Iridium Extreme 9575

We offer a firmware upgrade service which can be ordered here

The Iridium 9575 Extreme firmware version HP19004 is available for download below.

You will require a computer running Windows 10

This firmware update provides improved performance with Iridium’s new constellation

Checking firmware version on Iridium 9575 Extreme handset:

Navigating to:

  • Menu
  • Setup
  • Phone Information


Download the Firmware and Instructions from

Iridium Extreme 9575 Firmware and Instructions Link

Having the firmware ready is a 2 step process

  • Download firmware
  • Unzip firmware


Please follow the instructions available in the PDF downloaded with the firmware above.

You will need to connect the computer to the Iridium Extreme via the USB Cable and adapter