1. Start by clicking on 'Contacts' in the navigation panel.
2. Next, select the 'Restore' option to recover old contact details.
3. A list of deleted contacts will appear, please review them.
4. Choose which 'Contacts' you wish to restore from the list.
5. After selecting, click on the 'Restore' button to proceed.
6. A confirmation pop-up will appear, click 'Confirm' to finalize the restoration.
7. If there are no deleted contacts, a message will indicate this.