WW-15.2016.1901.339: Download ASUS ZenFone Max Pro M1 January Security Update
After Zenfone Max M1, Asus has started seeding Android 8.1 Oreo-based WW-15.2016.1901.339 software update with ZenUI 5.0 and January 2019 Security Patch to it’s very popular Asus Zenfone Max Prom M1.