You can access the Recently Deleted album in Photo Vault. The Recently Deleted album keeps the deleted photos for up to 30 days. If you delete your photos over 30 days, these photos will be permanently removed from your iPhone.
To restore permanently deleted photos on your iPhone, try using the backup. The prerequisite is that you've backed up your iPhone to your Mac before.
The steps to recover the deleted photos from the backup:
- Connect your iPhone to your Mac.
- Open Finder on your Mac.
- Select iPhone from the Finder sidebar (Under Locations).
- Click Restore iPhone.
- Click the Restore button on the pop-up confirmation window.