It has asked me hundreds of times for my Apple ID and password out of nowhere, I’ve changed both of them, signed out of iCloud and restarted my phone (also countless times), and now I can’t use iMessage, music, or iTunes and the App Store
What happens when you try? Error message(s)? Apple ID disabled or locked?
Apple ID is locked or disabled
If you have changed your password, have you followed the steps in this article?
What to do after you change your Apple ID or password - Apple Support
If necessary, contact iTunes Support. Either use the form or scroll to the bottom of the page in the 2nd link. Follow through the screens to get a chat or telephone option.
Do you have access to another WiFi network where you can try? That has worked for several people.
Try a forced restart.
If necessary
Hard reset
Restarts unexpectedly - If your iPhone, iPad, or iPod touch unexpectedly restart
Do a backup and try a factory reset.
It usually just keeps asking for my id, password, and or Touch ID. I just did a cold restart and it won’t even sign in, it just crashes after saying “signing in to iCloud”
Locked out of iMessage, music, iTunes/App Store
