If all else fails, the device may be hardware-limited (e.g., certain carrier-locked E3372s have no serial interface at all) – in which case you must reflash the firmware using a dedicated downloader tool. Last tested: Windows 11 24H2 / Huawei E3531 + E3372h-153
Huawei Data Card Driver for Windows (v11.210.04.00.00) or newer. huawei usb ser driver problem
Introduction Huawei USB modems, often branded as "E3531," "E3372," "E8278," or found inside mobile hotspots (MiFi) and older Android phones, use a USB Serial (Ser) driver to establish communication for diagnostics, firmware updates, network unlocking, or converting the device from "CD-ROM mode" to "modem mode." If all else fails, the device may be hardware-limited (e
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If all else fails, the device may be hardware-limited (e.g., certain carrier-locked E3372s have no serial interface at all) – in which case you must reflash the firmware using a dedicated downloader tool. Last tested: Windows 11 24H2 / Huawei E3531 + E3372h-153
Huawei Data Card Driver for Windows (v11.210.04.00.00) or newer.
Introduction Huawei USB modems, often branded as "E3531," "E3372," "E8278," or found inside mobile hotspots (MiFi) and older Android phones, use a USB Serial (Ser) driver to establish communication for diagnostics, firmware updates, network unlocking, or converting the device from "CD-ROM mode" to "modem mode."
