Remove the back cover of the phone, starting from the notch in the lower left corner.
Remove the battery, lifting from the notch at the top right corner.
To remove the SIM card, press the SIM retaining tab down while sliding the card from the slot.
To insert the SIM card, slide it into the slot as shown, with the gold contacts facing down and the notch at the upper left.
Reinsert the battery by placing the bottom of the battery into the compartment, ensuring the gold contacts align with the terminals on the phone, and then pressing the top of the battery into place.
Replace the battery cover, pressing around the edges to snap it into place.
The SIM card has been inserted or removed.