Can anyone here please help me with MTN MMS settings? I recently replaced my wife's crappy Samsung E250 with a SE Z550i, but now she cannot send or receive MMS messages. I did the *123*11# send and also *123*12# send, but still cannot get the MMS working. When trying to retrievea MMS message I get an error message "Download failed. No account. Please check your settings". I now want to manually try and configure this phone. Any assitance will be appreciated.