Your WhatsApp will automatically back up based on the automatic backup frequency you set. You can recover deleted photos and videos from your previous backup files within 7 days. For files older than 7 days, you can access them in an automated backup. In addition, this method requires you to uninstall and reinstall WhatsApp on Android, so you should remember your account and password. Finally, you will lose the latest WhatsApp photos and videos that have not been synced. If you have forgotten your WhatsApp password, you can use this method to get your Whatsapp files back: 1. Uninstall WhatsApp from your Android phone or tablet. 2. Download and reinstall WhatsApp to Android from the Google Play Store. 3. Open WhatsApp Messager and verify your phone number.