Mobile/Cell Data Usage When Using Two SIMs

[PaulCurtis]

Hi, 

I hope someone can help. I have two SIMs in the S10. It seems to insist on using SIM1 for mobile data. I can't see any setting for forcing it to use the SIM I prefer. The 'Mobile Data' switch only appears on one of the SIM's

Thanks, 

Paul

[zeuszeus]

Hey Andrew, 

I have the same issues but with Samsung A52 (2021). I dont have the preferred Sim Card option. Any  other ways?

[peasare]

I have A54 dual sim want to use sim 2 for data but setting sim 2 for data it still uses sim 1 as default