First update to Version WW-15.2016.1902.340 Update to Version WW-16.2017.1905.053 Update to Version WW-16.2017.1906.055 Update to the latest firmware Version WW-16.2017.1908.058 Firmware download page: https://www.asus.com/Phone/ZenFone-Max-Pro-M1/HelpDesk_BIOS/