I recently rooted my phone and I am very new to this. I have a samsung galaxy s3. I rooted my phone just to install titanium backup and freeze/remove bloatware. Now my phone says it has an update. I know I shouldn't use the standard update, and that I need to update radios(?) and the rom. I know to flash a rom I boot to clockworkmod recovery and install from sd card>choose the file, so once pointed to that I think I can handle that by myself. But what about the radios? Also, in searching I read something about OTA, I do not know what that means. When I rooted my phone I didn't lose any data, will I when I flash another rom (the update)? I have a new Ti pro backup today. Also, have I got it right? Boot to recovery, choose the proper rom, done with rom part? Any help would be greatly appreciated, the people here are just the best.