Hi, I have already tried to contact you via another post.
I have a Titan miner that currently does not see the cubes. I have had the same problem already and I just replaced the Raspberry Pi. Now this does not work.
The Pi still works, I can ssh into it. Maybe just the GPIO are defective, maybe the controller board is defective.
I have bought GenTark's firmware but it does also not work.
Another problem was, that there are multiple versions of the RPI B+. I did upgrade the system and then I could boot with the replacement RPI, but it still does not work. So it is probably the Controller board.
When I look at the logs I see an error message I2C lock failure #1 #3 etc.
Do you have any suggestion what to do? Or could you repair it?