Turn Off data for 2 nd sim iPhone 12

Hello,
Quick question about dual SIM with an iPhone 12.
I currently have 1 Belgian sim card and a Luxembourg e-sim.
My main number is the lux.
So it takes calls and I use cellular data on that plan.
My question is, when I lose the network with the lux number, does the mobile data automatically switch to the Belgian package? I'd rather not see that happen
Thanks

Posted on Aug 25, 2022 12:23 PM

Similar questions

Dual SIM: Setting Wifi calling on one, Wifi and Cellular on the 2nd I read a previous conversation but am not sure I really saw an answer. That conversation, from "unkn" is below. Here is my situation. I have dual SIMs. One is Verizon in the US, one is vodafone in netherlands. I go back and forth from the US to Netherlands but spend most of my time in netherlands. My US number is the physical SIM. My dutch number is an eSIM. -I want my primary number (my dutch number ) to support cellular and Wi-Fi calling. -I want my secondary (USA number) to only be on for Wi-Fi calling. I do not want to have "cellular" on because then verizon charges me $10/day. Is this possible and how? When I had separate phones, I set my US phone to Airplane mode but turned on Wi-Fi. it looks like my provider has told me when I made a call using my US sim while the travel thing is turned off, I have not been charged which could mean that it is in fact using the data from my Dutch sim to make the call as if it’s on Wi-Fi even tho my phone only currently had Dutch data when I made a call to the states using my American number This was a user's previous question. They went into more detail. It had been answered by "i_rina" "My US primary SIM provider allow Wifi-Calling even when overseas as if it was a domestic calls but if when roaming, if I turn my phone off Airplane mode, I get immediatly charged a $10/day fee as soon as my phone connect to a roaming network even if not receiving or calling outside of Wifi-Calling. In the past I was simply keeping my US phone on Airplane mode with just Wifi when overseas. I have a second phone with my European SIM that I turn on and was providing me calls, data and was making Wifi hot spot for the US phone. I just switch a Dual SIM iphone. My US primary SIM is now an e-SIM and the EU secondary SIM remains a physical SIM. Question 1: How can I deactivate not only data Data but all cell connectivity on my primary SIM when Roaming and keep only the secondary SIM on for cellular call and data when roaming BUT keep Wifi-Calling on the primary SIM when roaming that I can still receive / emit call when I have Wifi?"
4246 2
Using dual SIM some data is still used on first data service when set to use second service only I have a dual SIM iPhone with a UK and a Greek SIMs. To avoid roaming charges when in Greece I switch off data roaming and switch data to the Greek SIM only when in Greece. I've checked my bills and I am still getting a few kB of data being billed each day to the UK service. It seems the iphone is ignoring the instruction to only use the Greek SIM for data. I've checked the forums and the problem with data leaking with data roaming switched off is known. The advice is to switch off mobile data altogether when abroad. Then you can receive calls but not use data. However that advice does not work with a dual SIM as it would disable my use of the Greek SIM data. Why is the UK network still recording roaming data when the iPhone is told to only use the other data service. BTW, the setting to "auto switch" data services is switched off too. Seems like a bug in dual SIM software? I don't think this is a carrier problem - it is an Apple problem.
1139 2
Physical Sim Tray in iPhone 14 pro Max Does the iPhone 14 Pro Max which are being sold at Canada Apple Stores have Physical Sim Tray option available in it or not ?
1435 6

2 replies

SravanKrA

Level 10

431,344 points

Aug 26, 2022 4:44 AM in response to Sfeuxy

If you have enabled Mobile Data Switching then yes. Please see the pic below which is self-explanatory.

Sfeuxy Author

Level 1

4 points

Aug 26, 2022 4:53 AM in response to SravanKrA

thank you then i turn off. because i dont want. switch beetween 2 ;-)

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Turn Off data for 2 nd sim iPhone 12