Reset an iPhone 4
There are two types of resets that can be performed on an Apple iPhone 4. A soft reset is one that can be performed to free up used memory, such as memory being used by programs being run in the background. This will not delete any information from the phone. A factory reset restores the phone to factory settings and makes it unusable until set up with an iTunes account. This deletes everything from the phone.
Instructions
Soft Reset
1. Locate the button on the top right of your phone and the button on the front screen of the phone.
2. Press and hold those two buttons together. You will see the prompt come on the screen to "Slide to power off." Do not slide and continue to hold down the buttons until the screen goes black.
3. Press and hold the button on the top right of the phone to power it back on. You will see an Apple symbol on your screen while the device is powering up.
Factory Reset
4. Connect your iPhone 4 to your computer via the USB data cable designed for your device.
5. Open your iTunes program if it does not automatically open when you connect your phone.
6. On the Summary screen for your iPhone, look under the section labeled "Version."
7. Click on the "Restore" button.
8. Your iTunes will prompt you to either "Back up" you information or "Don't Back Up." If you back up your information, iTunes will be able to restore from the backup after you reset your device. If you choose to continue without a backup, all information will be deleted forever. Your device will then take a few minutes to erase all information and programs off the device, then will restart to a screen with a globe and a picture of a USB cable that reads "Please connect to iTunes." At this point, you know your device has been restored to factory settings.
Tags: your device, button right, factory settings, from phone, iTunes will, phone factory