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Troubleshoot common issues on your Sprint 4G USB U1901

Last Updated: Nov 16, 2013

Performing the following steps can help you resolve some of the more common device issues that you may experience with your Sprint 4G USB U1901.

  • Check and update device software
  • Check signal strength
  • Verify possible application or computer issues

Find and update your device software

Just like a computer, the software on your phone needs to be updated periodically to make sure you have all the latest fixes and enhancements to keep it running at optimal performance. Check your current version and perform any needed software updates.

Also, be sure that you have installed the Sprint SmartView software from the CD included in the box before you insert the U1901 into your computer.

Ensure signal strength is sufficient

If you are only receiving 1-2 bars, it is very possible you will lose connection or occasionally not be able to connect. You need 2 or more bars for a good connection. Try using your U1901 in a different location to gain increased signal strength. You can also try using the U1901 specific dual-connector external antenna designed and certified for this device that is sold separately.

For a map of coverage in your area, use an alternate Internet connection and go to the Sprint Coverage Tool at www.sprint.com/coverage, enter your ZIP code and click Go.

If you are having issues connecting to 4G in a building or home, keep in mind that at this time, 4G USB devices are primarily capable of getting the best service near an exterior wall or window. To potentially resolve in-building coverage issues, you may have to use the device in other locations within the building to see if your coverage or signal improves.

Check for conflicting applications or computer issues

Make sure that applications such as ActiveSync, HotSync, WinFax and/or other connection managers and other WiMAX software are not running in the computer's System Tray (the icons located by the clock on the Windows taskbar) while using the Sprint SmartView software. If they are, try to close those applications.

Sometimes your computer can be having an issue that prevents your U1901 from working correctly. To check for this:

  1. Remove your U1901 from your computer
  2. Reboot or restart your computer
  3. Once it comes back up, restart Sprint SmartView and reinsert your U1901

If you are still having issues, you should try inserting your U1901 USB Modem in a different USB port on your computer.

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