I just got a frantic call from a friend, here's the story one of my friends was selling a replacement blackberry that tmobile sent him cause he had upgraded and didn't need it, so i told her about it and she diceided to upgrade her 5 year old candy bar phone to the blackberry
So now when she put her sim card in to the blackberry it asked her for like a POK or PUK code in order to continue, not only that when she tried to put the sim card back in to her own phone the candy bar one, it now asking for the same code.