Chosen Solution
update greyed out so carried on with recovery’
I am assuming your phone will not fully boot anymore after the update? It is most likely caused by some kind of dual monitoring or display extension app you previously downloaded. If you have your phone backed up, doing a restore will fix the problem. If you have not recently backed up your phone you could try using a program called “3uTools” it is a free program that can be installed on your PC it has an option to restore while retaining users data.