1. Remove the Nano-SIM card tray from its slot located on the side of the device.
   
2. Insert a Nano-SIM card into the tray, with the gold contacts facing up.
   
3. Slide the Nano-SIM card tray back into the slot on the device with the gold contacts facing the back of the device. Press until the tray clicks into place.
   
4. To insert a memory card, remove the MicroSD card tray from its slot located on the side of the device, under the Nano-SIM card tray.
   
5. Insert a MicroSD card into the tray, with the contacts facing down.
   
6. Slide the MicroSD card tray back into the slot on the device, with the contacts facing the back of the device. Press until the tray clicks into place.
   
7. If the device is powered on without a valid SIM card, the Missing SIM alert will display in the Notification bar.