Iridium 9555 Handset in DFU Mode Driver

The Iridium 9555 Handset in DFU Mode driver allows Windows to recognize the Iridium satellite handset’s USB firmware-update interface. It is intended for users who need to connect a handset in Device Firmware Update (DFU) mode to a PC for a manufacturer-guided firmware update or recovery procedure, rather than everyday phone use.

Key Features

• USB device recognition: Helps Windows identify the Iridium 9555 handset when it appears in DFU mode.
• Firmware-update communication: Provides the driver connection needed by compatible Iridium update software to communicate with the handset.
• Dedicated DFU support: Serves the firmware-update interface, which may require a different driver from the handset’s normal USB connection.
• Windows compatibility: Intended for supported configurations of Windows 10, 8.1, 7, Vista, and XP; check the package documentation for operating-system and architecture requirements.

How to Install Iridium 9555 Handset in DFU Mode Driver

1. Check your Windows version and system type. Before starting an Iridium 9555 Handset in DFU Mode driver download for Windows, confirm that the package supports your operating system and, where applicable, its 32-bit or 64-bit architecture. For Windows 10/11 searches, note that Windows 11 compatibility is not established by the supported OS list above.
2. Obtain a trusted driver package. Choose the latest version documented as compatible with your handset and Windows installation. If offered as a free download, verify its source and avoid third-party installers that bundle unrelated software.
3. Prepare the handset. Follow Iridium’s instructions for entering DFU mode and meeting any power requirements. Connect the handset directly to the PC using a suitable USB data cable.
4. Install the driver. Run the supplied setup program, if included. Otherwise, open Device Manager, locate the handset or unrecognized USB device, select Update driver, and browse to the extracted driver folder.
5. Verify recognition before proceeding. Check Device Manager for warning icons, then follow the instructions supplied with the compatible Iridium firmware-update utility. Do not disconnect the handset during an active firmware transfer.

Keep the driver updated when Iridium provides a compatible release or recommends an update to address a connection issue. A driver update and a handset firmware update are separate tasks, so review the instructions for each and retain a working driver package when maintaining an older Windows system.