How To Fix VoLTE Not Working After Porting In Mediatek Custom Rom
Many of you might face VoLTE Not Working After Porting a Custom Rom. So here is a quick fix for it.
Caution: I am NOT responsible for any
damage caused to your device. Flash at
your own Risk!
Volte fix for Custom ROMs
Edit boot.img and build prop according to stock or latest MultiROM
Replace files from ur stock ROM and flash
Note:
First only flash patch 1 if it does not fix VoLTE in mtk custom rom than try patch 2
Before applying patch make necessary edits in buildprop and bootimg

Patch 1:

Only Flash Patch 2 if Patch 1 did not work.

Patch 2:

Note:
1. Only OEM ROMs support volte eg. Miui, VibeUi, ZenUi, etc
2. No VoLTE in compiled ROMs for mtk

Caution: I am NOT responsible for any damage caused to your device. Flash at your own Risk!