Screen colors all messed up after dropping it
I was unfortunetaly very clumsy today and dropped my Iphone 4S. Even though it had a thick case on the top right corner got a scratch and now the screen shows messed up colors. At first it was all white and I could only see the date at the top. Now I can kinda use it but it's hard to see well and a part of the screen doesn't show at the right bottom. The screen isn't shattered so I'm guessing it's a more internal problem, right? I don't know what to do as it's a phone I bought at Apple store in Canada and I now live in Thailand where there is no official Apple store. I'm still under a regular 1 year warranty. Can somebody advise me what to do? I'm very worried and don't have any friends with IT knowledge here...