Installing the can be done manually if the automatic installation fails. Here is the process for Windows users:
If your Huawei USB modem is still not creating serial ports after this guide: huawei usb ser driver
AT+CGMM
Manually change the COM port number:
Remember: persistence is key. If the automatic installer fails, the manual "Have Disk" method nearly always succeeds. Keep a copy of the official hwusbser.inf files in your toolkit, and you will never be stranded with a useless "Unknown Device" again. Installing the can be done manually if the