Still no solution for mobile data issue.

[Durgeshkapoor]

 If you buy s21 ultra phone you are making a mistake. 

https://r2.community.samsung.com/t5/Galaxy-S/S21-ultra-mobile-data-issue/td-p/10560294

Let me tell you we are facing this issue since August 21 and samsung is sleeping. 

[iamrohitkm]

No issue in my s21 ultra.

[Durgeshkapoor]

Then you are some of the Lucky ones as you can see I have shared a link check it many are facing this issue. Are you using dual sim because this problem is there when you use dual sim

[iamrohitkm]

I am using single esim. But i feel its network issue.

[Durgeshkapoor]

There you go tug that explains it try using the phone with dual sims you will know what I am talking about. Even i am having no issue with single sim

[sarkaridoctor]

My issue was solved after latest update

[Durgeshkapoor]

Which update January update

[sarkaridoctor]

1 Jan security patch...mine is s21plus having the same issue bought in November...but was resolved after update in jan

[Durgeshkapoor]

And you are using dual sims.

[sarkaridoctor]

Yes