...inserted my Sim card and a code? hello,please i bought an unlocked phone(sony ericsson p1i) from uk via ebay.i inserted my Sim card and a code is demanded.i read the 'help' n it reads''at power on-the phone lock code is requested or when a sim is changed''.i contacted the seller n he said no such settings what so ever is on the phone n that he did not used any code on it.can somebody pls help me thru.n if i may ask,can i reinstall the operating system of the phone n how?tnx in advance