Can I fix this game camera?

Yard sale game camera for five dollars can it be fixed? I picked up a game camera for five bucks, and took it apart to see if I could find out what was wrong with it. The camera had a lot of time in the weather and I believe that just taking it apart cleared up a connection problem with the circuit board. The only thing wrong with it now is no volume, and the menu for the date and time won’t work. If you have any knowledge about these cameras leave a comment. Thanks!