Hi, we have over 2000 devices but 500 are refusing to update Google Chrome. We have tracked the issue down to the fact that something has pulled the default browser to something else meaning that Chrome needs to be re-enabled in the Playstore (as per screen below) before It will update itself

Connecting to each phone manually and clicking "Enable" makes the updates flow again but I don't fancy doing that on 50 phones. Any thoughts on how this coulkd be automated ???