VoLTE not working after One UI 4.0 update on S21

[Rishav188]

I am using S21 unlocked version bought from USA for the last 3 months. No issues whatsoever.

But now, after One UI 4.0 on 25/11/2021, VOLTE stopped working on Jio/Airtel. 

All VOLTE and WiFi calling features and settings missing. 

[Rocking77]

Yeah, finally he told Hopefully they may resolve in the update. My bad, Just added yearly plan with jio.

[Rishav188]

2.5k+ rupees down the drain. Sorry for your loss. I'm planning to switch to Airtel, inspite of low signal at home, thus more than average battery consumption.

[prateekmahnot]

Is there any official statement by @Samsung?

[Rishav188]

Not yet. Please do post if you find anything.

[Rocking77]

No

[Rishav188]

04/12/2021
Received this after sending error report as advised by Samsung.

[hootinglorris]

Sad this is they are not even acknowledging this issue

[APS999]

A service configuration update has come today which has fixed this issue for me and a few others.

[Rishav188]

Still waiting for the update. Any specific trigger to get it?

[APS999]

No. It should automatically come as a pop-up notification.