I remember reading that for custom ROM developers it’s complicated (or even not possible?) to implement eSIM support because the use of it requires google services.
As I understand it, it is not impossible, just too much effort to register an esim without google services. However, once registered, they are not needed anymore. So one solution is to register the esim on stock android before installing a custom ROM.
GrapheneOS has an even better solution where you can temporarily install google services in userspace and give them control of the esim module to register an esim and then remove the access and optionally uninstall them.
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I remember reading that for custom ROM developers it’s complicated (or even not possible?) to implement eSIM support because the use of it requires google services.
As I understand it, it is not impossible, just too much effort to register an esim without google services. However, once registered, they are not needed anymore. So one solution is to register the esim on stock android before installing a custom ROM.
GrapheneOS has an even better solution where you can temporarily install google services in userspace and give them control of the esim module to register an esim and then remove the access and optionally uninstall them.