We're currently on the fifth generation of ASUS ZenFone devices, but that doesn't mean that previous models have been (entirely) forgotten. The ZenFone 4 Max has just begun receiving its update to Android 8.1 Oreo, which also includes ASUS's ZenUI 5.0 skin. This is a few months behind schedule, but at least it's here now.

This update carries version number 15.2016.1809.412. There are two release notes, and they don't tell us much:

  • Update OS to Android 8.1.0 Oreo.
  • Update ASUS ZenUI to 5.0.

So if you have a ZC554KL model of the ZenFone 4 Max, keep an eye out for an 8.1 Oreo OTA. ASUS notes that OTAs are sent out in batches, so you might have to wait a couple of days to receive the update.

The ZenFone 4 Max Lite (ZC520KL) is also getting the update to Oreo 8.1 with Zen UI 5.0. Asus says it will take about one week for the OTA to reach all devices.