Qualcomm HS-USB SER4 90A8 (COM10) Driver

The Qualcomm HS-USB SER4 90A8 (COM10) driver helps Windows recognize and communicate with the USB serial interface exposed by a compatible Qualcomm-based device. Listed under Qualcomm Atheros in the USB category, this interface may need a driver if it appears as an unknown device, displays a warning in Device Manager, or cannot be accessed by compatible service software.

Key Features

• USB serial communication: Enables compatible software to communicate with the device through its Windows serial port interface.
• Device identification: Helps Windows associate the Qualcomm HS-USB SER4 90A8 interface with the appropriate driver rather than leaving it unrecognized.
• COM port access: Makes the interface available as a serial port. Although the device name includes COM10, Windows may assign a different port number depending on your system.
• Legacy Windows support: Intended for Windows 10, 8.1, 7, Vista, and XP when the selected package supports your operating system and architecture.

How to Install Qualcomm HS-USB SER4 90A8 (COM10) Driver

1. Check your system and device. Confirm your Windows version and whether it is 32-bit or 64-bit. In Device Manager, open the device’s Properties and check its hardware IDs to help verify the correct driver match.
2. Choose a compatible package. Before starting your Qualcomm HS-USB SER4 90A8 (COM10) driver download for Windows, review the package’s supported systems and source. Select a trusted free download rather than an unrelated driver-updater utility.
3. Extract the downloaded files. If the package is compressed, unpack it into a folder you can easily find. Follow any included instructions, especially if the device manufacturer specifies a connection mode.
4. Install the driver. Run the supplied installer, or right-click the device in Device Manager, choose Update driver, and browse to the extracted folder. Proceed only if Windows identifies a suitable match; do not force an incompatible driver.
5. Verify recognition. Reconnect the device or restart Windows if prompted. Check that the warning icon is gone and note the assigned COM port before opening compatible software.

Keep the driver updated when a verified release addresses a connection issue or adds needed compatibility. The latest version should still match your hardware and operating system. For Windows 10/11 systems, check support carefully: Windows 10 is listed for this device, but Windows 11 compatibility is not confirmed. If the current driver works reliably, review release notes before choosing to update.