As the title suggests, I have a Samsung S7 Edge device bought from UAE and using in India. Unfortunately, it does not support the VoLTE feature.

What precautions should I take before installing the India Firmware? My Device details are

Model: SM-G935FD
Build num: MMB29K.G935FXXU1BPLB
Baseband Ver: G935FXXU1BPJJ

Please advice in details. Thanks!