IsatPhone2 Firmware Upgrade

Version 2.00.01 of the firmware for the IsatPhone2 has been released on 24 April 2017

This is a MANDATORY firmware upgrade and has to be done by 1 August 2017, i.e. meaning that the features introduced by the firmware are critical for the functionality of the GSPS service including the network and the IsatPhone 2 handset.

Version 2.00.03 of the firmware for the IsatPhone2 has also been released but is only a small fix for Chinese characters and not mandatory. 

IsatPhone2 (Model 2.1) Firmware Upgrade

Due to electronic component supply issues, Inmarsat released IsatPhone2 (Model 2.1) in June 2018. The functionality stayed the same, but new USB drivers and upgrade & sync tools are required for Model 2.1.

The latest IsatPhone2 (Model 2.1) firmware: version 1.00.13. This firmware update is recommended.

Find the release notes for the 1.00.13 firmware here.

Find more details on how to do the IsatPhone2 (Model 2.1) firmware upgrades here. Select Model 2.1 under "Support tools" tab.

If you would like to check on which firmware your IsatPhone2 currently is, please go to MENU>SETTINGS>ABOUT.  It should be version 2.00.01.

NOTE: The latest version of USB drivers and IsatPhone2 firmware upgrade tool must be installed.

New USB drivers and a new IsatPhone 2 firmware upgrade tool were released on the 24 April 2017.

Please uninstall the current USB drivers and firmware upgrade tool, reboot, then install the new USB drivers and new IsatPhone2 Firmware Upgrade tool (Isat2v0.10).

It is not advisable to use the CD or USB stick that came with the phone since it might be outdated.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 IsatPhone2 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 IsatPhone2.

Start with the USB drivers, then Firmware upgrade tool, then the latest firmware as described in the next procedure (STEP 1 to 3).

Save these compressed USB Drivers file onto your computer, then, extract (right click, "Extract All"), then run the install programs (Setup.exe). 

Save the FirmwareUpgradeTool.exe file and run it (left double click).

Information on this page is for the IsatPhone2, not the IsatPhonePro.  The firmware upgrade tool and firmware for these 2 phones are not compatible. See the IsatPhonePRO_upgrade page for the IsatPhonePro upgrade procedure. Isatphone2 and not IsatPhonePro

Upgrade Procedure:

The 24 April 2017 release has new USB drivers and a new Firmware Upgrade Tool.

Firstly, uninstall the previous USB Drivers e.g. Press the Windows Start key, then type 'program', then select 'Programs and Features', then select 'IsatPhone2 USB Drivers', then uninstall the previous drivers.

REBOOT. Yes, please REBOOT after uninstalling the previous USB drivers.

Then, uninstall the previous Firmware Upgrade Tool, e.g. Press the Windows Start key, then type 'program', then select 'Programs and Features', then select 'IsatPhone2 Firmware Upgrade Tool', then uninstall the previous Firmware Upgrade Tool.


Disconnect the IsatPhone2 from the PC if it is connected.
Download and install the USB drivers:

You must run the Setup.exe application from the extracted folder, not directly from the comressed zip archive.

USB Drivers are compatible with Windows XP, Windows Vista, Windows 7, 8 and 10.

The new USB drivers is generic and compatible with both the IsatPhonePro and IsatPhone2.


Download and install the firmware upgrade tool in the following file: FirmwareUpgradeTool-Isat2v0.10.exe


Disconnect the IsatPhone2 from the PC if it is connected.
Download the firmware in the following file:  prod-build-Isat2-V02.00.01-DFU.fp2
(note the location where you downloaded the firmware e.g. the Downloads, Desktop or My Documents folder)

Start the "IsatPhone2 firmware upgrade tool" by going to "Start > All Programs > IsatPhone 2 > IsatPhone 2 firmware upgrade tool".

Select the firmware upgrade package from the location where you downloaded 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 2.00.01.

Congratulations, your IsatPhone2 is now upgraded!  Go outside and test the phone e.g. with a balance enquiry (dial *106#) or dial the free test number +8707 76 999 999.


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