# 4G-UFI-XX DefaultVendor=0x05c6 DefaultProduct=0x9091 MessageContent="5553424312345678000000000000061b000000020000000000000000000000"
The driver failed to send the mode-switch command. Use Eject the virtual CD drive from File Explorer before unplugging. Then reinstall the driver with admin rights. 4g-ufi-xx driver
: When first plugged into a USB port, the device should appear in "My Computer" as a virtual CD-ROM drive. Running the installer (often named 4G_UFI.exe 4g-ufi-xx driver