Windows assigned a high COM port number (e.g., COM23). Legacy software (like DC-Unlocker) only scans COM1-COM16.
If your Huawei USB modem is still not creating serial ports after this guide:
The ( hwusbser.sys , hwusbmdm.sys , hwportctrl.sys ) is the kernel-level software that tells Windows exactly how to treat these serial interfaces. huawei usb ser driver
Low. This is not a "plug-and-play" driver for casual users. It frequently fails to install automatically, requiring users to manually update the "USB SER" entry to the HUAWEI USB COM 1.0 port via Device Manager. Pros & Cons Vital Recovery Tool: Essential for unbricking phones that won't boot normally. Manual Installation:
: A specific recovery state used when a device is "bricked" or requires firmware flashing at a hardware level. Windows assigned a high COM port number (e
Without this driver, your computer will see an "Unknown Device" or a "Huawei Mobile Broadband" with a yellow exclamation mark in Device Manager, rendering your modem's advanced features—such as AT command sending, firmware updates, and connection management—useless.
AT+CGMM
The modem switches back to CD-ROM mode every 30 seconds.