one ui update 3.1

[ganeshwar]

Hi team

after one ui 3.1 april update 4g volte option is missing. Please help me 

device s10 plus 

Model sm-g975F/Ds

[ㄴJayeshㄱ]

Koiii niii 4g chal ra hai aapkk tho koi dikaat ni haii... aur ni tho formate ker doo

[Abigoyal77]

in s10 modal sm-g973f also missing

[Abigoyal77]

after april update

[ganeshwar]

yes bro