: The unit runs on Windows CE 6.0 , allowing for some internal file exploration if connected in mass storage mode.
Yes. Your device is now in a mixed state (old firmware with exFAT drivers partially installed). This can lead to corrupted storage after 3–5 power cycles. Retry the update using Garmin Express in safe mode with networking on Windows or safe mode on macOS. garmin 4nsf update
The exFAT driver and new GPS filtering algorithm require recalibration. Expect 10–15% faster battery drain for approximately 3–5 full charge cycles. : The unit runs on Windows CE 6