zBitx- Updating the Pico firmware
The front panel of the zBitx has a Raspberry Pico microcontroller. To upgrade the firmware:
1. Download the lastest .uf2 file from https://www.hfsignals.com/index.php/z... to your computer.
2. Disconnect the zBitx power
3. Holding down the Tuning knob, connect a USB cable between your computer and the zBitx's CAT connector.
4. The Raspberry Pico will show up as a flash drive on your computer. Copy the downloaded .uf2 file to the Pico.
5. The Pico should restart with the new firmware as soon as the copying is finished.
6. Remove the USB cable and power up the zBitx.