What to do after [or before] you change your Apple ID email address or password - https://support.apple.com/HT204071 - "After you change your Apple ID email address or password, you might need to update your sign-in information with any Apple services you're using." E.g., if you are getting persistent sign-in messages.
I bought a phone for my grandfather and the Apple ID account keeps getting disabled every time I log in and trying downloading an app. I reset the account password and it happens over again. How do I fix this?
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User profile for user: samfromhilton
Question: How do I make it so my account stop getting disabled?