GpsPasSion Forums - How to upgrade/downgrade the firm. on Mio (Moov+C)
tgg2k, I encountered that ... when I upgrade my C220_NA with a C250 firmware the screen was 'black' all the time. So I realize that the hardware is different (even if they have the same CPU). Anyway for C250 I have two fw.: MioMap3 (http://www.gpspassion....