Asus Zenfone 4 Max has received an update that brings it some interesting improvements. Specifically, we refer to the specific model ZC554KL and tits new firmware version 14.2016.1711.215.
Inside the changelog, there is an implementation of the new ZenUI 4.0 user interface, the TIMES and VoWiFi mode and also improvement in the double-touch functionality to awaken the screen. The upgrade is currently being released and will be required at least a week before it is made visible on all compatible devices.
You can try to manually verify the presence of the update through the smartphone Setting ->About -> System Update, to update manually.
We remind you that the Asus Zenfone 4 Max is currently offered at the best price of $199 only on Amazon.com. The device is powered by a Snapdragon 430 octa-core processor, coupled with a 3GB of RAM and 32GB of internal storage. It features a 5.5-inch Full HD (1920 x 1080) display, a dual rear camera with 13MP and 2MP image sensors and a huge 5,000mAh battery.