Now I also have a problem with one Bitburner Fury out of a stack of 4. It's the only board lacking a Micro USB connector (broken). And its not hashing anymore (It did before). LED is blinking green and yellow, but never red. The other boards are delivering 50Ghs.

As it didn't work at all (tried restarting, power cycling, other order of connecting it to the CAN) I flashed the boards with a Pickit3. My first try with the firmware BitBurnerFury_for_bootloader.hex was not successful, the board didn't blink at all after programming it. In my second try, I used BitBurnerFury_for_production.hex and it worked out. Now the board is blinking again, but still not mining. I know that the other three boards all have BitBurnerFury_for_bootloader.hex.

What could be the problem?

- That the firmware of the board without connector is different?
- How can that be solved?
- Is there other firmware that can be flashed with the Pickit3 than the production firmware?

The first hint leading to solve the problem will be awarded 30$ worth of Bitcoin.