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The CDMA USB Modem driver allows Windows to recognize a compatible USB cellular modem and communicate with it for mobile network access. This Microsoft-listed network driver is intended for users setting up a modem, restoring a missing device, or troubleshooting a connection after reinstalling Windows. Supported operating systems listed for this device are Windows 10, 8.1, 7, Vista, and XP; compatibility also depends on the modem’s hardware ID and the selected driver package.
Key Features
- Device recognition: Helps Windows identify a compatible CDMA USB Modem rather than display it as an unknown USB device.
- Cellular modem communication: Provides the software interface needed for Windows or compatible connection software to communicate with the modem.
- Network setup support: Enables driver-level functionality used when configuring mobile data access. An active service plan, compatible carrier network, and correct connection settings may still be required.
- Installation and recovery: Can help restore modem functionality when the existing driver is missing, damaged, or incompatible with the installed Windows version.
How to Install CDMA USB Modem Driver
- Check your system and device. Confirm your Windows version and whether it is 32-bit or 64-bit. In Device Manager, open the modem’s Properties and check Details > Hardware Ids to help identify a matching package.
- Choose a compatible package. Before starting a CDMA USB Modem driver download for Windows, verify the supported operating system and hardware IDs. Select the latest version that explicitly supports your modem—not simply the newest file available. Windows 10/11 compatibility should not be assumed; Windows 11 is not included in the supplied support list.
- Download and prepare the files. Use a trusted source for a free download, check any available digital signature, and extract the archive if necessary.
- Install the driver. Run the included installer, if provided, and follow its connection instructions. Alternatively, open Device Manager, right-click the modem or unknown device, select Update driver, and browse to the extracted driver folder.
- Verify operation. Restart if prompted, then check that the modem appears without a warning icon. Configure any required carrier connection software and test connectivity where compatible CDMA service remains available.
Keep the driver updated when a compatible update addresses a problem or improves reliability. Check Windows Update or your modem manufacturer’s support resources, and retain a working driver copy in case you need to roll back. A driver update cannot restore service on a retired CDMA network.
Driver Details
| Device | CDMA USB Modem |
|---|---|
| Vendor | Microsoft |
| Category | Network |
| Supported OS | Windows 10, 8.1, 7, Vista, XP |
| Published | October 31, 2026 |
| Updated | November 1, 2026 |