Open Photos app
Tap Albums
Scroll down and tap Recently Deleted
Select the photos you want to recover
Tap Recover
Confirm Recover Photos
Check iCloud Photos
Sign in to iCloud.com
Open Photos
Look in Recently Deleted
Restore the deleted photos if available
Restore from an iPhone backup
Open Settings
Tap General
Tap Transfer or Reset iPhone
Tap Erase All Content and Settings
Set up iPhone again
Restore from iCloud Backup or computer backup
Restore from a computer backup
Connect iPhone to Mac or PC
Open Finder or iTunes
Select your iPhone
Choose Restore Backup
Pick the backup that contains the photos
Complete the restore process
Check other photo apps
Open Google Photos, OneDrive, Dropbox, or similar apps
Look in their trash or recycle bin
Restore the deleted photos if found
Contact Apple Support if the photos are not in Recently Deleted or backups
