GUIDE Enable VoLTE [ZF8]

[techinbermudas]

The commands to make the volte/vowifi option in settings show permanently across reboots on Asus phones has changed from previous years on the Zenfone 8.

To temporarily enable the toggles in setting type the following sequence into your current default dialer:

Code:

*#*#3642623344#*#*

Afterwards you should be able to check for volte/vowifi functionality. However these settings will not persist across a reboot.

On the Zenfone 8 the following commands can be used after obtaining su elevation in an adb shell or in terminal on the phone to make the options permanently visible across reboots:

Code:

setprop persist.dbg.volte_avail_ovr 1
setprop persist.dbg.vt_avail_ovr 1
setprop persist.dbg.wfc_avail_ovr 1

After setting the props do a full reboot. You should be able to see the settings now.
Please note that this will enable only the option in settings in case it is hidden. It will not make volte/vowifi work, if the phone does not support it.
Asus can't enable the option if the carrier doesn't verifiy/grant asus permission to do so. Testing this is a very tedious process.

If VoLTE/VoWIFI is not working for you after toggling it on in settings, this means there's no config file for your carrier yet.