HTC ThunderBolt - Calendar

11
BASICS
2. Insert the 4G SIM card (with the cut-off
corner first and the gold contacts facing
down) into the SIM card slot.
NOTE: A Subscriber Identity Module (SIM card) is a “smart
card” that houses personal information, such as your mobile
phone number, calling plan, account information, and
content, such as contacts, text messages, and call history.