Preciso

Firmware Update

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

v1.3.3
Fix for DAC filter selection with SPDIF inputs

v1.3.2
Fix for device not starting up after connecting the PSU in some rare circumstances
Fix for IR receiver stuck in some rare circumstances

v1.3.1
Add transition from standby to active when pressing the MUTE button on the IR remote

v1.3.0
Add channel swap option for I2S and/or DSD

v1.2.4
Add NOS mode option (active only on PCM input)
Add support for Volumio Remote
Fix pop noise issue on track skip for USB input

v1.0.3
First public release