Use the following steps to insert a SIM card into your Cradlepoint modem.
Important: Locate the SIM-card slots on your modem or SIM card carrier before beginning this procedure. SIM-card slots are marked to indicate their purpose. For example "SIM 1" and "SIM 2", or icons showing numbered SIM card symbols. Only insert your SIM cards in the slots marked for SIM cards or your SIM cards will not function.
Gently slide the SIM card into the modem's labeled SIM-card slot. The orientation of the SIM card's contacts and notched corner vary between modem models. See your router's Quick Start Guide for specific instructions on your device's SIM card orientation and installation.
Carefully push the SIM card into the labeled SIM-card slot in the modem until you hear a click. The click indicates the SIM card is fully inserted. If you do not hear a click it means the card has not been completely inserted and will not function. There should be only a small portion of the SIM card visible from the modem's SIM slot when the SIM card is fully inserted.