Restore from a recent WhatsApp backup on Google Drive or iCloud
Reinstall WhatsApp and verify the same phone number
When prompted, tap Restore to recover chats from backup
Check your phone’s local WhatsApp backup folder on Android
Use a file manager to rename an older local backup file to the latest backup name
Reinstall WhatsApp and restore from the local backup during setup
Restore your device from a full phone backup if WhatsApp data was included
Ask the other person in the chat to forward or screenshot the deleted messages
Check archived chats in WhatsApp
Check linked devices if the chat is still available there
Use third-party recovery tools only if you trust them and understand the risks
Enable automatic chat backups to prevent future loss