"Can't switch SIMs" error combining eSIM and physical SIM

Apps & Core Settings
1

Hi! I’m a happy iodé user on a OnePlus 13, but I have a SIM/eSIM related problem.

After installing iodé I activated a US eSIM that worked right away. But today, I tried adding two physical sim cards I use when traveling and it automatically deactivated the eSIM. When trying to set them up (ie use the eSIM by default not the physical SIM) I get a “Can’t switch SIMs” error and the eSIM won’t activate.

I tried reinstalling the eSIM but I can’t even remove it. I’m really hoping it’s possible to use both eSIM-SIM at the same time but I’m running out of ideas on how to accomplish that.

iodéOS 7.5

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2

Please check in “OpenEUICC > 3 dots top right” if you have “Dual SIM” checked? Maybe there is even a “Triple SIM” option (sorry I don’t have a dual physical SIM phone to see if that is possible or not)?

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3

Thanks rik for the quick answer! I’ve looked hard but cannot find OpenEUICC anywhere in my settings, including the developer options. I read about it in another post and tried downloading the app under the same name, but it won’t open. Sorry I’m pretty ignorant on how this all works.

4

So OpenEUICC isn’t available for me in the preinstalled app, it seems to be called SIM Manager now, but is not an app I can find or open. I did install OpenEUICC through F-droid but can’t open the app (“OpenEUICC keeps stopping”)

5

OpenEUICC is not compatible with all devices, and I think the OnePlus are some of those (as you are finding out). If it wasn’t there, then yes “SIM Manager” (Google) is the default and is used for eSIM registration. I don’t know of any configuration there to enable dual / triple SIM so that was a bad direction I steered you in.

I think (??) some phones list the second slot as SIM / eSIM. But it still has only 2 slots. This may be true (you can have 1 physical and a second physical OR eSIM)? Sorry I am not certain though.

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6

I think I finally kinda figured it out. After adding an eSIM, you have to click on +Add SIM, even for the physical sim. And that will set it up properly and let you use both at the same time. I assumed that just adding the SIM cards would work automatically, but apparently no.

Also, adding two physical SIMS seems to take over the eSIM. I wish I could have 3 SIMS together and choose what’s what. But that’s not possible apparently :frowning:

2 Likes
7

Thanks for the explanation and a bit of testing to sort it out.