How to Turn Off the GPS Locator with an iPhone 4
The iPhone 4, a cellular phone made by Apple, comes with GPS technology built in. It uses this to help locate your position as you move, by combining it with information from nearby Wi-Fi hotspots and cellular towers. GPS information allows you to do tasks such as orient yourself in an online map or find directions to a location. If you don't want the iPhone to track your location, you can easily disable the GPS feature.
Press the "Home" button below the screen on your iPhone 4.
Tap the "Settings" icon on the home screen.
Tap "Location Services."
Tap the "Location Services" option to "Off" to disable the GPS locator.