There is no way to know anything from the post, you did not provide any details or pictures, need pictures to see what happened. There is nothing fancy about fixing physical damage, you need to repair it by looking it over and seeing where it got detached. You may need to take it apart even more to get it fixed as something internal you can't reach got detached or even broken.
Do a web search on your model and see if there is a guide to taking it apart, look things over and compare to what happened to your system to find out what you need to do.