eSIM for iPhone XS, XS MAX and XR
I have an AT&T nano-SIM card and another nano-SIM card with Chinese carrier. I learned that the unlocked iphone Xs MAX can have a nano-SIM and an eSIM working together. But the Chinese carrier didn't support eSIM. So I want to transform my AT&T nano-SIM card into eSIM so that my two phone number can both work on the iphone. How can I change my AT&T nano-SIM card to eSIM?