topic Re: Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cel.. in Galaxy S24

S24 Ultra: Unable to choose different SIMs for phone calls and cellular network usage

adrianyepremyan — Thu, 22 Feb 2024 17:51:46 GMT

Hi. It's been a week with my new S24 Ultra, and one thing that really bothers me is that I am unable to use my SIM1 (physical) for phone calls and SMS, and the SIM2 (eSIM) for the cellular network.

There's no such option to choose in the Settings app. I am able to choose only the Primary SIM, which uses the chosen SIM for everything, which is not useful in my case. I saw a similar question asked, but there were no solutions posted. I wanted to know if I can use two eSIMs at the same time, and if by doing that I might be able to have more control over them or not, because I can swap my physical SIM with another eSIM easily.

Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellular ne..

PAHelper — Thu, 22 Feb 2024 20:08:53 GMT

It asks if you want to use one for data and one for calls on mine when you install the second one.

Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellular ne..

adrianyepremyan — Thu, 22 Feb 2024 21:10:10 GMT

That didn't do anything when first installing, and I just ejected and inserted back the SIM and nothing happened besides my eSIM becoming the Primary SIM now, which I don't want.

Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellular ne..

KiwiBird97 — Thu, 22 Feb 2024 22:06:46 GMT

On the Galaxy Tab S9 and S9 FE in the United States, Canada, and Puerto Rico, the behavior of dual SIMs is different. Furthermore, there is no dual SIM support on the Tab A9, S8, or earlier.

WI-FI VARIANTS (SM-X510, SM-X610, SM-X710, SM-X810, AND SM-X910)
Your tablet will work with phones with cellular plans from South Korea, the United States, Canada, Puerto Rico, Mexico, Brazil, Latin America, Europe, Russia, CIS, Israel, Turkey, the Middle East, India, Asia Pacific, Taiwan, Hong Kong, and Japan (excluding Mainland China and Indonesia). You can choose preferred mobile plans separately for outgoing calls, new text conversations, and cellular data.
(Note: If you do not use the Call & Text on Other Devices option, only cellular data can be used via hotspot/tethering. This is because there is no connected phone to handle calls and texts.)

CELLULAR VARIANTS (ALL PHONES, SM-X518U, AND SM-X818U)
Your tablet can only work with phones with cellular plans from the United States, Canada, and Puerto Rico. You must set one primary mobile plan for all three functions (calls, texts, and cellular data). For example, you cannot set plan 1 for calls and texts and plan 2 for cellular data. We tested it with AT&T and Ubigi on our S23 Ultra and found issues when Ubigi is set as the primary plan.

COMPATIBLE CELLULAR PLANS FOR THE US
• AT&T
• C Spire
• Cricket (One UI 6.1+)
• Metro by T-Mobile
• Spectrum (One UI 6.1+)
• T-Mobile USA
• US Cellular
• Verizon
• Xfinity Mobile
• Other US carriers and MVNOs associated with the above

Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellular ne..

adrianyepremyan — Thu, 22 Feb 2024 22:15:50 GMT

So did I get it right that there's a restriction applied to all carriers other than the ones specified in your list?

I live in Armenia, and I pre-ordered an unlocked version of the phone.

So there's no way for me at all to specify different SIMs for different things?

Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellula..

KiwiBird97 — Thu, 22 Feb 2024 22:19:58 GMT

What are the model numbers for your phone and tablet? Be sure to include any suffices like 0, B, C, N, U, U1, or W (for example, SM-S928U1, SM-X910).

Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellula..

adrianyepremyan — Thu, 22 Feb 2024 22:21:20 GMT

SM-S928U1

It's an S24 Ultra phone.

Re: Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cel..

KiwiBird97 — Thu, 22 Feb 2024 22:25:43 GMT

The U and U1 variants do not support preferred SIMs for individual functions. Because of this, data-only SIMs do not work correctly on those variants.

Re: Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cel..

adrianyepremyan — Thu, 22 Feb 2024 22:45:31 GMT

Thanks a lot for the information, it is really helpful to at least know that it is officially not supported, though I really don't get the reason why one model supports the feature and the other doesn't...

Do you know if it is a hardware limit or it is possible that with future updates it might get fixed / support added?

Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellula..

PAHelper — Thu, 22 Feb 2024 22:57:25 GMT

I used 2 esim and it asked me if I wanted to use both Sims or just 1. It said I could use 1 for voice and other for data on s24 ultra

Re: Re: Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and..

KiwiBird97 — Fri, 23 Feb 2024 00:55:30 GMT

eSIMs in QR codes that require a manual activation code entry cannot be used (4th screenshot). None of the carriers in the United States require an activation code to be entered manually. For example, if you activate a foreign SIM with Gio (India) and it asks for an activation code, here's what would happen.
• US/CA models: "eSIMs from this country/region cannot be added"
• International models: "Enter Activation Code"

Cross-device eSIM transfers were removed in One UI 6.0. It is not clear whether they would return in One UI 6.1 for the US.

Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellular ne..

PAHelper — Sun, 25 Feb 2024 07:03:50 GMT

This works on sm-s928u1
https://youtu.be/og3j65MPPBo?feature=shared

Re: Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cel..

GeeksFortune — Fri, 26 Apr 2024 17:18:54 GMT

Am experiencing the same problem with US Unlocked Version S24 Ultra SM S928u1. It's utterly frustrating that a simple functionality as being able to use 1sim card for calls&text and the other exclusively for Mobile data only is missing from such a flagship.

If this is a software limitation we hope and pray that Samsung can fix&add the functionality in future updates😏

Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellula..

fatchet — Fri, 24 May 2024 09:23:44 GMT

How about the B variant? I can only choose sim 1 for mobile data usage. I wish to choose my esim as an option but not in the choices 😞

Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellula..

Magnumxxxl — Fri, 31 May 2024 05:05:26 GMT

That does not work. It only says switch to switch to primary sim for data, calls and texts. There's no option like this with the U1.

Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellula..

Magnumxxxl — Fri, 31 May 2024 05:07:48 GMT

I can do this with my pixel 8 pro in USA. I don't understand why it was removed if even my basic older pixel phones can do this. It's asinine to me that Samsung removed this feature. I have to use another phone because of this dumb limitation that a flagship removed.

Re: Re: Re: S24 Ultra: Unable to choose different SIMs for phone calls and cel..

bdanyel — Wed, 19 Jun 2024 13:39:23 GMT

This is very annoying, like annoying is the problem of the camera that change the saturation of the color after I take the picture, and make terrible and fake colors. This is really an annoying and there's no way to stop that. I'm very very disappointed of this phone. I'm gonna ride off now. Very annoying Samsung.

I regret that II sold my s23 ultra to by this bs new model!

Wake up Samsung!

Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellular network usage

Samsung_79jcYDZ — Fri, 12 Jul 2024 19:43:59 GMT

Are there any plans to enable this functionality?

Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellular network usage

Binju — Sat, 20 Jul 2024 14:22:07 GMT

The options to choose which sim is being used for calls/messages/data is so helpful when you're travelling and trying to avoid roaming charges. It is mind boggling that a flagship phone bought off of Samsung's website has this feature disabled for US/Canada yet enabled in other markets. What was the thought process behind this change? I'm betting there was only one - $$$$$.

All I can say is next phone I'm not going with Samsung, done dealing with different variants of the same phone and trying to figure out what I'm going to get.

Re: S24 Ultra: Unable to choose different SIMs for phone calls and cellular network usage

Members_PMcgBOa — Wed, 24 Jul 2024 19:18:43 GMT

Found a solution on Reddit:

Lastest trick for Android 14 One UI 6 Snapdragon (esim version). When we use primary sim option, mobile use that sim for all call, sms, & data. But people want to use data from sim 1 or calls from sim2. So here is solurion.

1- Set sim 1 or 2 that you want to use for data.
2- Install Phone by google
3- Set as default > Settings > Calling Accounts > Preferred SIM for Calls > Choose Sim
4- Open Samsung dialer and make default.

Now perefrred sim is selected for what you have choosed in phone by google. Data will be use that sim is primary in your settings.