Preciso Firmware
Firmware Update & Factory Reset Procedure (from version 0.0.3 onwards)
Disconnect the power supply from the Preciso.
Press and hold the right knob (Power).
Reconnect the power supply while still holding the Power knob.
The display will show “MCU UPDATE MODE”.
The device will be recognized by your computer as a USB mass storage drive (PC/MAC).
Drag and drop the new firmware file (.uf2) onto the mounted drive.
Once the transfer is complete, the device will automatically reboot with the new firmware.