I can not use App Store because after entering iTune store password it says authentication failed even if my password is correct. I tried few things but they did not fix my issue: updated latest iOS, checked that date and time is correctly set, signed out then back signed in from my Apple account, reset phone, freed space on my iCloud storage and I even changed my Apple password.
Please help.
Thank you for the tips. I’ve tried all of them and only factory resetting my phone helped.
You are welcome.
If you have changed your ID or password, have you followed the steps in this article?
What to do after you change your Apple ID or password - Apple Support.
Some other things you can try. 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
Do a backup and try a factory reset. Then restore from your backup.
Backup - Restore your device from an iCloud or iTunes backup.
iTunes store authentication issue
