Hp Un2420 Mobile Broadband Module Driver Windows 10 Upd -

Here’s a step-by-step guide to getting the HP un2420 (Gobi 2000) mobile broadband module working on Windows 10, including driver setup and important limitations.

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⚠️ Important Note

The HP un2420 module was originally designed for Windows 7 / Vista. HP never released an official Windows 10 driver for this hardware. However, the Qualcomm Gobi 2000 reference drivers can work on Windows 10 with manual installation. hp un2420 mobile broadband module driver windows 10 upd

Step 1: Download the Correct HP Driver Package

Navigate to HP’s support website (or use a cached driver archive) and download the original driver: Here’s a step-by-step guide to getting the HP

• File name: sp51085.exe (HP un2420 Gobi 2000 Module Driver for Windows 7)
• Alternative: sp54998.exe

Driver doesn’t install / Code 10 / Code 31

• Try disabling Driver Signature Enforcement temporarily:
  Shift + Restart → Troubleshoot → Advanced Options → Startup Settings → Restart → Press 7 (Disable driver signature enforcement).
• Then repeat manual driver install.

Modem not detected at all

• Check BIOS: Make sure WWAN is enabled (HP laptops often have a BIOS toggle for “Wireless WAN”).
• Confirm module is properly seated in mini-PCIe slot.

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7. Verify via AT Commands

Connect to the modem’s COM port (e.g., COM3) using PuTTY or Termite: ⚠️ Important Note The HP un2420 module was

• AT → should reply OK
• AT+CGMI → check manufacturer
• AT+CGDCONT=1,"IP","your.apn"

If AT commands work, the driver is installed correctly.

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Method 2: Modified INF File (For Advanced Users)

If Method 1 fails (usually due to driver signature enforcement), you can use a community-modified driver that adds Windows 10 compatibility strings to the INF file.

Warning: This disables driver signature verification. Use only if Method 1 doesn't work.

1. Download the original sp51085.exe and extract it.
2. Navigate to the Driver folder and open qcmdmntl.inf in Notepad.
3. Under the [Manufacturer] section, add the following line: %QC_DeviceDesc% = QC_Install, PCI\VEN_03F0&DEV_371D (if your specific hardware ID is different, find it in Device Manager > Details > Hardware Ids).
4. Alternatively, download a pre-modified INF from reputable driver forums (like DriverGuide or LaptopVideo2Go – scan for viruses).
5. Disable Driver Signature Enforcement: Restart your PC. During boot, press F8 (or Shift+Restart > Troubleshoot > Startup Settings > Disable driver signature enforcement).
6. Install using the "Have Disk" method as in Method 1.

Step 3: Manually Install via Device Manager

1. Open Device Manager.
2. Right-click the malfunctioning device (Unknown Device or the un2420 with a yellow mark) and select Update driver.
3. Choose Browse my computer for drivers.
4. Click Let me pick from a list of available drivers on my computer.
5. Click Have Disk.
6. Click Browse and navigate to the extracted folder (e.g., C:\SWSetup\sp51085\Driver\Win7_x64).
7. Select the file named qcmdmntl.inf (or gobi2000.inf – do not select qcser.inf).
8. Click Open > OK.
9. You will see a list of models: "HP un2420 Mobile Broadband Module" or "Qualcomm Gobi 2000". Select it.
10. Ignore the "Driver not intended for this platform" warning. Click Yes / Install.