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Sony Ericsson - Other hardware - Sony Ericsson Device 125 USB WMC Data Modem Driver 4.40.2.0

by Sony Ericsson8.187XP64-bit32-bitSHA-256 verified

Manufacturer
Sony Ericsson
Device
Sony Ericsson - Other hardware - Sony Ericsson Device 125 USB WMC Data Modem
Driver version
4.40.2.0
Release date
April 24, 2007
Supported Windows
Windows 8.1, Windows 8, Windows 7, Windows XP
Architecture
64-bit (x64), 32-bit (x86)
File size
276 KB
File name
20051886_201737bbc6782c5fee190ae1db928448161e83df.cab
Digital signature
Signed - catalog s125mdm.cat
INF version
04/24/2007,4.40.2.0
INF provider
Sony Ericsson
Device class
Modem
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
75fd3251394301f5d1dbf90443664cd12e2c43e2e2d45206b387b26844cc1ca2

Supported hardware IDs (28)

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 8.1, Windows 8, Windows 7, Windows XP) and architecture (x64, x86)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).