To update the firmware on Preciso, first download the latest UF2 image.
Then follow these steps:
Unplug the power supply
Press and hold the right knob
Plug the power supply back in
As soon as the “MCU UPDATE MODE” page appears on the display, release the knob
Connect the device to a PC/Mac via USB; it will be detected as a mass storage device
The firmware file needs to be copied into mass memory
After a few seconds, the device will automatically restart once the update is complete
