Centroid Community CNC Support Forum

With the miraculous help of tab completion and a healthy bit of carelessness via the console, mpucomp.exe overwrote mpu11.hex and not mpu.plc. CNC11 then loaded this bad firmware upon restart and now my mpu11 is not booting.

Restoring mpu11.hex from an earlier backup and restarting CNC11 does not seem to be much use. Only the 5V LED is on.
Since the board is not available via ethernet, I assume I will need to rescue things by interfaceing with the board over a serial connection. Can someone please provide instruction and the pin-out I may need.

We can send you a boot stick or you can send the board back for repair. Please contact tech@ajaxcnc.com for details.

Last night I received the UPS tracking number for the boot stick. Thank you.

Thank you. The boot stick did the trick.