Learn how to perform a soft and factory reset of the device.
INSTRUCTIONS & INFO
A master reset reverts the device back to factory settings. It will permanently erase all personal data, preferences, settings and content such as pictures, ringtones and apps that are saved to the device. Data stored to an SD card will not be erased unless otherwise selected. It is recommended that you save (backup) important data to your SIM, SD card, or a computer before proceeding.
From the home screen, tap Apps.
Swipe to, then tap Settings.
Scroll to "Personal", then tap Backup and reset.
Tap Factory data reset.
Tap Reset device.
Tap Delete all.
If unable to reset the device using the above steps, try the alternate master reset method by first powering the device off.
When powered off, press and hold the Volume up, Home, and Power/Lock Keys together.
Release the keys when you see "Recovery Booting" at the top of the screen.
Press the Volume down key until "wipe data/factory reset" is highlighted, then press the Power key.
Press the Volume down key until "Yes - delete all user data" is highlighted, then press the Power key.