Hello, I’ve been trying now for a while to sign in to my Apple ID in the App Store yet it keep coming up with the message “could not sign in” or “authentication failed”. What do I have to do to fix this error. Thanks.
iPhone X, iOS 13
Do you have access to another WiFi network where you can try? That has worked for several people.
Try a restart.
Restart your iPhone, iPad, or iPod touch
Try a forced restart.
If necessary
Hard reset
Do a backup and try a factory reset. Then restore from your backup.
Backup - Restore your device from an iCloud or iTunes backup
Apple ID sign in
