Android is a popular set of software used widely on several models of smartphones. If your phone starts experiencing problems or crashes frequently, you can perform a hard reset on the device. A hard reset completely removes anything you've saved to the phone and restores the Android to its factory settings. Only use a hard reset as a last resort, as you will have to re-register the phone and re-download any applications and updates.
Press and hold the red power button for three to five seconds to shut down the Android phone.
Press and hold the "Home" button and the red power button simultaneously. Continue to hold the buttons for approximately 25 seconds. Hold until you see a triangle and an exclamation point appear on the screen. Release the buttons.
Slide out the phone's QWERTY keyboard. Hold down the "Alt" button and press "W." The Android phone resets itself to factory settings, wiping any saved variables from memory. This includes apps, updates and saved contacts.