I couldn`t find any information about 5 GHz band WiFi support in the device specifications.
I switched OFF the 2,4 GHz band on my router and left ON only 5GHz, then my Acer Liquid X2 lost a WiFi signal. On the same time other my devices continue to work with 5 GHz, so there is no doubt that the router is OK.
In the Engineer menu of Acer Liquid X2 I found this page, here stated that 5 GHz IS supported (I made this screenshot while the smartphone was connected to 2,4 MHz WiFi, so don`t pay attention to the Wi-Fi state and Wi-Fi icon in the upper status line).
![Screenshot_2016-05-20-20-30-21[1].jpg Screenshot_2016-05-20-20-30-21[1].jpg](http://acer.i.lithium.com/t5/image/serverpage/image-id/12419iC3F88FEE210C96F0/image-size/medium?v=v2&px=-1)
So how can I switch ON the 5 GHz support?
Build number is Acer_AV0l0_S59_1/037.00_AAP_GEN1.