Try unplugging and re-plugging the HDMI cable in again to make sure you have a secure connection. If it’s connected to the correct port, you could switch it to another available port and try again.
If you’re still getting the “No Signal” error or seeing a blank screen, continue to Changing the Resolution in Safe Mode.
If you’re seeing “No Signal,” “Weak Signal,” or a blank screen, it could be because the resolution is incorrect in your PS4 settings. This sometimes happens when you move the PS4 between different TVs, switch between game systems on the same TV, or make a change to your TV’s display settings.
For example, if you have a 720p TV, select 720p. Don’t try selecting something higher than that, or else it won’t work!
For example, if you have a 720p TV, select 720p. Don’t try selecting something higher than that, or else it won’t work!