- If your FAT partition is corrupted, format it from the System menu.
- Activate the USB disk and copy the file DM42-3.7.1.pgm https://www.swissmicros.com/dm42/firmwa ... -3.7.1.pgm to the root folder of the DM42 FAT partition
- In the DMCP Menu choose to load the program
- Run the program
- Only if it says something is wrong with the QSPI, you would need to copy the file DM42_qspi_3.x.bin https://www.swissmicros.com/dm42/firmwa ... pi_3.x.bin to the FAT partition and choose to load QSPI from FAT