Iridium 9555 & Iridium Extreme - "Phonebook Failed To Initialize" Error

If you are unable to access your phonebook from the Menu, or make modifications, and get the Error "Phonebook failed to Initialize", then follow the steps below:

1. Power the device on.
2. From a blank screen, dial *#323# 
3. Press the green button you would use to initiate a call.
4. Go to Menu > Phonebook and confirm that the error is no longer presented.

If the issue persists, please contact support.