This is the official Samsung release for Galaxy S2. Requires Odin to flash.
(Odin is included in the package).
Model: Samsung Galaxy S2 I9100
Android: ICS 4.0.3 XXLPQ kernel 3.0.15
2. Run "Odin3 v1.83.exe"
3. Enter "Download mode" on your phone - downArrow, Home Key, and power button pressed simultaneously; Press upArrow to "continue"
4. [NOW - after running Odin] - connect the mobile via USB to the PC
5. Click PDA - select "I9100XXLPQ_I9100OXALPQ_I9100XXLPQ_HOME.tar.md5" file
6. DO NOT CHANGE ANY other settings
7. Click start
Your Odin should look like this: