I've just sold a Blackberry and the new owner wants to setup BIS with T-Mobile UK but it's still linked to me so apparently I need to "release" the device?!
I've logged on to Vodafone BIS (Which is who I was with), and it gives me the option to enter a new PIN and IMEI. Will this release it so he can register it with T-Mobile? I don't have another Blackberry to switch it to! Can anyone help please?