This is an early, "alpha", developer port of Jelly Bean for the Samsung Galaxy S2, GT-i9100.
The first Jelly Bean ROM is available for you to try. It is an, "alpha", port and not intended for daily use.***
Jelly Bean Android 4.1 Alpha for Samsung Galaxy s2 i9100 - YouTube
"Important:
Before attempting to flash this ROM, please understand the risks to your device, which include the possibility of causing it to enter a bootloop, causing a soft-brick, or potentially even a hard-brick. Understand that the chances of causing a problem which cannot be fixed is very low, but still a real possibility. If something crazy should go wrong, and you end up with a broken device, do not blame anyone but yourself. Consider yourself warned."
"What works, what doesn't
The first Jelly Bean ROM is available for you to try. It is an, "alpha", port and not intended for daily use.***
Jelly Bean Android 4.1 Alpha for Samsung Galaxy s2 i9100 - YouTube
"Important:
Before attempting to flash this ROM, please understand the risks to your device, which include the possibility of causing it to enter a bootloop, causing a soft-brick, or potentially even a hard-brick. Understand that the chances of causing a problem which cannot be fixed is very low, but still a real possibility. If something crazy should go wrong, and you end up with a broken device, do not blame anyone but yourself. Consider yourself warned."
"What works, what doesn't