After a fresh install, your device greets you with a screen displaying 'Hello' and 'slide to set up' in a variety of different languages.
Drag your finger to the right, along the 'slide to set up' text, to access the next screen. Your device asks you to pick your language and country, along with your Wi-Fi network. The device checks for any Wi-Fi networks to which it can connect; to move forward, select a Wi-Fi network and tap the Next button. (You can also choose to set up your iPhone over a cellular connection by tapping the Next button without selecting a network, or set up using iTunes by tapping the Connect to iTunes button at the bottom of the screen.) You're also asked whether you'd like to enable Location Services. This allows Apple apps (and third-party apps) to access your location via Wi-Fi networks and your Global Positioning System (GPS) location.
You can always enable or disable these on an app-by-app basis, and you can configure this option in more detail from the Settings app.
From here, you have three choices: You can set up your iPhone from scratch, or restore from an iCloud or iTunes backup (if you had a previous iPhone you want to restore data from).
START FROM SCRATCH If you want to start fresh, the first thing you need to decide is whether to supply an Apple ID (or create one, if you don't have one). You use your Apple ID to buy music, apps, and books from the iBookstore, and you can associate it with iCloud if you want to.
If you already have an Apple ID, tap the Sign In with Your Apple ID button and enter your username (usually your email address) and password. Apple then spends a few moments linking your device to your Apple ID. If you don't have an Apple ID, it's easy enough to create one by tapping the Create a Free Apple ID button. You then enter your birthday, name, and email address (or you can create a new iCloud email address), as well as a password, a security question (in case you forget your password), and whether you'd like to receive email updates from Apple.
And if you'd rather not set up an Apple ID, you can tap the Skip This Step link below the two options. You can always add or create an ID from the Settings app later, but note that you won't be able to buy anything on the iTunes Store or set up iCloud until you do.
RESTORE FROM iTUNES If you have an iTunes backup of an older iPhone, select this option and connect to your computer. You'll see a screen asking if you want to set your phone up as a new device or restore it from a local backup.
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