Follow the steps below on how to enter the SIM PIN on the Iridium 9505 & 9505A.

Step 1: Enter the SIM PIN Code

1. Enter 1111 into the phone and press the “OK” key.
2. The phone will now be unlocked.

Step 2: Disable the SIM PIN prompt on the phone

This will prevent the phone from asking for the SIM PIN again.

1. Make sure you are at the home screen (press and hold C button for a few seconds).
2. Press "Menu" key.
3. Scroll to "Phone Setup" and press the "OK" key.
4. Scroll to "Require SIM Card PIN" and press the "OK" key.
5. Scroll to "Off" and press the "OK" key.
6. Enter PIN "1111" and press the "OK" key.
7. Completed will appear on the display. 
8. Power phone off and on to verify you are no longer being prompted to enter SIM PIN.