Prepared as mentioed with RMPrepUSB, nothing ...

I think the biggest problem, that my device do NOT appear in Win's Device Manager .... No Bubble, No new device wizard,
can not put it in pre-boot mode, so no USB Mass Storage .... nothing.... nothing happens when I plug it in ....
I don't know this way Updater.exe would do anything with it (I think not.) ....

Other ...
VIRB 's GCD file not supported by RGN Tool or GarminCure3 by kunix