Understand what the LED lights on your Sprint 4G USB U1901 mean

Last Updated: Nov 16, 2013

Your Sprint 4G USB U1901 has LED lights that help you know what your device is doing.

If the LED is:

  • Off - No power or not connected
  • Solid Green - Found a 4G Network and is ready to connect or is connected to a 4G Network and able to send and receive data; data session is connected
  • Blinking Green - Data is being transferred
  • Solid Red - You are either disconnected or in an area with no available network service

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