At the bottom of the screen in yellow text it'll say, wiping cache, formatting cache . Count ten seconds then once again hold the power and volume up key simultaneously. The phone will restart and once you feel it vibrate this time let go of both buttons.

If this method didn't works, there's a likely chance that you or someone else dropped this phone.
Go into a well lite area and examine the LCD panel located under the glass screen to see if there are any hairline cracks.

New year, new breeze, same grass, old trees. Do something to help somebody.