Rkdevtool No Devices Found Info

Some cheap “Rockchip” boards use cloned or mismarked chips. Their USB PID/VID might not match Rockchip’s standard values. In that case, you must manually edit rkdevtool.ini or compile rkdeveloptool with custom VID/PID.

Ensure you aren't using a "charge-only" cable. rkdevtool no devices found

Sometimes Windows uses a generic driver because it doesn't recognize the Vendor ID. Some cheap “Rockchip” boards use cloned or mismarked