Drivesmart65 flash the fireware?   

Drivesmart65 flash the fireware?

Postby willingzhubaby » Thu Sep 07, 2023 7:57 am

i have the B306500.update file(old file sw 119)

my garmin upgrade the fireware sw10.20

i want to downgrade the fireware?

how can i do?

how to open the pre-boot ?
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