Hope sony developer to return volte option for sony xz premimum HK vesion

[Simonkjl]

When updated xz premimum to andriod 8.0, found no option for volte which existed in android 7.1, this function is very useful, hope sony developers can return this function for xz prenmimum dual sim HK version

[Lord_viridis]

Did you flash another regions firmware or just apdate?

[Simonkjl]

Just update andriod8.0,no reflesh other region rom or oem firmware

[Qatrium]

@Simonkjl

Try to find it in Settings -> Network & internet -> Mobile network -> Enable VoLTE.

[Simonkjl]

Already tried,can not find enable volte option at andriod 8.0