One of my Verve 500 phones screen has faded. You can just about see black lines going up and down. I have replaced the battery but that doesn't seem to have worked.
How can I rectify the screen or do I have to replace it..
Welcome to this user forum for BT Residential phone and broadband customers.
There should be a BT product support number in the user manual for you to call, but I expect that you would have to replace the whole handset.
Look here https://store.ee.co.uk/help/returns-and-refunds/technical-helplines