All customers please make sure when ordering iPhone unlock for O2 UK, handset is verified and confirmed being locked to O2 UK. If you are unsure please do not order, as phone will NOT unlock, and it will result in not getting a refund - therefore please verify handset is locked to O2 UK 100% before ordering - Thanks !!iPhone from O2 United Kingdom instructions: - Send the IMEI to our server - Wait 3 <> 7 days we return the answer \"activated\"- Then, install last version of iTunes - Make sure phone is last version updated by official itunes sw - Connect phone to iTunes with not accepted (not valid) simcard - Wait until itunes detect phone - Now diconnect phone and reconnect after 10 seconds. - Phone Unlocked. NOTE : This is the only \"lifetime\" unlock solution for Apple iPhone as the IMEI is registered as \"Unlocked\" in Apple database. Your phone will always be unlocked even after each new update of your phone firmware !