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i dropped my phone about a week ago and since then the back camera and flashlight are not working. Also, there is a little yellow triangle over the flash icon, saying its too hot and needs to cool down. What should I do? Take it in and have it fixed at Apple for lots a bucks or is there something else i should try first??

Definitely I would look into replacing the camera. Here is the guideyou would need as well as the part. If you do not have the tools, there are links provided on the part page. Good luck!