Iridium Firmware Updates

Firmware Updates Available for
Iridium 9555, Iridium Extreme^®
and Iridium Extreme^® PTT

	Iridium 9555 (HT18001) This upgrade includes bug fixes to enhance use of the handset. Download Iridium 9555 Upgrade Tool & Release Notes
	Iridium Extreme® (HL18005) This upgrade includes bug fixes for overall performance improvement and stability of the handset. This upgrade also contains enhancements for better GPS performance of handsets when used with docking stations. Download Iridium Extreme Upgrade Tool & Release Notes
	Iridium Extreme® PTT (HP18005) This upgrade includes bug fixes for overall performance improvement and stability of the handset. This upgrade also contains enhancements for better GPS performance of handsets when used with docking stations. Download Iridium Extreme PTT Upgrade Tool & Release Notes

While these releases are not mandatory, it is strongly recommended that the upgrades be performed as soon as possible to enable the best service experience.