I have a galaxy s7 bought from uae.I need to enable volte services for reliance jio in india. It was having android noughat 7.0 uae version. I tried to install indian version noughat 7.0 which gave me an error of "SW VER CHECKFAIL....... "
after googling a lot i understood that boatloader cant be downgraded to previous version. unfortunately i think the latest indian version is far behind the uae version.
So i just omitted BL file while odin installation and flashed the rom. Then i dont have imei and mobile network became unusable.
Now i flashed latest Malaysia version oreo (android 8). But still volte is not working.. Any idea whats happening...?