Asus has released the official 4.21.40.74 Android 6.0 Marshmallow update for its ZenFone Zoom (ZX551ML) via OTA. You can download the full update package of this firmware here.
Latest Firmware, ROMs, and iOS Beta Downloads
Asus has released the official 4.21.40.74 Android 6.0 Marshmallow update for its ZenFone Zoom (ZX551ML) via OTA. You can download the full update package of this firmware here.
