The goal was to reawaken the USB interface by replacing the firmware.
After the hint on a possibly mechanically defective USB interface, post # 148, brought no success.
The pictures of the USB interface in #149 . was the hope to achieve an improvement by replacing the firmware.
Since it already has the version 8.80 is an exchange via gupdate.gcd not possible #148.
The error with the RGN_Tool and the 14.bin is really embarrassing me.
My goal was and is not to practice flashing firmware.
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