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1. Power the Iridium 9555 handset on.

2. Connect the Iridium 9555 handset to the charger.

3. Connect the USB cable between the PC and the Iridium 9555 handset.

4. If you have not used the PC for data connections using the Iridium 9555 handset before, proceed to step b). If you have used the PC for data connections using the Iridium 9555 handset before or installed Iridium firmware before and are having problems upgrading, proceed to step a).

a. You need to remove the previously installed drivers.

i. Set the phone to DFU mode by entering the following on thekeypad ‘*#888#’

ii. Go to your Start menu, locate Computer, right click on it and select Properties.

iii. On older versions of Windows select the Hardware tab, then select Device Manager (a link on newer versions of windows), expand the Ports (COM & LPT), Universal Serial Bus controllers, and Other devices ‘trees’, and then select Show hidden devices from the View menu.

iv. Locate any entry containing Iridium under the Universal Serial Bus controllers ‘tree’, right click on it, and select Uninstall. If an option exists to delete the driver, select this also. Respond Ok to any “Are you sure” prompts.

v. Remove and replace the battery from the phone to get out of DFU mode. Restart the phone (Which should still be connected to the PC by the USB cable).

vi. Locate any entry containing Iridium under the Ports (COM & LPT) ‘tree’, right click on it, and select Uninstall. If an option exists to delete the driver, select this also. Respond Ok to any “Are you sure” prompts.

vii. Unplug and re-plug the phone from the USB cable. This should trigger the Found New Hardware wizard.

b. The next steps depend on which version of Windows you have:

Windows XP

i. A window titled Found New Hardware will appear

ii. Select No, not at this time

iii. Click Next

iv. Select Install from a list or Specific Location (Advanced)

v. Click Next

vi. A window titled Please Choose Your Search and Installation Options will appear

vii. Select Search for the best driver in these locations

viii. Uncheck Search Removable Media. (Floppy, CD-Rom...)

ix. Select Include this location in the search:

x. Click the Browse button and browse to the VCOMPORT driver's location.

xi. Click Ok

xii. Click Next

xiii. A window titled Complete the Found New Hardware wizard will appear

xiv. Click Finish

xv. On the Iridium phone, press *#888# then the green button to manually put the phone in DFU mode. At this time windows will see a new hardware device.

xvi. Refer to the VCOMPORT instructions above and substitute the DFU directory and driver instead of VCOMPORT. When finished restart the phone and continue with the upgrade process.

Windows Vista

i. A window titled Found New Hardware will appear

ii. Click Locate and Install Driver Software (Recommended)

iii. If a User Account Control permissions window appears, click Continue.

iv. Click Don't Search Online.

v. Click I don't have the disk, show me other options.

vi. Click Browse my computer for driver software (Advanced)

vii. Click the Browse button and browse to the VCOMPORT driver's location.

viii. Click Ok

ix. Click Next

x. Note a windows security box will usually appear stating that "Windows can't verify the publisher of this driver software" Click Install this driver anyway.

xi. Click Close

xii. On the Iridium phone, press *#888# then the green button to manually put the phone in DFU mode. At this time windows will see a new hardware device.

xiii. Refer to the VCOMPORT instructions above and substitute the DFU directory and driver instead of VCOMPORT. When finished restart the phone and continue with the upgrade process.

Windows 7

Note: Difficulties have been reported opening zip files in Windows

7. It is recommended that all zip files be expanded prior to copying to the Windows 7 host. A message balloon will appear in the lower right hand corner indicating that driver software could not be installed.]

i. Click on the windows Pearl (Start Menu)

ii. Mouse Over and then right click Computer and select Manage

iii. A window titled Computer Management will appear

iv. Click the Device Manager link.

v. Expand the Other devices tree

vi. Locate the Iridium 9555 Handset and right click on it and select Update Driver Software

vii. Click Browse my computer for driver software

viii. Then click the Browse button and browse to the VCOMPORT driver's location.

ix. Click Ok

x. Click Next

xi. Note a windows security box will usually appear stating that "Windows can't verify the publisher of this driver software" Click Install this driver anyway.

xii. Click Close

xiii. On the Iridium phone, press *#888# then the green button to manually put the phone in DFU mode. At this time windows will see a new hardware device.

xiv. Refer to the VCOMPORT instructions above and substitute the DFU directory and driver instead of VCOMPORT. When finished restart the phone and continue with the upgrade process.

5. Run the upgrade tool application from within the release folder on the PC by double clicking on it.

6. The upgrade tool application will automatically search for devices connected to the PC. If more than one handset is found, the upgrade tool application will prompt you to disconnect other devices and re-start the tool to re-scan for

devices.

7. Once the Iridium 9555 handset is located, select it and press the Start button; select the “Yes” button when you see the “Are you sure” message.

8. The upgrade application will automatically detect which firmware components need upgrading on your Iridium 9555 Handset and will run through each of the required upgrades in turn, rebooting the handset automatically between each

one.

9. At the end of a successful upgrade the upgrade tool application will pop up a window saying “All upgrades complete”, click on the OK button. To check that you have the correct firmware release on the Iridium 9555 Handset view the

Phone Information Menu (Menu -> Setup -> Phone Information), this will show the new release (F/w:HT10012).

10. You can now disconnect the handset from the USB and the charger.

Note: In our experience, sometimes after some of the steps, the upgrade tool will tell you that it lost connection with the phone and needs to close. When this happens, simply close the upgrade tool, disconnect and reconnect the phone, and run the upgrade tool again. The upgrade tool will pick up where it left off.