The "hot" performance of the router is managed by its internal radiator, but users should adhere to official environmental limits: Operating Range : -20°C to +55°C. Storage Range : -40°C to +70°C. Heat Dissipation

Changing an IMEI on a device like the MC801A is significantly more complex than software configuration. It involves low-level interaction with the modem’s file system.

: A high-quality USB cable to connect the router to your PC.

Some firmware versions allow access to a serial port (Diagnostic Port).

If the goal is to use different SIM cards without modifying system hardware, consider official network unlocking DirectUnlocks