LG CreateBoard Core 86" TR3BQ not working? Fixes

Fixes for the most common LG CreateBoard Core 86" TR3BQ problems, from the quickest checks to when to contact LG. Start at the top: most issues are a setting, a cable or firmware.

Quick checks

1. Restart the device: unplug power for 30 seconds, then reconnect.
2. Reconnect the cables, using the ones that came in the box.
3. Update the firmware. How

No signal or wrong input

• Select the input the video bar or PC is connected to.
• Reseat the HDMI cable at both ends and try a certified high-speed cable; long runs may need an active cable or extender.
• Make sure the source is awake and outputting a resolution the display supports.
• Disable HDMI-CEC on one end if the display keeps switching inputs or turning off.

Touch not working

• Connect the touch USB cable from the display to the same computer that sends the HDMI signal.
• Recalibrate touch from the display's settings menu.
• Update the display firmware.

Won't turn on or status light is red/blinking

• Check the power adapter is the original one and firmly connected, and try another outlet.
• Unplug for 30 seconds and power it back on.
• Check the status light meaning in the user guide; a blinking light during startup or updates is often normal.
• If it never finishes starting, contact the manufacturer's support for a recovery.

When to contact LG

If none of this works, the device may need warranty service (LG warranty: 3-year). Bought from us? Contact us and we'll help with the claim.

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All troubleshooting →