Reinstall Whatsapp. Tap RESTORE when prompted. Tap OK to confirm your phone number.
Reinstall WhatsApp and tap RESTORE when prompted. The last step is download and Reinstall the version of WhatsApp from Google Play Store on your Android Phone. If not enter the OTP manually and select Next.
To use this method what you need to do is head over to the Bluestacks website and download and install the Bluestacks app on your PC.
Download and install the WhatsApp on your. Press the Home button. Then a prompt will appear to restore chat history. Tap Next and tap on Restore Chat History.