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Display stays black ​

Work through these checks in order. Most black displays are fixed by the first three.

1. Check the display itself ​

  • Is the display switched on, and is the right input (HDMI port) or app selected?
  • Is the player device powered? A stick or mini PC behind the display often has its own power supply.

2. Check the status in Lumicast ​

Open Displays in Lumicast. A display that is online (green) is connected and receiving content; if it is still black, its playlist may be empty or nothing is scheduled right now. Open the display to see what it should be playing.

A display that is offline (grey) has lost its connection. Check the internet connection where the display is. The player keeps showing the content it last received while it is offline, so a black display usually means the player itself is not running.

3. Restart the player ​

Native player (for example a Raspberry Pi with Lumicast OS, Windows or a Samsung or LG signage display): open the display in Lumicast and choose Reboot. The button works while the display is online and only on players that support a remote reboot; otherwise switch the device off and on again.

Browser on a smart TV (for example a consumer Samsung TV with its built-in browser): remote restart is not available here.

  1. Switch the TV off and on with the remote.
  2. If Lumicast doesn't come back by itself, open the TV's Internet browser and go to https://player.lumicast.com. As long as the browser's data hasn't been cleared, the display reconnects without a new pairing code.
  3. To make Lumicast come back after every restart, turn on Autorun Last App, see Samsung Tizen Smart TV.

4. Use the service menu ​

Press M on a keyboard or OK on the remote while the player is showing. The service menu shows whether the device has internet and is connected to Lumicast. Choose Refresh to reload the player, or Clear cache to download all content again.

Still black? ​

Create a support ticket in Lumicast and tell us which device you use, what you see on the display and what you have tried. Support is available on weekdays from 09:00 to 17:00 (Netherlands time); outside those hours and at weekends we help where we can.

© 2026 Lumicast B.V.