I didn't necessarily mean my benchmark. I guess I meant speed.
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