my iPhone 5s screen stopped working. i don't know why or what happened but the touch screen doesn't work. since I've had the phone for less than a year, will my warranty cover it? if not what should i do?
That is something that will very likely be closely scrutinized for water and drop damage. It's possible to fail on its own right but that tends to be the biggest causes. You're still under warranty so you can have it brought in to see. If its through no fault of your own it will be covered.