Samsung SM-C105AZWAATT - Manual (Page 14)

7
Installing the SIM Card
When you subscribe to a cellular network, you are provided
with a plug-in SIM card loaded with your subscription details,
such as your PIN, available optional services, and many other
features.
Important! The plug-in SIM card information and its contacts
can be easily damaged by scratching or bending.
Ⅲ Carefully slide the SIM card into the SIM card socket
(as shown) until the card locks into place (3).
• Make sure that the card’s gold contacts face into the phone
and that the upper-left angled corner of the card is positioned
as shown.
Note: If the card is not inserted correctly, the phone will not
detect the SIM card. Re-orient the card back into the
slot if the SIM is not detected.