Google pulls March security update for AT&T Pixel 4 units
9to5google noticed that all March security patch builds for Pixel 4 and Pixel 4 XL are listed on Google's website except for the one specifically made for AT&T units. However, Google did release a security update for AT&T Pixel 4 devices yesterday, but since it's not listed on the website, we can assume it's been put on hold.
Google hasn't offered any explanation for the issue, but some AT&T Pixel 4 owners report on Reddit the update broke their Google Pay app. The fault, in this case, lies with Google, not with AT&T, as the Mountain View company hasn't properly certified the build.
If you received the March security patch on your AT&T Pixel 4, you'll probably be met with the following error message: “Your phone doesn't meet software standards.” If that's the case, then you won't be able to use Google Pay until the update is fixed.