Yes, you can upgrade your iPhone to support dual nano-SIMs.
Here’s a really cool hardware hack for your iPhone XR, iPhone 11, or iPhone 12 that adds built-in dual nano-SIM support. Dual nano-SIM support is not available on iPhones outside of China. Instead, those markets offer a single physical SIM with support for a second eSIM. But YouTuber Hugh Jeffreys got thinking. What if you changed the SIM reader and tray in a regular iPhone for one from a Chinese iPhone.
