I have a dead pixel on my iPhone 4S will they replace my phone?

I've had my iphone for about 3 weeks now and I've found a dead pixel and I'm wanting to take it back to get a new one. But I've got a minor chip on the back of the phone at the top of the plastic outline bit which holds the glass on the phone, it's not smashed or anything just got a little chip about 1mm big and I'm worried they won't replace it just cause of that? Will they make a fuss about it?

Take it to the Apple Store, let them have a look at it. Chances are that if it's still in warranty they'll replace it no problem.

Don't worry take it to the apple store they will have a look at it replace the entire phone and put all your old stuff from your old iphone to the new one or they will simply fix a dead pixel is covered by the warranty