1) Are you upgrading from an older iPhone?
Yes. Go to step 2
No. Go to step 8
2) Make sure you back up your old iPhone first
If you're upgrading from an older iPhone, you can transfer all its apps, data, and settings to your iPhone 5s or 5c. But to do so, you'll need to make a backup (via iTunes or via iCloud) of your information.
3) How to back up an iPhone using iTunes
It's worth checking that you are running the latest version of iTunes before you start. Select iTunes from the menu, and Check for Updates. To make a backup, or update an existing one using iTunes, connect your old device to the computer you normally sync it with via USB, open iTunes, select the device, and press the Sync button.
4) How to back up an iPhone using iCloud
If you are running iOS 6 or iOS 7 chances are you will already be backing up on a daily basis via iCloud. Check that it has recently backed up: your device will automatically make an iCloud backup once a day as long as it's locked, plugged in, and connected to a Wi-Fi network, and as long as you have sufficient space available in your iCloud account. It it's not updated recently you can manually force a backup by opening Settings and navigating to iCloud > Storage & Backup, making sure iCloud Back up is on, and selecting Back Up Now. Backing up via iCloud may take longer than via iTunes, especially if it's the first time, so if you are in a hurry it may not be the best option.
5) How to set up your new iPhone
Turn on your new iPhone 5s or iPhone 5c by pressing the oblong on/off button at the top right of the device. Once the device is on, swipe where it says 'Slide to Set Up'. Apple will now take you through a number of options including language and country, connecting to WiFi, Enabling Location Services, and then the option to Restore from iCloud Backup, Restore from iTunes Backup or Set Up as New iPhone. Since you have a back up, pick the relevant option (we'll discuss setting up as a new iPhone below).
6) Restore your new iPhone from an iTunes backup
Connect your iPhone the computer that you backed up your old iPhone to. iTunes will check that you want to restore from backup of set up as new. Select the Restore from this backup option. While the restore process is taking place the iTunes progress bar may pause, it may just need more time, so don't unplug your phone. When the restore process is complete your new iPhone will start up. Keep the device connected to iTunes to sync your music and other media files.
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