Hi, i recently bought a 2nd second-hand gt540, it was bog standard (running 1.6) apart from being network unlocked. It started with a Vodaphone flassh screen so im guessing it started as a contract phone at some point... When i looked through it, it still had the previous owners data and settings on it so without thinking i reset it to factory settings just thinking it'd wipe it clean etc. The phone rebooted and my o2 SIM wasnt working anymore because the network was locked back onto Vodaphone... Sooo i've emailed Vodaphone about getting the NUC code and in the meantime i upgraded it to the same OS as my main phone (details to the left under my avatar) Vodaphone sent me the NUC and the 2945#* USSD code to get into the security menu of the phone but the USSD code doesnt work. Could this be because i changed the OS to 2.3 - and rooted obviously -? Also if this is the case is the phone easy to get back to the official OS? Please help! :-/ P.S. Basically i can't get into the menu to enter the unlock code.