Terminal [top]: Huawei Modem

Queries the current SIM PIN status (Ready, SIM PIN, or SIM PUK). AT+CSQ

Returns the signal strength quality of the current connection. AT^CARDLOCK="unlock_code" huawei modem terminal

Windows PC with .NET Framework 2.0 or higher installed. Queries the current SIM PIN status (Ready, SIM

The software typically includes an "AutoConnect" feature that scans available COM/serial ports to find the modem's AT command interface automatically. Common AT Commands for Huawei Modems view lock status

Enables users to manage SIM security (PIN/PUK), view lock status, and manually select network modes such as LTE-only or 3G-preferred.

A compatible Huawei USB modem or mobile hotspot connected via USB.