How do I put stock/pure android (custom rom) on my rooted Galaxy s3 phone?

[DroidJosh96]

Hello Android community, I have a Galaxy s3 SPH-L710 that is rooted, and been told I could make it better and faster through custom ROMS. But I have never done this before and need help, it has been rooted through Oneclickroot, if that helps... Please help!!

 

[SactoKingsFan]

Do you have custom recovery?

You need a custom recovery (TWRP or CWM) to install a custom ROM. I suggest TWRP. You can add TWRP custom recovery through goo manager app or flash file from TWRP site through Odin.

Once you have TWRP you can install a custom ROM by downloading custom ROM file and Gapps on computer, then transfer files to phone and install custom ROM and Gapps from TWRP.

Edit: You should make a nandroid backup in TWRP before flashing ROM.

Sent from my G2 running SlimKat

 

[DroidJosh96]

Do you have custom recovery?

You need a custom recovery (TWRP or CWM) to install a custom ROM. I suggest TWRP. You can add TWRP custom recovery through goo manager app or flash file from TWRP site through Odin.

Once you have TWRP you can install a custom ROM by downloading custom ROM file and Gapps on computer, then transfer files to phone and install custom ROM and Gapps from TWRP.

Edit: You should make a nandroid backup in TWRP before flashing ROM.

Sent from my G2 running SlimKat

Would it be best with a computer or just my phone?

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