Samsung 50 Inch UE50CU7100KXXU Smart 4K UHD HDR LED TV

This message will show when the TV is not receiving a signal, either through the aerial or an external device connected.

Ensure you have selected the correct input source for viewing (for example, HDMI if you have an external device connected to the TV via HDMI). If you are using an aerial to watch the inbuilt Freeview channels, change the input source to Digital or DTV to view these channels.

If you have purchased a universal remote, it should come with an instruction guide as to how to pair the remote with the TV. It will often have a list of codes for different brands. Locate the codes for this brand of TV, and follow the instructions to pair together.

Check that all connections are fully inserted on both your TV and viewing source (for example, an aerial or a Sky box). If the issue persists, please try the following.

1. Unplug the TV from the wall and disconnect any external devices.
2. Hold down the manual button on the unit for 30 seconds (if unsure of location please refer to the user manual).
3. Plug the TV back into a mains socket.

Please see how to perform a power reset here: 

If this has not resolved the issue, please contact the support team using the details on this page.

If the TV is missing some channels, we would recommend carrying out an automatic channel scan to tune in these channels, and if necessary trying a First Time Installation or Factory Reset through the menu.

If this has not resolved the issue, you can check for any issues with the signal in your area using the Freeview website here.

You can use a digital aerial on this TV to access Freeview channels. This can be an external aerial that has been fitted by an engineer, or an indoor aerial that you can purchase and fit yourself.

If purchasing an indoor aerial, we would recommend checking the distance from the transmitter as aerials will have a different range specified on the product box. You can check the distance from your nearest transmitter using the Freeview coverage checker here.

This should help to identify what aerial you will need, and what distance range would be required for your location.

Ensure the TV is plugged into a mains socket and, if necessary, try an alternative mains socket. An extension lead does not always supply the TV with sufficient power, so the TV may not be able to turn on fully if connected this way.

We would recommend trying the below steps:

1. Unplug the TV from the wall and disconnect any external devices.
2. Hold down the manual button on the unit for 30 seconds (if unsure of location please refer to the user manual).
3. Plug the TV back into a mains socket.

Please see how to perform a power reset here: 

1. Press the Home button.
2. Navigate to Settings.
3. Navigate to All Settings.
4. Navigate to Connection.
5. Select Network.
6. Select Open Network Settings.
7. Choose Wireless or Wired for connection type.
8. Follow the onscreen instructions to establish a connection.                       

Note: Ensure the digital aerial is connected securely into the TV before scanning.

1. Press the Menu button.
2. Navigate to Settings.
3. Navigate to All Settings.
4. Navigate to Broadcasting.
5. Navigate to Auto Tuning Settings.
6. Select Auto Tuning.
7. Follow the onscreen instructions to continue the channel tuning.   

1. Press the Menu button.
2. Navigate to Settings.
3. Navigate to Support.
4. Navigate to Device Care.
5. Select Self Diagnosis.

Follow the on-screen instructions to diagnose issues with the TV.

 Note: DO NOT turn off the TV's power until the update is complete. The TV will turn off and on automatically after completing the software update. Video and audio settings will be reset to their defaults after a software update.

Update through the network:

1. Press the Menu button.
2. Navigate to Settings.
3. Navigate to Support.
4. Navigate to Software Update.
5. Select Update Now.

Update through a USB device:

1. Press the Menu button.
2. Navigate to Settings.
3. Navigate to Support.
4. Navigate to Software Update.

After downloading the update file from the Samsung website and storing it on a USB device, connect the USB device to the TV to update.

Update the TV automatically:

1. Press the Menu button.
2. Navigate to Settings.
3. Navigate to Support.
4. Navigate to Software Update.
5. Select Update Auto Update.