system software missing

try at yout OWN RISK because your info are poor/little
so as i told you on PM if you want to try:
I put you 3 possibilities solutions
first test TEST1, then TEST2 and finally with the sd
for tests 1 and 2 just connect the garmin to the pc
then transport file 1 or 172201000430.rgn file above the updater file
then a screen opens and check USB Device and then press ok

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