How to Install ( Insert ) and remove SIM Card, Battery on Samsung galaxy note 3:
Installing / Insert the SIM or USIM card and battery
1. Remove the back cover
Be careful not to damage your fingernails when you remove the back cover. Do not bend or twist the back cover excessively. Doing so may damage the cover.
2. Insert the SIM or USIM card with the gold-coloured contacts facing downwards.
3. Push the SIM or USIM card into the slot until it locks in place.
Do not insert a memory card into the SIM card slot. If a memory card happens to be lodged in the SIM card slot, take the device to a Samsung Service Centre to remove the memory card.
Use caution not to lose or let others use the SIM or USIM card. Samsung is not responsible for any damages or inconveniences caused by lost or stolen cards.
4. Insert the battery and Replace the back cover.
Removing the SIM or USIM card and battery
1. Remove the back cover.
2. Pull out the battery.
3. Press the SIM or USIM card gently with your finger, and then pull it out.