To use a terminal for your modem, you first need the correct drivers and official management software. HUAWEI HiSuite
Locate and run an installer package like the or explicit driver binaries. Insert your cellular hardware into a functioning USB slot.
There are specialized software tools designed specifically for Huawei devices that integrate a terminal interface. Huawei Modem Terminal Download
AT+CSQ — Checks the signal strength. It returns two numbers; the first represents the Signal Strength Indicator (RSSI) on a scale of 0 to 31 (higher is better).
: For advanced system software upgrades, you may need to use the BootLoader menu (accessible by pressing Ctrl+B during startup) to download files from a TFTP or FTP server. Open in app - Documentation (English) - Confluence To use a terminal for your modem, you
Here is a reference table of the most useful commands to run after downloading your terminal software: Expected Output / Example AT Tests the terminal connection. OK ATI Displays manufacturer, model, and firmware version. Huawei E3372, Firmware version, etc. AT^CARDLOCK? Checks the SIM lock status of the device. ^CARDLOCK: 2,10,0 (2 means locked, 1 means unlocked) AT^HCSQ? Retrieves advanced signal quality (RSRP, RSRQ, SINR). Real-time signal metrics for precise antenna alignment. AT+CUSD=1,"*100#",15 Sends a USSD request to your network carrier. Returns your current carrier balance. AT^RESET Reboots the modem hardware. Device restarts and terminates connection. Troubleshooting Terminal Connection Issues
PuTTY is a legendary, open-source terminal emulator capable of handling serial connections. While widely used for SSH, it functions perfectly as a modem terminal. Users simply need to select the "Serial" connection type, enter the correct COM port, and set the speed (usually 9600 or 115200 baud). 3. DC-Unlocker : For advanced system software upgrades, you may
: This documentation explains how to use terminal software to transfer modems into "modem-only" mode using commands like AT^SETPORT="FF;1" or AT^U2DIAG=0 .