Did you know that all Nokia Lumia Windows Phone devices have steps for performing hard reset? Hard reset is suggested only if the phone has stopped responding or is behaving erratically for some reason, which cannot be rectified with a soft reset. Here are the steps on how to hard reset your Nokia Lumia Windows Phone.
* Switch off your phone.
* Press and hold Camera + Power + Volume Down buttons.
* After few seconds, the phone will vibrate.
* Release the Power button alone holding the Camera and Volume Down button.
* After 5 to 10 seconds release both the buttons.
We still suggest you to perform a force soft reset in case your phone is behaving abnormally by pressing and holding the power button for 10 seconds. This will reboot the phone.