Hi guys, would appreciate some help on this, have already asked for help and the answers were useful, but would involving rooting my phone which I don't want to do. I have a Mac and I need to update the firmware on my phone, I am on KE3 just now. I can't seem to do this through Kies, and I tried it on my mum's PC and Kies kept not responding so couldn't do there either... I have been having problems with my SG2 randomly rebooting itself, I thought the problem was a cover I had on it, maybe overheating it, taking it off worked for a few days but then when I unplugged it from my charger earlier it did the same thing. A previous poster advised that a firmware update may solve this, have spoken to my provider T-mobile who advised to take into a store but they advised it can take up to 7-21 WORKING days for the phone to be returned! Seeing as the phone is only 2-3 weeks old I feel this is a bit out of order. Anyway, any help or guidance would be appreciated.