This instruction helps you to enable VoNR (Voice over 5G New Radio – Phone calls over 5G-networks) support on your Qualcomm device. By default this is disabled To use VoNR your network must support 5G SA (Standalone).
Download ZIP package and extract to your computer below. It include nvitems to enable VoNR.
Then open EFS Explorer on your computer and navigate to /nv/item_files/modem/mmode.
Right click to directory and use Copy item file from PC. Don’t drag and drop!
Wait a moment while files copied to modem. This will take some time.
After copied, reboot your phone. You can check VoNR support in UE Capability Information eutra and nr message. To see VoNR support you must have SA enabled on your phone. Here instruction to enable 5G SA on OnePlus 8/8Pro.