After gaining root and bonding from there my MPX220 finally bonded. then to get fiie transfer, i had to go to the file mnager, hit menu, send & recieve, recieve bluetooth file and transfer is functional while recieve is active. (will ask you after x amount of time if you would like to deactivate) the only thing i cant do iis use my smartphone to go online with the 770. (on a side note, i tried 2 moto vxxx phones and it says service discovery is not available. anyone able to bond to standard moto phones?)