Hey guys. Last month I received a non working Ds Lite from one of my nephews, it doesn't start neither charge, something was giggling inside so I open it to find this inside.

Don't worry, I won't ask "from where this part is?" Because I know that's impossible to tell. Lol
I have 3 options for this.
1- search more carefully to see from where this comes (I have search once.
2- buy a new board and replace this one (try to search for one and came just with a lot sold as is)
3- take it to a repair shop and let them do the work.
I thought that it had a blown fuse, but now with this I don't know.
What you guys think I should do?