I would guess MVI screwed up the programming of the radio, they took a 2015 model radio I sent them and dumed it down to a 2013 firmware
this took away the backup guide lines the radio already had and put buggy software on the radio, it hangs up all the time
the MVI people are completly arrogant IMO---totally ignored numerious messages about putting the improved firmware on the radio
Best bet with all this is send the radio to somebody who trully understands how to program it or buy access to the GM tech site for 3 days--$65 and program it right yourself
this took away the backup guide lines the radio already had and put buggy software on the radio, it hangs up all the time
the MVI people are completly arrogant IMO---totally ignored numerious messages about putting the improved firmware on the radio
Best bet with all this is send the radio to somebody who trully understands how to program it or buy access to the GM tech site for 3 days--$65 and program it right yourself
