Yesterday I did a master reset on my Apple iPhone and since it was late night I kept it as it is. Today when I tried to start, it won't turn on. I can see the Apple logo and it seems to be loading but then nothing happens. I first thought that it is due to low power. So I let it on charging for few hours. But even after that it is not showing me anything, Does anyone know what is going on? Can you help me in this matter?