RKDevTool will not see your device if it is simply powered on and booting into its normal operating system. The device must be in a specific flashing state.
If Device Manager doesn't refresh or blink when you plug the board in, the device isn't receiving enough power to boot its bootloader, or the port/cable is completely dead. Summary Checklist rkdevtool no devices found
Using a USB 3.0 port, a USB hub, or a low-quality USB cable can lead to connection instability. RKDevTool will not see your device if it
RKDevTool will not see your device if it is simply powered on and booting into its normal operating system. The device must be in a specific flashing state.
If Device Manager doesn't refresh or blink when you plug the board in, the device isn't receiving enough power to boot its bootloader, or the port/cable is completely dead. Summary Checklist
Using a USB 3.0 port, a USB hub, or a low-quality USB cable can lead to connection instability.