i was recently updating my OS for my galaxy S2 yesterday. during the update process. i accidentally switched off the phone and when i restarted my phone, the sscreen showed "SAMSUNG GALAXY SII GT-I9100G". and the screen was just displaying that eversince. i tried to remove the battery and fix it back in but didnt show any other results. my guess is i think my OS got deleted during that process. how can i solve this problem?