Want to sell your iPhone? Every time you succumb to the tempting offer of replacing your phone with a new one you should remember that this is a mobile device that hides a lot about you that you might not want to share with the unknown face who will succeed you as user of. Plus, your new phone might be nice, but you should also make it personal.
To replace your personal iPhone with the newest model, you should delete all your personal information forever after you have copied. With your Apple ID weapon and your password, start by downloading your backup. You can back up your disk (with iTunes) or iCloud. Step by Step Apple's instructions are posted at http://support.apple.com/kb/HT2109
As you will see, you are initially invited to turn it on iCloud Backup, connect it iPhone in the power and turn on Wi-Fi to connect. Then select the option Back Up Now to start transferring stored messages, e-mail accounts, photos, notes, paid apps, and other personal settings.
Life with your new iPhone will start with… deleting all its content and settings, in case you were tempted to play with it for a while, before you get ready to transfer all your valuable personal information. This is because you have to accept his help iOS Setup Assistant who gives you the choice to do Restore from iCloud (or iTunes) Backup with Apple ID and password per hand.
After your files are recovered, you'll need to connect your phone to iTunes on your computer to transfer files that you didn't buy from the iTunes Store or the App Store, such as music, videos or apps.
Remember that after the order Erase All Content and Settings, iCloud, iMessage, FaceTime, Game Center, and other services are disabled. After you provide the password, the Find My iPhone service will no longer recognize the device as yours, so that the next owner can activate it for account of.
Keep in mind that if you sign in to iCloud and start manually deleting photos, videos, contacts, documents, etc. from iPhone. you will lose them both from iCloud and other devices.
It is also interesting to know that if you forgot to delete everything from your phone and were using iCloud and Find My iPhone, you can delete the content remotely (icloud.com/find) and then delete the device from your account. If you can't do that, you should at least change your Apple ID password so that the new owner of your old device can't delete your files from iCloud. See Apple's instructions at http://support.apple.com/kb/HT5661
