Just downgraded to 3.1.3 was on 4.2.1 as I need an unlock BB is 06.15.00. Backup and running on 3.1.3 ok, plugged it into iTunes first thing it came up with was telling me the iPhone was unlocked...which I was surprised at. But ive tried a couple of differant SIM and its sitting on no service. The only thing ive not done is registered the iPhone in iTunes (PC) as its a friends iPhone which iam trying to sort out for him. Can anyone offer any advice? EDIT, and each time I reboot, I get a message saying 'waiting for activation, this may take some time'