Help Probably water damage but just making sure.


Hello I just received the maxx about two weeks ago and I dropped it in water for no more than 3-5 seconds. It was submerged and I couldn't get it into rice till several hours after. After ricing the phone it had worked like it was new, until I attempted to use the camera. The camera only works on the front. Being a little skeptical I downloaded an app to dig into my hardware, only to find that my rear camera doesn't even show up. Is there anyway that ricing it even more would help? Or has the rear camera and flashlight become fried?
A swift response is much appreciated because claiming insurance would be easier.