Before you search, understand this: The Huawei E3276 is a . When you first plug it in, Windows sees it as a virtual CD-ROM (containing the Windows driver installer). Once the driver installs, it "switches" into Modem mode.
to find and install the latest official NDIS or modem drivers automatically. HUAWEI Global 3. Manual Driver Update (Legacy Windows) huawei e3276 driver upd
Because the official Huawei support page for this device is largely retired, users seeking specific drivers should utilize the following resources: Huawei E3276 Driver Update: A Comprehensive Guide dual-mode