Check the phone’s Recently Deleted or Trash folder in the Gallery or Photos app
Restore photos from Google Photos, iCloud Photos, or another cloud backup
Check file manager apps for hidden or backup folders
Restore from a local backup made with the phone’s backup tool
Connect the phone to a computer and check for synced photo backups
Use a trusted photo recovery app from the official app store
Stop using the phone immediately to avoid overwriting deleted photos
If the photos were on an SD card, remove it and scan it with recovery software on a computer
Contact the device manufacturer or service provider for backup recovery options
Use professional data recovery services if the photos are important and not recoverable through normal methods