UPGRADE YOUR GALAXY S2 TO OFFICIAL JELLY BEAN v4.1.2 NOW!

Download Here

When download is complete,

Rename and flash these 3 files. NO NEED to add PIT or Checksum during flashing.

PDA = CODE_I9100XXLSJ.tar

PHONE = MODEM_I9100XXLS6.tar

CSC = CSC_HOME_OXX_I9100OXXLS1.tar

Rename by removing the .md5 in the above 3 files. (Hence CODE_I9100XXLSJ.tar.md5 will now just be CODE_I9100XXLSJ.tar) same to others.

HOW TO FLASH

Click here to flash

HOW TO ROOT ( Without Yellow Triangle :P )
1) Download Here

2) Rename CWM-SuperSU-v0.97.zip to update.zip and copy to your EXTERNAL SD.
3) Flash as an 'update' in stock samsung recovery

WELCOME TO JELLYBEAN GALAXY S2!!! :)