Options:
AT^U2DIAG=0 : Sets the device to modem-only mode (disables virtual CD-ROM).
Huawei modems present multiple virtual serial interfaces when connected to a computer. One of these interfaces is the PC UI interface. A modem terminal connects specifically to this port.
To use a terminal for your modem, you first need the correct drivers and official management software. HUAWEI HiSuite
Look for entries labeled or Application Interface . Note the assigned port number (e.g., COM3 , COM7 ).