IsatPhonePro Firmware Upgrade

Version 5.8.0 of the firmware for the IsatPhonePro has been released on 23 March 2015. 

Version 5.11.0 of the firmware for the IsatPhonePro has been released on 12 October 2015.

If you purchased an IsatPhonePro from Zippisat before this date, it is recommended that you upgrade the IsatPhonePro's firmware to version 5.11.0

Note: Version 5.8.0 fixes 'sporadic' connection issues and this version is the latest madatory version to install for service in all locations.  When upgrading, upgrade to 5.11.0 since it is a later version with some minor bug fixes.

It is was mandatory to install version 5.3.0. before 18 November 2014 ("final extended date").  This upgrade enabled connection to the new Inmarsat Alphasat I-4 satellite above Africa (after 12 November 2013). 

Version 5.3.0 had serious bugs and version 5.8.0. was release shortly afterwards and is considered mandatory.

Version 5.11.0 was released on 12 October 2015 and fixes some minor bugs.

IsatPhonePro phones that are not upgraded to version 5.8.0. (or later, e.g. 5.11.0) will not be able to register to the network in all locations.

If you would like to check on which firmware your IsatPhonePro currently is on, please go to MENU>SETTINGS>ABOUT.  It should be version 5.8.0. (or later, e.g. 5.11.0) - version 5.3.0. does not work everywhere!.

It is not advisable to use the CD that came with the phone since it might be outdated.  Rather use the latest files from the updated links in the upgrade email or the links below. You need a Windows PC to use the firmware upgrade tool (you cannot use a Mac or Linux system).

Make sure your IsatPhonePro battery is over 40% charged. You can use any micro-USB cable for the upgrade e.g. the micro-USB cable that was supplied with the IsatPhonePro.

You can download the latest USB drivers, Firmware Upgrade Tool, Firmware, Firmware release notes, User-Guides and How-To documents from: , or use the download links in the following 3 STEPS (1-3):

Save these compressed files onto your computer, then extract (right click "extract"), then run the install programs (Setup.exe and FirmwareUpgradeTool.exe). Start with the USB drivers, then Firmware upgrade tool, then the latest firmware as described in the next procedure.

Information on this page is for the IsatPhonePro, not the IsatPhone2.  The USB drivers, upgrade tool and firmware for these 2 phones are not compatible. See for the IsatPhone2 upgrade procedure.

Upgrade Procedure:


Download, then extract and install the USB drivers:

Hint: For Windows 8 & 10, or when struggling to install USB driver, right click on the Setup.exe application. Select Properties, Run As Administrator, Set Compatibility Mode, for All Users to Windows 7.   Then run the Setup.exe application. (It might be required to also Disable UAC (User Account Control) in Control Panel>Users.)


Download and install the firmware upgrade tool in the following ZIP file:


Disconnect the IsatPhonePro from the PC if it is still connected.

Download and extract the firmware in the following file:  prod-build-v5.11.0-DFU.fpk
(note the location where you extracted the firmware e.g. the Desktop or My Documents folder)

Start the "IsatPhone Pro firmware upgrade tool" by going to "Start > All Programs > IsatPhone Pro > IsatPhone Pro firmware upgrade tool".

Select the firmware upgrade package from the location where you extracted it to.  Then follow the instructions.

When it gives you the message that the upgrade is complete, you can check the new version is successfully installed (MENU>SETTINGS>ABOUT).  It should be version 5.8.0. (or later, e.g. 5.11.0)Version 5.8.0. fixes connection issues and is mandatory.  Version 5.11.0 fixes some minlor bugs.

Congratulations, your IsatPhonePro is now upgraded! 

© 2016 Zippisat - Satellite Communications division of NSK Systems Services