Can the car's infotainment system connect to the mobile phone's shared internet?
Yes. After enabling your phone's hotspot, go to "Settings - Connection - WLAN" on the central control screen, find the corresponding phone hotspot network, and connect to it.
Of course, the phone can also connect to the car's hotspot network. If you purchased the physical buttons for the central control screen, you can use an Android phone with NFC support to tap the volume knob in the center of the physical buttons to connect to the car's hotspot. If you did not purchase the physical buttons, enable the car's hotspot on the central control screen and connect your phone directly.
Once the phone is connected to the car's hotspot, it can not only share the car's network. If the passenger uses a phone running the Xiaomi HyperOS system, they can also conveniently control the vehicle's seats, air conditioning, music, etc., through the phone's converged device center.