If your contacts information is somehow erased, how to restore iPhone contacts information listed in the paragraphs below will help you retrieve this valuable information. You can go to the website for iTunes and use the option that is offered to restore the lost data. This will only work if you have used the back-up option and have the files stored. When you upgrade iTunes a back-up file is automatically created for you. Using this back-up system will save you the time it would take to individually type in each of your contact’s information again.
Go to the iTunes website and download the latest version onto your computer. Find your USB cable and connect your iPhone to the computer. If you have wi-fi you will not have to connect via cable. If the iTunes did not launch automatically, then launch it. The software will display on the panel on the left under ‘devices’. Go to the summary tab and select restore. Do not select the option to make a back-up. Tap the option restore to confirm that you wish to run the restore process. The last back-up which includes your contacts information will be restored to your iPhone. The iPhone will restart and display the logo for Apple.
The iOS Setup Assistance of iOS5 should be followed when offered. If you have your device connected to your computer via USB port, wait until the message ‘iPhone is activated’ appears on your screen before disconnecting the device.