What should I do if my phone address book contacts are gone?

You can use the data recovery tool to retrieve contacts in the address book. This operation takes the data frog apple recovery expert as an example:

Step 1: Install the recovery tool on the computer, then connect the mobile phone to the computer with the data cable, and click "Start scanning".

Step 2: After scanning, find the contact person who needs to be restored on the scanning results, and click "Restore" or "Restore".

Tips: The above methods may not be restored. It is recommended to back up the mobile phone data frequently, so as to facilitate the recovery of data in case of accidental deletion or mobile phone failure.