Preciso Firmware
Firmware Update
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.
Download the Firmware.
The file needs to be copied into the “mass memory”.
After a few seconds, the device will automatically restart once the update is complete.