Why can't Xiaomi activate SIM card on their devices?

The reason why Xiaomi can't activate SIM cards on their devices is that the activation process is dependent on the telecommunications carrier or mobile service provider rather than the manufacturer of the device, such as Xiaomi.

When a user purchases a Xiaomi device, they can easily insert their SIM card into the device and connect to the carrier's network. However, the SIM card needs to be activated with the carrier in order to establish a network connection. This activation process requires the user to contact the carrier or service provider to activate their SIM card by providing necessary information and completing certain procedures.

Xiaomi cannot activate SIM cards on their devices as they do not have access to the carrier's network systems and databases. Therefore, it is the responsibility of the user to initiate the activation process with their carrier once they have inserted the SIM card into their Xiaomi device.

It's important for Xiaomi users to contact their respective carriers or service providers for SIM card activation assistance and follow the instructions provided by them to successfully activate their SIM cards and establish network connectivity with their Xiaomi devices.