You have been working on this since 2020 have you tried calling Garmin or taking the GPSMAP 62s to a local shop.
Seeing that you are not getting anywhere with what you are doing.
I also found this quote from you:
From this post.I flash the cure FW successfully with the quick pre-boot mode. but the device is still not seen by PC.
The pre-boot mode is held shortly during flashing FW and it disconnect.
It seems to be hardware failure.
Thank you everyone for helping.
[Only registered and activated users can see links. ]
So what you are saying is it has a hardware failure or not??????



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