Hello, and thanks for the reply. I'm sorry if I was being unclear, even when I lock exposure it seems to switch to auto exposure as soon as I press Start. The reason I said it is "over exposing" is because that is what is happening, it changes from locked exposure to auto exposure, and in the process it over exposes. Here are sample screenshots of what I mean:
The second photo is out of focus because the phone moved as i took the screenshot.