Sales: 888 888 9162
* Mobal guarantees that the majority of profits go to charity

IsatPhone Pro Firmware Update 5.3.0

This new IsatPhone Pro firmware update is critical for any IsatPhone Pro handsets purchased since 7 September 2012.

Inmarsats’ official statement is:

“This is a mandatory firmware upgrade to prevent users being impacted by a fault in product operation and planned network enhancements.
As announced earlier, a fault was identified with IsatPhone Pro firmware versions 5.1.0 and 5.2.0 (the latest) that affects handsets manufactured since 7 September 2012.

The fault causes the battery on these phones not to charge while the handset is switched off. If the battery is allowed to run flat, then it becomes impossible to charge the battery with the phone connected to the wall charger provided, unless the battery is charged externally or the phone is connected to a USB low drip charger (e.g. laptop or desktop PC with installed IsatPhone Pro USB drivers).

For handsets in the field, Inmarsat recommends that customers upgrade their phones to this release at the earliest opportunity.”

Important Notice:

Given the replacement of firmware version 5.2.0 with 5.3.0, the upgrade deadline has been extended to 31 December 2013. As previously notified, users will experience problems connecting to the network if the upgrade is not done before 31 December 2013.

How do I check which firmware version my handset is on?

Turn on your IsatPhone Pro > Select Menu > Settings > About.

Upgrading your firmware:

To upgrade your IsatPhone Pro firmware you will first need to install the IsatPhone Pro USB Drivers.

IsatPhone Pro USB Drivers

How to install your IsatPhone Pro USB Drivers

You then need to download the IsatPhone Pro Firmware upgrade tool.
IsatPhone Pro Firmware Upgrade Tool

For instructions on how to upgrade your phone there is a guide available below.

How to upgrade your IsatPhone Pro

Firmware 5.3.0:

Download the new handset IsatPhone Pro firmware update here:
IsatPhone Pro Firmware 5.3.0

If you have any further questions please leave them in the comments section and we will endeavour to get them answered for you.


Author: Stephen Clough

Stephen Clough is the CTO of Mobal Communications Inc.

He has been selling & renting top quality satellite phone services for over 20 years and he prides himself on getting the best quality in products and technology for our customers.

Leave a response

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes:
<a href=" " title=" " rel=" "> <abbr title=" "> <acronym title=" "> <b> <blockquote cite=" "> <cite> <code> <del datetime=" "> <em> <i> <q cite=" "> <strike> <strong>


Mobal – General talk about travel and the Mobal Service.

Japan – Content related to Japan and the Japan Unlimited SIM Card.

Changing the World – Posts focusing on our unique charity.

At Last! A Japan SIM Card that's Available to Everyone

The Japan Unlimited SIM is the only SIM of it's kind that's available to non-residents of Japan.

It comes with a Japanese phone number and unlimited data. Available as a monthly ongoing service or for short term use.

Japan Unlimited SIM Card

More Info >>

Europe Plus SIM

Get fast, 4G data throughout Europe!

Europe SIM Card

More Info >>

Talk & Text SIM

The Mobal International SIM Card is convenient, reliable and offers great coverage in over 190 countries – all for just $15

International SIM Card

More Info >>