See https://youtu.be/Gqpn9ugO1_U for a video demo of the firmware update process.

This update consists of two parts. You need to install both parts!
If you see a warning message about "wrong CPLD", it means you haven't installed both parts.

SETUP
1. Copy the files firmware.xvf and femu.bin to the root directory of your SD card
2. Insert the card into your Floppy Emu, and turn on your computer.

PART 1 (CPLD firmware):
1. Hold down the NEXT and PREV buttons.
2. Press and release the RESET button.
3. Continue holding NEXT and PREV until the firmware update process begins (about 3 seconds).
4. Wait 10-15 seconds for the process to complete. Status LED will be flashing.
5. When finished, the LCD will display "RESULT: SUCCESS"


At this point, you may see a "wrong CPLD" warning. This is normal.

PART 2 (AVR microcontroller firmware):
1. Hold down the SELECT and PREV buttons. Note these are not the same buttons as for part 1.
2. Press and release the RESET button.
3. Continue holding SELECT and PREV until the firmware update process begins (about 1 second).
4. Wait 5 seconds for the process to complete. Status LED will be flashing.
5. When finished, the LCD will display self-test information, and the main menu.

Confirm the new firmware version number is displayed on the self-test/info screen during startup.

