This feature of the Assistant has only been spotted on the Google Pixel 2 and the Google Pixel 2 XL Android smartphones but is likely to make its way to more devices in the months to follow.
Basically, you can now talk to your Google Assistant about the problems you are facing while using the phone. This could include things like your battery not charging fully, or the colors on your screen appearing distorted, or basically anything that isn’t normal. The Google Assistant will then diagnose the phone and ask you some questions, based on which it will show you a few solutions. This is basically how pre-set troubleshooting guides work on a computer. When all the options in the troubleshooting guide are exhausted, Google can then get you to connect to the customer care over call or over chat. The Google Assistant can now run diagnostics on various features of your phone such as the camera or the Bluetooth functionalities. As of now Google is yet to officially announce this feature or release any documentation on it. This troubleshooting is working for some Pixel 2 users in the US while it doesn’t work for the users based in the UK – it looks like this is still being beta-tested by Google and some users have been provided an early access. This is an interesting update from Google and will help more users be able to fix minor problems on their phones. Source: Android Police