yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S 4 Original Android Developme] lilbigdude1:
You're right ....OK minus the charge which I didn't take in to consideration, 6 hours which is still great....:D
[AT&T Samsung Galaxy S 4 Original Android Developme] saldebot:
hello all, I am running a international rom (BobCatRom) I flashed this updated kernel. After it flashed it said fail and to wipe cache. After I wiped the cache the phone will not reboot it just vibrates every 2 to 4 seconds. I jigged it and was able to flash stock firmware thru Odin, however it wont boot up. Can anyone please give me some insight on what I can do, or do I need to just request a replacement.

TIA
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Sounds like u don't have a i337 phone or its an improperly built ROM.
[AT&T Samsung Galaxy S 4 Original Android Developme] 1weener:
It sounds like you need a jtag service. You can find one on Ebay for under $30. You cannot flash the wrong kernel on a phone.
[AT&T Samsung Galaxy S 4 Original Android Developme] calvin35:
Did you try booting to stock recovery and wiping data?
[AT&T Samsung Galaxy S 4 Original Android Developme] crash822:
Boot to recovery and do a factory wipe
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
OP Updated

Change Log 9.17.2013

1. Linux 3.4.60

2. Linux 3.4.61

3. Linux 3.4.62

4. Build zram into the kernel instead of as a module (Be sure to check in with rlorange if you are utilizing zram)

5. Analyzed MH5 source and not changes were found for kernel

Download from links above or use your OTA. ENJOY!!!!!!!!!! :D
[AT&T Samsung Galaxy S 4 Original Android Developme] sky_fox:
Yay yay yay. I've been waiting to see what you are bringing next [MENTION=4325945]ktoonsez[/MENTION]

Thank you again for one of the best kernels out there .
[AT&T Samsung Galaxy S 4 Original Android Developme] Planktron:
He's back! :D
[AT&T Samsung Galaxy S 4 Original Android Developme] sk8trix:
Nice....I woke up to an update for this kernel and my rom and an email about my nexus 7 LTE being shipped this is the start of a good day.
[AT&T Samsung Galaxy S 4 Original Android Developme] sky_fox:
How's it working?

You did what I said right? Did it fix it correctly ? I had the same problem thinking he screwed up the kernel. lol . Come to find out I just had to some exploring. Hope you got her running good.
[AT&T Samsung Galaxy S 4 Original Android Developme] REDFOCZ:
Yeah it worked perfectly and I am getting awesome results. Getting about 5-6 hours screen in time with about 14 hours of useage. This kernel along with kangabean is a perfect combo for me. I just updated the ROM and kernel so I know its going to take a day or two to settle in again.

Sent from my Galaxy S4
[AT&T Samsung Galaxy S 4 Original Android Developme] DesertEagleSlim:
Running Alpha 9.1 on my i337 an when I flash newest kernel it freeze on boot screen. Anyone else have this problem?
[AT&T Samsung Galaxy S 4 Original Android Developme] Tylorw1:
I'll second this, with the 9-17 kernel

GOLDENEYE won't boot and stays stuck on boot screen I am on 5.1 still though, dunno if that has anything to do with it. I just flashed the 8-25 kernel again and everything is ok.

Tylorw1

---------- Post added at 04:36 PM ---------- Previous post was at 04:31 PM ----------

After Odin, remove battery for a minute, and try booting device into stock recovery and performing a factory reset. I had this problem as well but what I think did it for me was kies but I had to let the phone sit for a minute before reinserting the battery and booting into recovery.

Tylorw1
[AT&T Samsung Galaxy S 4 Original Android Developme] rlorange:
If you have a boot script set from Turbo ZRAM and the old kernel you need to remove it before you flash the newest kernel
[AT&T Samsung Galaxy S 4 Original Android Developme] igotroot:
No issues here with Kangabean 3.01.

In fact I haven't even launched the KT apk and notice an immediate rate of peppiness in the scrolling, and overall movement.

Some people like Faux, which I've never tried yet but I'm confident in KT and this kernel's build quality.
[AT&T Samsung Galaxy S 4 Original Android Developme] PapaMag:
Just flashed 9-17, running it with BeanStalk and everything is smooth, Thanks so much
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Updated my settings in Post #3

My settings

General Screen

governor = ktoonservativeq

scheduler = bfq

Min Mhz = 189

Max Mhz = 1998

Voltage Screen

UV'd 50mv across the board for CPU and 75 for GPU (use menu button for hidden menu option to globally subtract)

Extras Screen

Screen OFF Profile Mhz = 486

Disable Screen Off Mhz Call = Enabled

Screen OFF Profile Sched = noop

GPU Max Mhz = 504

Screen OFF GPU Max Mhz = 200

GPU governor = simple

Internal Read Ahead = 2048

External Read Ahead = 2048

General -> Governor Adjustments Screen

sync_extra_cores=1

touch_boost_cpu = 1242

touch_boost_cpu_all_cores=1

up_threshold = 80

sampling_rate = 40000

sampling_rate_screen_off = 90000

disable_hotplugging_chrg = 1

ALL THE REST ARE STOCK

__________________________________________________________________
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
FORGOT TO ADD #4 IN CHANGE LOG FROM 9/17 RELEASE (BFQ scheduler upgrade)

Change Log 9.17.2013

1. Linux 3.4.60

2. Linux 3.4.61

3. Linux 3.4.62

4. BFQ v6-r2

5. Build zram into the kernel instead of a module on TW (Be sure to check in with rlorange if you are utilizing zram)

6. Analyzed MH5 source and no changes were found for kernel
[AT&T Samsung Galaxy S 4 Original Android Developme] Hippoman13:
How is BFQ now? :D
[AT&T Samsung Galaxy S 4 Original Android Developme] DesertEagleSlim:
This totally fixed it for me.
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
I like it. No issues in 4 days now
[AT&T Samsung Galaxy S 4 Original Android Developme] mikecantreed:
What kind of battery life have you been getting?
[AT&T Samsung Galaxy S 4 Original Android Developme] 1weener:
reboots on video

The latest KT kernel is not letting me play any videos or Netflix. Other kernels fix the issue as well as stock. This has happened on both CM and Beanstalk. I just thought I'd mention it since I see no references to any problems at all... so videos play fine for everyone?
[AT&T Samsung Galaxy S 4 Original Android Developme] kasper67:
Playing fine on task's AOKP. Netflix and videos.
[AT&T Samsung Galaxy S 4 Original Android Developme] 21cdb:
Videos kept freezing the phone for me with this kernel on Beanstalk. Also got random crashes. I had to revert to the stock kernel.
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
2.5 days with 2 hours screen time and rest calls
[AT&T Samsung Galaxy S 4 Original Android Developme] rav4kar:
found where 99kt* scripts coming from !! :laugh:
[AT&T Samsung Galaxy S 4 Original Android Developme] bubblebuddyi:
How do you use or adjust the ZRAM settings? Or is it just preset and non-adjustable?
[AT&T Samsung Galaxy S 4 Original Android Developme] jedimyndtryx:
[MENTION=3145598]rlorange[/MENTION] is updating the Turbo ZRAM apk. Said update was coming soon. Waiting for this myself :)
[AT&T Samsung Galaxy S 4 Original Android Developme] rlorange:
Just updated Turbo ZRAM
[AT&T Samsung Galaxy S 4 Original Android Developme] Khalsa4G:
Wow impressive! Is this on CM, AOKP, or something else? Thx!

AT&T S4 | GOLDENEYE 5.1 | 3Minit 3.4
[AT&T Samsung Galaxy S 4 Original Android Developme] beast3300:
Probably Kangbean
[AT&T Samsung Galaxy S 4 Original Android Developme] LuigiBull23:
Nope. He is on CM 10.2
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
LuigiBull23 is right :good:
[AT&T Samsung Galaxy S 4 Original Android Developme] Khalsa4G:
Thanks! Currently running your new Settings on Goldeneye 5.1 with no issues! Upgrading to 7.1 shortly as 3Minit has become compatible with MH8 / MI1 and will report back.

AT&T S4 | GOLDENEYE 5.1 | 3Minit 3.4
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
***** important *****

***** IMPORTANT *****

LuigiBull23 has done some testing with some people that were having issues with Video playback with version with the GPU voltage control and found that everything is OK as long as you stick to multiples of 25. Anything smaller and not divisible by 25 will more than likely cause problems/reboots or out right ignoring the values by the GPU hardware itself. When he came to me with this info it immediately triggered my memory about my Nexus 10 device doing the same exact thing. So in conclusion, only do multiples of 25 when UVing the GPU. I will change KTweaker to do steps in multiples of 25 for the next release.

Hope this helps some of you people out there :good: :D. And be sure to thank LuigiBull23!!!!!
[AT&T Samsung Galaxy S 4 Original Android Developme] manny05:
Ahh. I been wondering why at times my phone has rebooted. I fixed it by adding multiple of 5 until it stopped.

Sent from my Samsung Galaxy S4
[AT&T Samsung Galaxy S 4 Original Android Developme] a40dayflud818:
The link for 4.2.2 TW is down. =(
[AT&T Samsung Galaxy S 4 Original Android Developme] noahk11:
Hey everyone,

I'm new to kernels, and the Galaxy S4 in general (with previous devices i have always used the kernel that comes with the ROM). Long story short, I wish to use the Vision X rom and this kernel seems to be the recommended one.

However, I don't really feel comfortable with flashing this because I don't really know how it will affect my device, I feel like im going to have to be configuring things i don't know the meaning of, I also fear that my battery life will be sub-par.

Any help? :o

Thanks
[AT&T Samsung Galaxy S 4 Original Android Developme] CamFlawless:
First off, I'd Google around and find some threads detailing and explaining kernel basics. In fact, a few are even linked in this thread's OP. Next, I would read the OP of this thread in its entirety as it details everything you will need to know about flashing this kernel.

I can assure you that if you read up and look around, you'll find that this kernel will do wonders for your battery life and overall performance. I would recommend checking out the following thread which details some of the best settings as well as how to set them on your own device. It is a great place to ask questions and discuss anything related to ktoonsez awesome kernel.

http://xdaforums.com/showthread.php?t=2289140
[AT&T Samsung Galaxy S 4 Original Android Developme] crash822:
Ktoonsez's settings are on front page if you're feeling iffy about settings. Download the correct version of the kernel for Vision X, be it aosp, touchwiz, 4.2 or 4.3. Google what governors and i/o schedulers are and any other settings you don't recognize in the app.
[AT&T Samsung Galaxy S 4 Original Android Developme] alacrify:
Nandroid, flash, experiment. But FIRST read the Original Post (OP) and posts 2 and 3. If you use the settings in post 3, you should be fine, depending on your hardware (the UV might need adjusting for you). And doing some research and reading will do you more good than asking people to spoon-feed you :P
[AT&T Samsung Galaxy S 4 Original Android Developme] Br4nd3n:
Pairing this kernel with task650. Prefect combination for gaming. My frames are through the roof on any game. Superb Kernel man!
[AT&T Samsung Galaxy S 4 Original Android Developme] gravedigger76:
Is there any threads that are recommended to learn more about ZRAM? Where/How/What etc..?

thanks.
[AT&T Samsung Galaxy S 4 Original Android Developme] rlorange:
Yep try this mate.

http://xdaforums.com/showthread.php?t=2422040

[21/9][MOD][KT/TW-Adam2.1/2-Audism]Turbo ZRAM V2.1c | 4Xzram swaps | UPDATED!

Follow op carefully it can fickle getting it to work on some rom setups
[AT&T Samsung Galaxy S 4 Original Android Developme] Gandalf:
Disregard
[AT&T Samsung Galaxy S 4 Original Android Developme] 1weener:
A big THANKS to you and LuigiBull23 for identifying and reporting this. It fix my Netflix and video reboots... I'm back with KT all the way! :good:
[AT&T Samsung Galaxy S 4 Original Android Developme] gordec:
Anyone knows a way to keep the screen on during phone calls when the phone is not held by your ear/proximity sensor triggered? In default setting, the screen will stay off even held far from my ear or using bluetooth/speaker phone. Once a while it will go into SOD, and I have to reset the phone to get the screen to turn back on after the call is over.
[AT&T Samsung Galaxy S 4 Original Android Developme] nklenchik:
Do you undervolt your phone?
[AT&T Samsung Galaxy S 4 Original Android Developme] gordec:
No. Default setting. I'm on Google edition by ibast.
[AT&T Samsung Galaxy S 4 Original Android Developme] mbc663:
disable screen off mhz while on call in ktweaker?
[AT&T Samsung Galaxy S 4 Original Android Developme] crash822:
Speaker phone?
[AT&T Samsung Galaxy S 4 Original Android Developme] gordec:
Yes all forms, Bluetooth, speaker, ear piece. I have messed with Ktweaker settings.
[AT&T Samsung Galaxy S 4 Original Android Developme] Br4nd3n:
Edit: -removed- nvm
[AT&T Samsung Galaxy S 4 Original Android Developme] kswa1987:
Haven't tried a custom kernel since upgrading from my S3. Glad to see you're still going beastmode KT!

Loaded up your preferred settings and it's running smooth as butter.

Slimbean 4.3 build 1
[AT&T Samsung Galaxy S 4 Original Android Developme] svs57:
KT latest, omega 12, i337

Incoming call: music play but screen is dark.

Have to wait to phone up to answer call.

kt setting from this thread except UV.

With UV time to time phone reboot after call.

---------- Post added at 08:04 PM ---------- Previous post was at 07:55 PM ----------

KT latest, omega 12, i337

Incoming call: music play but screen is dark.

Have to wait to phone up to answer call.

kt setting from this thread except UV.

With UV time to time phone reboot after call.
[AT&T Samsung Galaxy S 4 Original Android Developme] WheresWaldo:
There are suggested settings for things like this in the KT kernel thread. Try upping the speed of the gpu then look at other suggestions on the KT thread.
[AT&T Samsung Galaxy S 4 Original Android Developme] svs57:
Thank you for answer. I already use suggested settings from thread except UV.

I don't use UV beause phone reboot after call with suggested here values.

As about screen didn't wake up while call.

Am I correct that you suggest me up "Screen Off GPU Max Mhz"?
[AT&T Samsung Galaxy S 4 Original Android Developme] LuigiBull23:
I could be wrong but I think he was referring to the thread linked below. Just pick and choose whatever interests you. All my setups are UV by only 30-50 mV so you should face no issues there. Also, try raising your screen off profile mhz to about 702. Should allow for a more rapid response during incoming calls. If that doesn't help then disable Screen Off Mhz Call.

http://xdaforums.com/showthread.php?p=44314946
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
That should be ENABLE "Screen Off Mhz Call" from the option screen :D
[AT&T Samsung Galaxy S 4 Original Android Developme] LuigiBull23:
Yup. Exactly what I meant lol. The title of the option can be confusing. Thanks for clarifying though. :D
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
OTA Update

Everybody on 4.3 TW and AOSP, check your OTA for an update. Not much, but all I could do since I'm working too much making 6 bucks an hour this week I think :(
[AT&T Samsung Galaxy S 4 Original Android Developme] 13silencer13:
Cant find (sync_extra_cores)(touch_boost_cpu) and (touch_boost_cpu_all_cores) and (sampling_rate_screen_off) and (disable_hotplugging_chrg) any help here a screen shot of what I see thank you in advance
[AT&T Samsung Galaxy S 4 Original Android Developme] Spunjah413:
You need to select Ktoonservativeq as your governor.
[AT&T Samsung Galaxy S 4 Original Android Developme] LuigiBull23:
Yes sir
[AT&T Samsung Galaxy S 4 Original Android Developme] 13silencer13:
Thanks completely missed that
[AT&T Samsung Galaxy S 4 Original Android Developme] Br4nd3n:
Yep! In fact I'm using task650 and this kernel. Awesome combination for speed and gaming.
[AT&T Samsung Galaxy S 4 Original Android Developme] scloutkst:
Perhaps some. Ginkgo is in order my friend you asked the same thing 2 weeks ago :P Post # 2497
[AT&T Samsung Galaxy S 4 Original Android Developme] Hippoman13:
Is it possible to utilize kernel sources from the 4.3 leak? I suspect they would improve performance and increase screen quality, as reported :D
[AT&T Samsung Galaxy S 4 Original Android Developme] gravedigger76:
What could prevent my phone from going to deep sleep? It idles down to lowest mhz I have set and stays there pretty well but just doesn't go into deep sleep?

On TW kernel for 4.2.2 rom running golden eye v8 (MI1)

Setting as KT recommended earlier.
[AT&T Samsung Galaxy S 4 Original Android Developme] scloutkst:
6 hours of wake lock on the power manager service. That could be any Google service including gps. Go and clear the app data and cache for any Google services. Especially Google play services. Start their and let me know how it goes after that. Also check Google location settings and make sure it isn't set to use cellular and wifi networks for location in the background. Use gps antenna for location only.

Infamous Alpha// Task650 AOKP - FTW
[AT&T Samsung Galaxy S 4 Original Android Developme] fireattack7:
I'm running Carbon Rom. It has a toggle for Fast Charge On/Off. It will not toggle the Fast Charge in the Kernel settings. Any ideas?
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Yes they will.
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Did u guys run my previous version just fine?
[AT&T Samsung Galaxy S 4 Original Android Developme] beast3300:
Same here
[AT&T Samsung Galaxy S 4 Original Android Developme] ghost77:
KT-SGS4-TW-JB-ATT-05-23-2013.zip , works fine but so far all 27 versions bootloops.
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Ok, gonna revert GPU OC and see what happens, version "D" be up in a minute.
[AT&T Samsung Galaxy S 4 Original Android Developme] bookmonke:
Yes, I flash back to the previous version when this one loops.
[AT&T Samsung Galaxy S 4 Original Android Developme] manny05:
How big is the file suppose to be anyways? I noticed the first one was 11mb. And the new one is 9mb.maybe you forgot to add something?

Sent from my Samsung Galaxy S4
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
New ones from today are 8-9 MB, enabled better compression.
[AT&T Samsung Galaxy S 4 Original Android Developme] manny05:
Ah. Just making sure lol. Anxious to try the newest update :D

Sent from my Samsung Galaxy S4
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Version "D":

http://www.mediafire.com/?42886ol4gkjv1wi
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Your booting just fine aren't u?
[AT&T Samsung Galaxy S 4 Original Android Developme] manny05:
Haven't tried it since everyone said it wasn't booting. Gonna try version D now.

Sent from my Samsung Galaxy S4
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
I got 20 testers booting just fine :good:
[AT&T Samsung Galaxy S 4 Original Android Developme] ghost77:
D version bootloops.
[AT&T Samsung Galaxy S 4 Original Android Developme] beast3300:
"D" boot looped for me.
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Ok, got one more, 3 more minutes.
[AT&T Samsung Galaxy S 4 Original Android Developme] manny05:
Bootlooped as well here :/

Sent from my Samsung Galaxy S4
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Here is "E"

http://www.mediafire.com/?wy18ajf88mdfg82
[AT&T Samsung Galaxy S 4 Original Android Developme] ghost77:
E bootloops. :crying:
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
Guess your phones cant handle it anymore, I reverted every cool except Linaro.
[AT&T Samsung Galaxy S 4 Original Android Developme] LuigiBull23:
You need to plug in the usb AFTER you've enabled fast charge. Also make sure Ktweaker has been granted Superuser permissions once you've enabled the option.
[AT&T Samsung Galaxy S 4 Original Android Developme] Kriomag:
MI8

does this kernel work with leaked MI8 ?
[AT&T Samsung Galaxy S 4 Original Android Developme] :
run the TW 4.3 one and wipe caches after you flash it
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
AOSP 4.3 guys, check your OTA for updates. Some CM patches and 2 Linux upgrades :D
[AT&T Samsung Galaxy S 4 Original Android Developme] m.a.s.e:
thank you Genius !!!
[AT&T Samsung Galaxy S 4 Original Android Developme] m.a.s.e:
Hi KT i have a question, hope you can help me.

I am using your Kernel with Liqueedsmooth ROM 4.3 AOKP.

i also have the pioneer appradio 3 and using an app called "AppRadio Unchained".

this app uses the Bluetooth to connect to the radio and enable the ability to control the phone from the car stereo.

the problem i am having is when it is connected and i also use "screen standby" the phone becomes super slow and sluggish.... i swipe the screen and it takes 5 seconds to register the comand and the phone become super slow unless i restart...

it didn't happen when i was on 4.2.2 with ur kernel with same settings.

Now the way i see it, it could come from 2 different locations. 1 will be the BT mhz minimum and the second will be from screenoff mhz.

wanted to take your input on this, thoughts on way to troubleshoot this issue and resolve it.

thank you !!!!
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
You nailed it on your 2 options there. As far as why its not present on the older ROM I would say your app has some compatbility issues with 4.3 is what it sounds like.
[AT&T Samsung Galaxy S 4 Original Android Developme] m.a.s.e:
Thanks for the response man. I actually figured out the root source of the issue. It's due to the app "screen standby" it got nothing to do with ur awesome kernel:) now still trying to figure out how go resolve this issue but that's for a different thread:)
[AT&T Samsung Galaxy S 4 Original Android Developme] I9000bramgmail:
[MENTION=4325945]ktoonsez[/MENTION]

is there a reason you use more than double the sample_rate when your screen is off?
[AT&T Samsung Galaxy S 4 Original Android Developme] svs57:
Do anybody have problem with Menu and Back button?

Sometimes, very rarely phone lose it

Only reboot help.

Do not know is it kernel om ROM issue.
[AT&T Samsung Galaxy S 4 Original Android Developme] LuigiBull23:
Are you using Nova Launcher?
[AT&T Samsung Galaxy S 4 Original Android Developme] svs57:
No. I use TouchWiz. Omega 12 ROM
[AT&T Samsung Galaxy S 4 Original Android Developme] ChaosMinionX:
I believe this correlates to the amount of time the device waits until polling again, setting is probably meaning 90k miliseconds... Makes sense if your screen is off that you would want the processor to be doing less polling for events.
[AT&T Samsung Galaxy S 4 Original Android Developme] I9000bramgmail:
Oh that explains, I assumed the higher the samplerate the more it would poll, like in audio the higher the more samples, the more cpu usage.

I must've mistaken that to be the case here as well, thanks for clearin it up (:
[AT&T Samsung Galaxy S 4 Original Android Developme] fransarj:
Hi,

Read on OP that you need to have a ROOTED TW Rom to run this. Been having problems rooting my phone.

Currently running the latest stock I9505DXUBMG5. Flashing CFRoot doesn't work so I flashed Philz Touch Recovery via Odin. The recovery had a root ability which didnt work. I also tried flashing superSU via Philz. Still no luck.

Question is,

Can i flash this kernel on my stock/non-rooted TW rom AND acquire root at the same time?

This phone has been a pain to flash unlike all my other devices.

Appreciate the help. Thanks!
[AT&T Samsung Galaxy S 4 Original Android Developme] :
This is the att thread. Check in i9505 threads for proper rooting

You need root and a custom recovery to flash this kernel

Although KT's att kernels may work on i9505 and vice versa best to use his in the i9505 Original Dev thread

As far as your prior rooting attempts, I am not familiar with them for your device
[AT&T Samsung Galaxy S 4 Original Android Developme] ktoonsez:
For ALL Versions, check your OTA for updates. Linux upgrades for all the other versions and KTweaker update for steps of 25 for GPU now :D