Causes for Google Assistant to Not Work
There are many reasons why the phrase OK Google or Hey Google may not work when attempting to use Google Assistant. These can range from a phone having no internet connection to the Google Assistant service being disabled on the phone. Below are some common causes for Google Assistant to malfunction:
Phone incompatibility.The phone is offline.The microphone is malfunctioning.Other apps are interfering.
How to Fix Google Assistant Issues
There are several items you can look at to try and fix Google Assistant problems. If you know what to check, you should be able to get it working again on your phone quickly.
Use Skype Echo/Sound test services to test the microphone. Install the Phone Check app from Google Play and run microphone checks. Use the Google Support Hangouts audio troubleshooting steps.
The following apps are known to cause issues with Google Assistant:
Samsung Voice (S Voice)BixbyKingRootAppLock