Hard Reset Microsoft lumia 640 XL - factory reset via settings

How to erase everything from yout device? How to wipe Microsoft Lumia 640? How to perform hard reset opeartion? The easiest way to completely clear your smartphone. This is operation that allows you to bring your device to the state it was in right out of the factory floor. More info: http://www.hardreset.info/devices/microsoft/microsoft-lumia-640-xl/