Q
quincc
Guest
I just bought an unlocked Blackberry 8800 from ebay and just received it. But when I put in my t-mobile sim card in it says that the sim card is invalid and will not let me make and receive calls. This is my first unlocked phone, what can I do to get the phone to start working on my T-mobile service. It was originally from the Canadian Provider Rogers. Please get back to quickly thanks.