After update of One UI 3.1 4G volte service is not working

[VR11]

In my samsung M30S after the update of One UI 3.1 4G volte service is not working also manually also network not shown or available any network is not  working. I am also trying all available network ( AIRTEL , JIO ,  Vi, BSNL sim cards but same problem facing. BUT THESE SIM CARD ARE WORKING IN OTHER PHONE PROPERLY.

PLEASE REFIX THESE ISSUE....

I WAITING FOR YOUR SUPPORT AND REPLY...

DO THE NEEDFUL SERVICE FROM YOUR END ..

[VR11]

May be 4G band issue with this Samsung M30

[VR11]

After updation device chipset is not suppotive with indian band network

[VR11]

Samsung Galaxy RND team take this issue seriousely..

[animeshmodi]

Never choose samsung again

[VR11]

Done

[Samsung_Support2]

Dear Samsung Member,

Greetings from Samsung Customer Support!

To resolve your device network issue please visit this link: https://www.samsung.com/in/support/mobile-devices/samsung-mobile-network-issues/#:~:text=1%20Check%2....

For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support