if custom rom then go up to?

Android Mashmallow

http://forum.xda-developers.com/galaxy-s3/...-i9300-t3238243

So far, imo S3 and most Samsung Flag Ship (other then nexus) have best unoffical support:

http://forum.xda-developers.com/galaxy-s3/development

how to unroot my phone, i have downloaded odin but cant find the firmware, my android version now is 4.4.4

I have tried tested many KK and CM12.1
JB base rom is still better due to less bug and stable.

how to unroot, i dont know whats the firmware. I downloaded odin already and my phone version is 4.4.4

Look for it in SuperSU

sorry guys, how you do nandroid backup?
backup with data, it will go around 3gb something,...
without data it less... but cannot boot the phone..did i do something wrong?

should be like this - it has to be with data - i never tried without it.

This post has been edited by surefire v LED: Apr 18 2016, 09:19 AM

Just flashed NCS 20 in my son's S3 very nice better than NCS 18.5 but his USB port is dying only can generate 200mAh to charge the battery and it takes hours.
Any recommendation for swapping the USB port?

Hai guys anyone can recommend any shop to diagnose my s3..because now i try to charge my phone no blinking or vibrate watsoever..when i plug in my charger, the plug make bzzzzzz noise i dunno why but the bzzz noise gone when plug in to other phone...i suspect the phone reach EOL huhu but sayang to buang cos want to give to my sis.....
Event lead to this problem was that my bro play game until 0 percent and died,now i want to charge, the phone wont turn on..also the phone is rooted and running ncs 18.5

Thanks

Try to change to another fully charged battery n see if the device can be turned on n boot up..

after flashed custom rom, my s3 facing bootloop, stuck on the logo of the custom rom. Unable boot into recovery mode since my home button is not functioning. How to solve this?

1. Re-flash the custom ROM
2. Flash back to Stock and confirm is due to Stock ROM or phone problem, then consider to re-flash the Custom you flashed or go to new ROM

Hi guys!

Any suggestions on what kind of rom/kernel should I get? I wanna opt for the best battery life and performance.
My friends told me to get blisspop rom, but I've never heard of it ...

Any advice? Thanks~~

For better battery life/performance, get CyanogenMod 13.

Why CM13, if you don't mind me asking ? Are there any particular reasons ? Because I was using CM11 before and it drains my battery fast.

Because it's based on Marshmallow. They fixed the battery problem with CM13, and there is little to no bug with this ROM.

Ahh alright thanks! Should I get a kernel on top of it as well? Just to make sure the device doesn't overclock itself?

Yes, definitely.

I used stock + Boeffla and so far it is stable and battery is superb....