How to disable voLTE carrier check?

[Illuminatus_]

Hi, anyone knows how to disable voLTE carrier check on Android 9 ? The known usdd code *#*#86583#*#* no longer works.

 

[UnlimitedBB]

There's no other way, unfortunately. Xiaomi just killed VoLTE with their pie update for Mi A1. Hoepfully, they should fix this in the next update