DriverCove

WCN785x Wi-Fi 7(802.11be) 320MHz 2x2 FastConnect 7800 Driver 685.13804.40.0

by Qualcomm Communications Inc.Windows 11ARM64SHA-256 verified

Manufacturer
Qualcomm Communications Inc.
Device
WCN785x Wi-Fi 7(802.11be) 320MHz 2x2 FastConnect 7800
Driver version
685.13804.40.0
Release date
December 21, 2025
Supported Windows
Windows 11
Architecture
ARM64
File size
4.5 MB
File name
7454b32a-3290-444d-9cbd-52406277f9d0_2c9e069f4e07e6f20412055792855743fd925b9c.cab
Digital signature
Signed - catalog qcwlanhmt8480.cat
INF version
12/21/2025,00685.13804.00040.00000
INF provider
Qualcomm Communications Inc.
Device class
Net
Source
Microsoft Update Catalog
Last verified
July 7, 2026
SHA-256
cb90763a88321ede9b7ff9c82cbb4c636cc24af339a6c7492df25ed331fc5cf4

Supported hardware IDs (32)

Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.

How to install

  1. Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
  2. Verify compatibility: your Windows version (Windows 11) and architecture (arm64)must match this driver, and your device's Hardware ID should appear in the list above.
  3. Download the file using the button - it comes directly from Microsoft Update Catalog.
  4. Optionally verify the checksum: open PowerShell, run Get-FileHash your-download.cab -Algorithm SHA256 and compare with the SHA-256 above.
  5. Extract the .cab archive: right-click → Extract All, or run expand -F:* file.cab C:\driver\ in Command Prompt.
  6. Install via Device Manager: right-click your device → Update driver → Browse my computer → point to the extracted folder. Alternatively run pnputil /add-driver C:\driver\*.inf /install.
  7. Check Device Manager: the device should show no warning icons, and the driver version should match.

How to roll back

If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If the button is greyed out, use the restore point from step 1 (Start → "Recovery" → Open System Restore).

Other versions of this driver

VersionReleasedSource
3.1.0.1647January 21, 2026Microsoft Update Catalog
1.0.4458.2600October 16, 2025Microsoft Update Catalog
3.1.0.1571October 16, 2025Microsoft Update Catalog
3.1.0.1571October 16, 2025Microsoft Update Catalog
1.0.4392.1500August 2, 2025Microsoft Update Catalog
3.1.0.1486May 22, 2025Microsoft Update Catalog
3.1.0.1486May 22, 2025Microsoft Update Catalog
3.1.0.1453March 21, 2025Microsoft Update Catalog
3.1.0.1453March 21, 2025Microsoft Update Catalog
1.0.4267.800March 18, 2025Microsoft Update Catalog
3.1.0.1453March 13, 2025Microsoft Update Catalog
3.1.0.1430January 27, 2025Microsoft Update Catalog