Tone Board v1.02 Firmware

Khadas Tone Board DFU 2019-03-19 Upgrade Notes:

  1. Upgraded the XMOS firmware version to v1.02.
  2. Fixed issue with Tone Boards getting bricked after firmware upgrading.

Firmware v1.02 Download Links:

  2. Google Docs (Alternative)

Upgrade Instructions:

Known Issues:

  • Firmware failed to be upgraded via Mac OS X.
  • Bricked boards may need more preparation before flashing (refer to picture).


  • Check USB-C Cable
  • Check USB Port
  • Check Connections
  • Check Computer
  • Check Windows Driver [Normal] [For Upgrading]

Max Supported Sampling Frequencies:

  • PCM: Up to 384KHz @ 32bit
  • DSD: Up to DSD256 @ 1bit

Finding Out Firmware Version:

You can find out the firmware version using the “Firmware Upgrade Tool for Windows 10”.