The attached USB drive is not compatible with Lightning Server


The USB driver you have plugged could not be read by Lightning Server for unknown (and very rare) reason. 


  • Unplug the USB driver and replug again.
  • If you are using bus powered USB drive (without external power supply unit), please make sure it does not drain more than 500mA/5V power from the host computer or it won't work with any Lightning device.
  • Change to another USB drive and try again.
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