but you can use the Dual SIM feature starting with those iPhone models above with iOS 12.1 or later. To use 5G this way, you need an iPhone 12 series phone or later with iOS 14.5 or later installed.

Here’s an outstanding hack that adds a dual SIM slot to a US-sold eSIM iPhone 15/15 Pro, while preserving its exclusive mmwave module. No doubt, making use of the boardview files and schematics ...