My IPhone 5s went to the apple screen logo unexpectedly and I can't get it back to the usual screen?

I tried twice to reset it by holding down the home button and the power button at the same time but each time it went back to the logo screen. What can I do?

Plug it into your PC that you did a backup on, start iTunes and see if you can restore it. If that isn't possible take it to an apple repairer