To avoid injury, read
Install the SIM card
If you were given a SIM card to install, install it before setting up iPhone.
A Micro-SIM card (iPhone 4 and iPhone 4s) or a Nano-SIM card (iPhone 5 or later) is
required in order to use cellular services when connecting to GSM networks and some CDMA
networks. An iPhone 4s or later that's been activated on a CDMA wireless network may also use
a SIM card for connecting to a GSM network, primarily for international roaming. Your iPhone is
subject to your wireless service provider's policies, which may include restrictions on switching
service providers and roaming, even after conclusion of any required minimum service contract.
Contact your wireless service provider for more details. Availability of cellular capabilities
depends on the wireless network.
Set up and activate iPhone
Activation can be done over a Wi-Fi network or, with iPhone 4s or later, over your carrier's cellular
network (not available in all areas). If neither option is available, you need to connect iPhone to
your computer and use iTunes to activate iPhone (see the following section).
Set up and activate iPhone. Turn on iPhone and follow the Setup Assistant.
The Setup Assistant steps you through the process, including:
Connecting to a Wi-Fi network
Signing in with or creating a free Apple ID (needed for many features, including iCloud,
FaceTime, the App Store, the iTunes Store, and more)
Entering a passcode
Setting up iCloud and iCloud Keychain
Turning on recommended features such as Location Services and Find My iPhone
Activating iPhone with your carrier
Important safety information
on page 147 before using iPhone.