I had to update all my batteries after the firmware update as the assistant showed firmware mismatch after I put my next battery in just to check if needed--
So all the batteries required this update--
Jack
OK, a little difference here, but I presume the message for the mismatch came from the Go4 app when connected to the bird -- is that right? If so, then your battery update procedure would be to connect up, do the battery update from within the Go4 app, then power down and swap batteries -- repeat ... is that right?
Brian