I have a button on the left top to turn around the camera from front to back and vise versa but it constantly is on back facing(towards me) and when I click the button it goes grainy and still faces me. How do I fix this?
I assume this button you speak of is on the screen in the camera app? You didn't mention what tablet you have which might help but I suggest you go to settings - app manager - scroll to all and find "camera". Tap it and clear the cache then restart your tablet.
I still think that camera has failed. Probably a connection in the tablet but it is also not physically the same camera as the other one so anything is possible