After that, if it doesn’t fix it, and you are using a known-to-be-good High Speed HDMI cable running in free air well away from other cables directly from YouView box to TV, the only further thing that I can think of for you to try is a Maintenance Mode reset:- https://support.youview.com/youview-box/box-and-remote/using-maintenance-mode/
Read the instructions there carefully for what you need to do before and after the reset.
Options 2 and 4 will preserve all your recordings; try one of those. Good luck!
‘Have nothing in your houses that you do not know to be useful, or believe to be beautiful’ Wm Morris
Comments
I suspect you mean a YouView box, as you are reporting a YouView error message? 😛
You have worked through everything on this page?
https://support.youview.com/youview-box/error-messages/fix-for-yvm607/
If not, please do so now.
After that, if it doesn’t fix it, and you are using a known-to-be-good High Speed HDMI cable running in free air well away from other cables directly from YouView box to TV, the only further thing that I can think of for you to try is a Maintenance Mode reset:-
https://support.youview.com/youview-box/box-and-remote/using-maintenance-mode/
Options 2 and 4 will preserve all your recordings; try one of those. Good luck!