Some Rockchip boards (like the RK3399 or RK3588 series) draw more power than a standard USB port can provide.
RKDevTool does not recognize devices in "Normal" booted mode. Your device must be in or Loader mode to be detected. rkdevtool no devices found
Wei pulled up a chair. “Let me tell you something. Years ago, I had an RK3288 board that did the same thing. ‘No devices found’ for a whole week. I replaced cables, reflashed drivers, even bought a new USB hub. Nothing.” Some Rockchip boards (like the RK3399 or RK3588