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UltraNEXUS-HD Won't Boot, Power on, or the Front Display is Frozen

Here are some items to check. This covers the UltraNEXUS-HD, UltraNEXUS-HD Blade, UltraNEXUS-HD X2 and X5, UltraNEXUS-HD FLEX, and UltraNEXUS-HD CAST.

UltraNEXUS-HD Powered On

Make sure the unit is powered on and running.
  • The front panel display should have the date and time ticking and not frozen.
    • If the display is frozen, try turning the power off using the switch on the back of the unit, then power it back on.
    • You could also try powering on with all USB drives detached from the rear panel.
  • If there is no display, make sure the power source is working and the power cord is good.
    • Verify that the power cord is connected securely to the back of the unit.

Front Display Stays on Start-Up Message

If the front display is stuck on the start-up message ("LEIGHTRONIX, INC") for more than 5 minutes (or dark in the case of a Blade unit), check the following:
  • Confirm that the ethernet ports on the front of the UltraNEXUS-HD light up when an active network ethernet cable is plugged into the port.
    • If they do NOT light up, the UltraNEXUS-HD may need to be repaired or replaced. Contact LEIGHTRONIX Support, saying ethernet does not light up.
    • If the ethernet lights DO light up, try the next procedure.
  • Try reseating the SD card.
    • Power the unit off using the power switch on the back.
    • Reseat the SD card from the front panel.
      • Gently press it in, and it should pop out. Note the contacts face upward.
      • Gently press it back in until it clicks. It should be flush with the front.
    • Power the unit back on with the power switch on the back.
    • If the UltraNEXUS-HD still does not boot with the SD card seated properly, the SD card may need to be replaced. Contact LEIGHTRONIX Support for an SD card.