KVH Industries TracPhone FB250 User Manual page 42

Chapter 2: Getting started
Wrong PIN
You have 3 attempts to enter the PIN in the web interface, before you are
asked to enter the PUK (Pin Unblocking Key). The PUK is supplied with your
SIM card.
Enter the PUK followed by a new PIN of your own choice. The PIN must be
from 4 to 8 digits long.
If you enter a wrong PUK 10 times, the SIM card will no longer be functional,
and you have to contact your Airtime Provider for a new SIM card.
Entering the SIM PIN for the terminal 29