This update file contains the following benefits for the Iridium 9555 phone:

• Improved network connectivity
• Fixes issue where device would reboot when SMS outbox is full
• Fixed an issue preventing the display of predictive help content
• Corrected an issue preventing display of firmware version in French
• Updated Iridium branding content in Upgrade Tool

For the firmware file and instructions, please click here.

Note: The firmware update utility is not compatible with Mac OSX.