9.4.1 Manual Firmware Upgrade

If an automatic firmware upgrade fails or, for some other reason, a connection to STK600 cannot be established, a manual firmware upgrade may solve the problem.

Before starting this procedure, make sure the latest Microchip Studio release is installed on the computer.

1. Turn off STK600 and connect it to the PC using the USB cable.
2. Press and hold the PROGRAM button when turning ON the STK600 power switch. The status LED will flash red and orange, indicating upgrade mode.
3. Run atfw as described in the Microchip Studio user guide.
4. When complete, cycle power on STK600.
5. If the upgrade was successful, the status LED turns green. Try to connect to the starter kit with the programming tool in Microchip Studio.