Whether it be display controversy with the XL model, clicking/hissing noises with its smaller brother, or defective microphones across both handsets, to say that Google's latest and greatest has been faced with a bit of trouble would be an understatement.
The Google Pixel 2 and the Pixel 2 XL can now be rooted using Magisk. Then Google Assistant won't work. Google is yet to come out with a fix for the issue. Interestingly, a few Nexus 6P users are also reporting the problem after upgrading to Oreo. One of the users wrote on the forum, "I am not sure why, but the Pixel 2 XL screen flashes when unlocking (fingerprint and lock button), when the screen wakes up because of notifications, when the screen dims and the phone locks, and when manually locking". A lot of users have tried disabling adaptive brightness on the Pixel 2 XL, but the issue seems to persists. According to one user, blowing air in the speaker brings back the microphone.
For some Pixel 2 and Pixel 2 XL users, the microphone malfunction issue can be fixed by blowing up in the speaker which may sound old school but until Google responds, this may be the best bet. However, the fix is not a permanent one and users might have to replace their devices. I was able to replicate the issue by blowing into the bottom speaker. Yes.
That said, even older and lower-end smartphones could net you at least a 25% discount, perhaps even 35%. In our opinion, this could very well be a hardware problem rather than software.
The big problem appears to be the screen, which has been subject to reports of screen burn, usually a sign of a cheap display, a black smear on the screen, usually the sign of a cheap display and a bunch of other issues that are... usually the sign of a cheap display. The software update specifically addressed various screen issues such as a more saturated colour option and a protection against screen burn-in.