Hi Director,
I think, your Tone1 maybe the firmware not the v2.0 version.
Could try this:
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Install the old version driver
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Use old version dfu tool (The driver file above already contains this tool) to upgrade the v2.0 firmware.
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After upgrade the v2.0 firmware, you can use the new Khadas ASIO dirver and new DFU tool. After upgrade v2.0 firmware, the old version driver and DFU tool not support the v2.0 firmware anymore
Please let me know if that works, thanks.