Deleted all Contacts on IPhone XR when deleted cardDAV account

Hi kt208,

To recover that cardDav account would require knowing at least what service/server/account it was for, so that you could attempt to regain access to said account and reconfigure that on your device. Without any of that information, the account may have been stored in a backup as it's not listed as an exclusion at Backup methods for iPhone, iPad, and iPod touch. That page mentions data stored in other locations is not included in the backups, but that data and settings are.

Use Locate backups of your iPhone, iPad, and iPod touch to verify the availability of backups preceding the date or time that change was made. If available, you may be able to restore your device to factory defaults and then recover the data included in that backup in the hopes of restoring the account settings.

Regards.

Hello kt208,

Thanks for posting in the Apple Support Communities. We're happy to look into this with you.

If you'd like to see if the contacts previously on your iPhone were from your Google account, you'll simply need to select this in your settings to enable and sync them back to your iPhone. Full details can be found here: Use other contact accounts on iPhone - Apple Support

Until you've had a chance to fully review the article, you can try going to Settings > Contacts > Accounts, select the appropriate account and sign in as required.

Best regards.

kt208,

To create a CardDAV account, we recommend that you follow the steps here: Use other contact accounts on iPhone - Apple Support

To perform the recommended troubleshooting steps via the link above, complete the steps in the section titled "Set up an LDAP or CardDAV account to access business or school directories."

1. Go to Settings  > Contacts > Accounts > Add Account, then tap Other.

2. Tap Add LDAP Account or Add CardDAV Account, then enter the account information.

We recommend the steps above because they will show you how to create a  CardDAV account on your iPhone.

Please remember that you'll need to know the login credentials to set up the account successfully. If you don't have this information, you can reach out to the person that initially set up the account for you, or your can see if you can locate the password by following the steps in the link below in the section titled "View saved passwords and passkeys in Settings."

How to find saved passwords and passkeys on your iPhone - Apple Support

1. Tap Settings, then select Passwords. In iOS 13 or earlier, select Passwords & Accounts, then tap Website & App Passwords.

2. Use Face ID or Touch ID when prompted, or enter your passcode.

3. To see a password or passkey, select a website or app.   

* To delete a saved password or passkey, tap Delete Password or Delete Passkey.

* To update a password or passkey, tap Edit.

Please let us know the outcome after giving the above steps a try.

Thanks for using the Apple Support Communities.

Cheers!