Fault with IsatPhone Pro firmware

We have just received this service bulletin from Inmarsat about a firmware fault in the recent production batches of IsatPhone Pro satellite phones. Please check your phone’s IMEI number and make sure you follow the instructions in the message below:

Fault with IsatPhone Pro firmware

Please be advised that a fault has been 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 phone unless a new, pre-charged battery is fitted. A new version of the firmware which will resolve this problem is expected to available for release by 8 February 2013.

Only a small number of IsatPhone Pro units are affected by the fault. They are those handsets shipped since 7 September 2012 with IMEI numbers above 353032041133824 (operating with firmware versions 5.1.0 or 5.2.0). Handsets manufactured before 7 September 2012 will recharge as normal, switched on or off, with all firmware versions, including 5.1.0 or 5.2.0.  No action is required for users of these handsets.

You can check a handset’s IMEI number in three ways:

  • Printed on the label on the original presentation box
  • Printed on the label inside the battery compartment
  • Through the phone menu (under Settings > About).

Users with an affected handset are advised to follow these simple guidelines:

  • Keep the phone switched on during charging
  • Maintain a full to half-charge until their IsatPhone Pro has been upgraded with the new firmware.

All IsatPhone Pro users are requested to upgrade to the new version of firmware when it becomes available on 8 February 2013. Version 5.2.0 has been withdrawn in the meantime.

Inmarsat apologises to customers for any inconvenience. We will send a further communication to advise on upgrading once the new firmware is available.