How to reset to factory settings your Android device

If you are experiencing recurring malfunctions with your smartphone, it might be necessary to perform a hard reset. This procedure is the same for most Android phones but it is worth noting that before you perform a hard reset you should backup your phone, as all your personal data and settings will be erased.

How to reset to factory settings from settings?

Go to Settings > Accounts > Backup and Reset.
Tap on Factory data reset.

Note that: On some phone models, this option can be accessed from the privacy settings.

How to reset to factory settings from the device?

Turn off your device.
Press and hold the Up volume button and Power button simultaneously for a couple of seconds.
Wait until the logo is displayed to release the Power button (but keep the volume button pressed).
A menu will then be displayed.
Move across the menu using the Volume keys.
Click on Wipe Data/Factory Reset and validate with the Power button.