Last Updated: May 07, 2013
Note: A hard reset should only be performed after all other troubleshooting options have been exhausted or if you want to remove everything from your unit at the same time.
A hard reset removes all information from your device and returns it to a state just like it has never been used before. All contacts, messages, emails, 3rd party applications, etc. will need to be reinstalled after performing a hard reset.
To perform a hard reset, from the Home screen, press Menu and tap Settings > Privacy > Factory data reset. Follow the on-screen prompts to complete. This process will take 5-10 minutes.
To perform a hard reset using the device keys: