Remote SIM Access
The Xiaomi MI2S supports rSAP with it's stock ROM.
If you experience problems with the built-in rSAP you may switch to my app by installing this additional plugin:
After the installation of the plugin or after a reboot you have to manually switch off/on rSAP once in the app!
The Phonebook Access Profile implementation in the Xiaomi MI2S does not ignore the filter parameter so chances are high that you get the full phonebook in your car.
The Xiaomi MI2S is compatible with the Phonebook Access Profile (PBAP) of my Bluetooth Phonebook app. It may fix problems with missing contacts.