Iridium 9555 & Iridium 9575 - "Phonebook Failed To Initialize Error"

If you are unable to access your phonebook from 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 no longer is presented.