Loading...

On entering data into this search field, the content below will update.

Troubleshooting TV with no signal, no picture, or black/blue screen

Learn how to fix issues when your TV isn’t showing a picture, shows a blue or black screen, or has a “no signal” message.

Troubleshooting steps

  1. Make sure the TV and your TV Box are plugged into working power outlets.
  2. Hand-tighten all cable connections so they aren’t loose.
  3. If you’re using an HDMI cable, confirm that it’s plugged into the correct ports on the TV (HDMI1 or HDMI2) and the TV Box (HDMI out).
  4. Turn on the TV and the TV Box.
  5. Confirm that the TV is set to the correct input. This is the port on the back of the TV that your HDMI cable is plugged into. For example: if your HDMI cable is plugged into the HDMI 1 port on your TV, the TV input you will select is HDMI 1. 
  6. If you've tried the steps above and there’s still no picture:
    • Press Exit > Exit > Exit > 720 on your Xfinity remote.
      • This sets the resolution to 720 and should bring the picture back.
    • To change the resolution again, press the xfinity button on your remote. Then go to the Gear Icon (settings) > Device Settings > Video Display, and choose the resolution you want.

If you still have issues, the Xfinity Assistant can help. It can walk you through troubleshooting steps, schedule an appointment, or connect you with an agent. Select the Xfinity Assistant or scan the QR code with your smartphone to get started.

Xfinity Assistant QR code.

Additional information

Visit our Online Support Center to find common solutions.

QR code

The easiest way to activate, manage, and troubleshoot your Xfinity experience is with the Xfinity app! Get 24/7 real-time support, pay your bill, view plan details, get outage updates, and more. Download the free Xfinity app, or scan the QR code with your smartphone.

Need additional support? Ask Xfinity Assistant.

Was this page helpful?

Didn’t find what you’re looking for?

Ask Xfinity Assistant
Visit Our Help Communities

Messenger

Connect with us

Xfinity Support Forums

Visit Forums

X

Send a message

Reddit

Browse Reddit