account
I am having trouble to download and update apps. iTunes store is showing that I don’t have account while I am trying to log in app store.
See the Apple Support article(s) below.
ASC YouTube for what to do if you can’t make a purchase on your iPhone -
App Store, iTunes Store, or other Apple services - If you can't connect *
Some 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.
Try a forced restart. See the section towards the end of the article.
Reset Device. -
If necessary
Hard reset. -
Do a backup and try a factory reset. Then restore from the backup.
Restore - If you see an error when you update or restore your iPhone, iPad, or iPod. *
Backup - Restore your device from an iCloud or iTunes backup. *