Does anyone know if I change my phone (problem with all callers sounding like Stephen Hawkins) if I can use a Nandroid backup of it in a new one? I plan to activate, then root and put CWM on it. I would like to just restore than nandroid backup I did on the phone before returning it, but I don't know if it stores any of the internal workings of the phone in the backup, this corrupting a different device?