I'm referring to my BT telephones ref: BT 6600 Trio which suffer fom a disappearing screen leaving just a blue blank area. Others on this site have suffered the same fault, but nobody can solve the problem. Even BT maintaining a silence over this and nowhere do they offer a response. I refuse to use the premium rate call line to them!
Hi @colinboast and thanks for posting.
I moved your thread to the devices board as yo0u'd posted on the BTTV board (which is why @NeilO replied with that information). Can you try the following and let me know if it helps?