uncertified

Google Duo and Messages will not work on uncertified devices soon

Duo and Google Messages are among the best communications apps Google has ever released, so it's no surprise that they're incredibly popular even among people whose phones ship without Google apps. (adsbygoogle = window.adsbygoogle || []).push({}); Unfortunately, it looks like those uncertified phones may soon no longer be able to run Duo and Messages. XDA