Android Pie was publicly released by Google in August 2018, and several OEMs have since then gone on to update several flagship and mid-range devices in their portfolio to the latest update by Google. Asus revealed its Android Pie upgrade plan for its ZenFone lineup, including several popular devices within the roadmap but with no dates. The update seemed to be on the horizon after Asus opened up an Android Pie Beta program for the Asus ZenFone Max Pro M1, but it took longer than expected.
Asus ended up issuing an apology to its fans and customers and promised that Android Pie would be made available to the ZenFone Max Pro M1, ZenFone Max Pro M2, and ZenFone Max M2 by April 15th. True to its word, the update for the ZenFone Max Pro M1 and Max M2 have begun rolling out to devices.
If you don’t receive a notification for the Update, You can manually check it by navigating to Settings -> Systen -> System updates. The update is of 1.5GB with March security patch.
The update for the ZenFone Max M2 (ZB632KL) comes with version 16.2018.1903.37 and brings Android Pie along with an update to Google Mobile Services as mentioned in the changelog. Updates will be rolling out in batches for all of its users, so please be patient if you are unable to download the update on your device. Firmware files for the update have not been officially posted yet, so you cannot sideload it just yet.
Asus has also begun rolling out the update for the ZenFone Max Pro M2 (ZB630KL) as expected. The update comes with version 16.2017.1903.061 and includes March 2019’s security patches alongside Android Pie for the device.