My film comes out black, help!

Ever since a couple days ago my instax mini 8 camera was starting to blink the settings lights,(just so you now it worked perfectly fine the day before it started acting like this) i tried fixing it by open up the camera(i did this because i saw some people had the same problem and had posted youtube videos about how to fix it) and do exactly as they did in the videos and placed everything in the right place, and now every time i try turning on my camera it starts taking pictures, WITHOUT ME PRESSING THE BUTTON, and the film/pictures comes out, and turns black, please help a friend in need!!