WARNING: Unlike updating the myCNC software, the firmware CANNOT be downgraded after a reflash. The myCNC team recommends reflashing the control board firmware as a last resort only, and recommends seeking an explicit confirmation from the support team that the firmware reflash is warranted in order to avoid issues.

How To update firmware on CNC controllers myCNC-ET1 (revision2)

  To update firmware:

  1. Host PC should be connected to the Internet.
  2. Power up the board (+24V DC power supply) and connect with Host PC via USB.
  3. Close Jumpers J1 (Reset) & J2 on the board.