: When the device times out of FEL mode, it will vanish from Device Manager. To fix this, you must be ready to perform the driver update or flash operation immediately upon connection. If it disappears, simply unplug the device, put it back into FEL mode, and reconnect it to restart the process.

, a Chinese semiconductor company known for producing System-on-Chips (SoCs) used in budget tablets and IoT devices. : Specifically identifies the sunxi SoC OTG connector while it is in FEL/flashing mode. DeviceHunt

Interfacing with development boards like the Orange Pi or Banana Pi. Troubleshooting Tips Cable Quality:

While holding that trigger button, connect the USB cable to a on your motherboard.