HTC Titan User Manual page 12

12 Getting started
3. Insert the SIM card with its gold contacts facing down and its cut-off corner
facing out.
4. Push the SIM card all the way in.
Removing the SIM card
Make sure to switch off your phone before removing your SIM card.
1. Take the bottom cover off.
2. Take out the battery.
3. With your thumb, slide the SIM card out from the SIM card slot.