Thread: IMPORTANT! If you want HELP in case of a bricked Garmin device, please follow this

@Butters
I've tried to flash Fenix 3 HR firmware into 6S Pro (with hwid/sw override).
Bad news - didn't help. Good news that it is not completely bricked, still visible at OS as "Garmin USB GPS", however watch screen was completely black, even without that progress bar:

Spoiler: pic

[Only registered and activated users can see links. ]

So, I've flashed it back (i.e. 16.60 gcd converted to rgn). So it is stuck as before (picture above).

Question 1 - I'm wondering whether encryption really matter? If Garmin introduced encrypted firmware and decryption at hardware level then it is just flashed as is.
Question 2 - Maybe the issue is related to RGN tool itself? Currently this cool app is the only way to flash firmware, since official WebUpdater/GarminExpress can't. I suppose they just replacing file at mass storage device without actual memory flush, so that's why they fail when actual mass storage device is not available.
Question 3 - Maybe RGN tool does not work properly with such latest GCD firmware. According to version history at README last supported Garmin device was Fenix 3 HR (released 5 years ago)
v0.94 - Support for fw_all.bin file in fenix3HR and D2Bravo
Is there any chance to reach tool's author for assistance?