In this tutorial, you will learn how to:
 

When there is no SIM card in the device, there will be a No SIM notification on the lock screen and in the Expanded Quick Settings.

Locate SIM tray

The SIM tray is located on the left side of the device. To insert a SIM card, insert a SIM tool into the small hole to eject the SIM tray.

Insert or remove SIM card

Insert or remove the Nano SIM card into the SIM tray with the gold contacts facing up and the notched edge on the bottom right. Gently press the SIM card in until it clicks into place.