How to re-enable Hey Google on OnePlus 8 Pro [SOLVED]
If your Google assistant no longer responds to the “Hey Google” wake command, give this a try:
- Open the “Google” app on your OnePlus phone
- At the bottom of the “Google” app, click the 3-dots “… More” and select “Settings”
- Select “Google Assistant”
- Select “Voice Match”
- Toggle the “Hey Google” slider to “On”
Exit out of the app and voila, your phone should answer to “Hey Google” again!

I hope this helps 👍😉