Can anyone tell me in simple terms how to upgrade my system from 1.0 to 1.1 manually? I am currently running RC8 in the UK but on 02 (not T-Mobile) - my phone is unlocked. If i upgrade will it lock me out of my sim? Im not that bothered about V1.5 - i dont think its available for me yet. 1.1 would be good though, then i can see all the apps on the market, which i cant currently do.