The iPhone features a touchscreen that allows you to control your phone’s functions. The digitizer is a layer of specialized material that is located just under the glass of your screen. The digitizer is responsible for translating the electrical signals from your touch to commands on your phone. If you dropped your phone and cracked the glass, you likely broke the digitizer. An iPhone with a non-responsive touchscreen is also often due to a broken digitizer. Launch your phone with iTunes to get into the contents of your phone, such as your apps, and create a backup of your phone’s content.
Attach your iPhone to your computer using the supplied USB cable.
Click “Start,” “All Programs” and select “iTunes.”
Click the “iPhone” icon under “Devices” from the left-navigation of iTunes.
Click the desired tab from the iPhone top menu, depending on what you want to access. You can view info, apps, ringtones, music, movies, TV shows and photos of your iPhone through iTunes.
Right-click the iPhone icon in the left-navigation and select “Back Up.”