Ipad Update All Keeps Asking For Password. Close System Preferences then open Mail and try using your account again. You may experience this iCloud login loop bug after an update.
If you see a password field for your account delete the password and type the correct password. Its possible that the App Store app isnt responding like it should and prompting you for this password. Then test and see if you get the same password prompt.
If you keep seeing a red badge in the Settings app saying that you need to update your Apple ID settings you might have recently updated your devices iOS or iPadOS or changed your Apple ID password.
Enter your password if asked and click OK. To fix Apple ID issues open the Settings app tap on General. If there is an iOS update available tap Install Now to start downloading the update. Enter your password if asked and click OK.