Sony Ericsson Device 091010 USB Application Port (COM29) Driver

The Sony Ericsson Device 091010 USB Application Port (COM29) driver helps Windows recognize the device’s USB application interface and make it available to compatible Sony Ericsson software. You may need it if this interface appears as an unknown device, displays a warning in Device Manager, or cannot be accessed by an application that requires it. Although listed in the Camera category, this entry identifies an application communication port rather than a standalone camera driver.

Key Features

• USB interface recognition: Helps Windows identify the Sony Ericsson application port when the connected device exposes that interface.
• Application communication: Allows compatible software to communicate through the assigned COM port; available functions depend on the device and software.
• Legacy Windows support: Listed operating systems include Windows 10, 8.1, 7, Vista, and XP. Check the individual package for supported versions and 32-bit or 64-bit requirements.
• Troubleshooting support: Installing a matching driver may resolve missing-driver warnings, though connection problems can also involve USB cables, device settings, or application compatibility.

How to Install Sony Ericsson Device 091010 USB Application Port (COM29) Driver

1. Check the device details. Open Device Manager and locate the Sony Ericsson entry or unidentified USB interface. Review its hardware IDs under Properties > Details to confirm that the driver package matches.
2. Choose a compatible package. Before starting a Sony Ericsson Device 091010 USB Application Port (COM29) driver download for Windows, verify the operating system, architecture, and source. A free download should still be checked for authenticity.
3. Prepare the files. Extract the archive if necessary and read any included instructions. If an installer is supplied, follow its guidance on when to connect the device.
4. Install the driver. Run the supplied installer, or right-click the device in Device Manager, select Update driver, and browse to the extracted driver folder. Avoid forcing an incompatible package or bypassing driver-signature protections.
5. Verify the connection. Reconnect the device and check for warning icons. Windows may assign a port number other than COM29; configure your application to use the port actually shown.

Keep the driver updated when a verified, compatible release addresses a problem you encounter. Choose the latest version intended for your hardware rather than assuming a newer package will work. For Windows 10/11 systems, check support separately: Windows 10 is listed here, but Windows 11 compatibility is not confirmed. Create a restore point before an update so you can recover if needed.

Common Issues and Fixes

• Install fails or rolls back: Run the Sony Ericsson USB driver installer as administrator, use the package matching your Windows version/architecture, and close PC Suite/Update Service first. Remove old Sony Ericsson USB drivers via Device Manager (Show hidden devices), reboot, then retry.
• Device not detected / COM29 missing: Try another USB cable and a direct port, set the phone to the correct USB/application mode, then scan for hardware changes in Device Manager. If the port shows a warning, uninstall it and reconnect.
• Version or COM-port conflicts (Code 10/28): Uninstall old Sony Ericsson USB serial/application port drivers, delete leftover driver packages, reboot, and install one matching driver set. If COM29 is in use, assign another free COM number.