Update account setting
My devices all say I need to update my Apple ID Settings by signing in again but none of them will let me sign in again How do I fix this
This is a somewhat "new" known issue that … [Apple] is actively working on (see https://discussions.apple.com/thread/251180098). Don't use the possible solution I posted there. No one indicated it worked. And, I can't guarantee a solution, but, see:
How Fix Update Apple ID Settings If It Won’t Go Away https://techzillo.com/update-apple-id-settings/
Update Apple ID Settings On iPhone? What It Means & What To
Do https://www.payetteforward.com/update-apple-id-settings-on-iphone-what-it-means-what-to-do/
Update Apple ID Settings stuck https://discussions.apple.com/thread/7934284.