***No, you should not glue down a connector to a Nintendo 3DS motherboard***
***do the following instead***
https://en-americas-support.nintendo.com/app/answers/detail/a_id/15287/~/how-to-remove-and-install-the-cover-plates-on-a-new-nintendo-3ds-and-new#:~:text=Use%20a%20size%20%230%20cross,will%20not%20come%20out%20completely.&text=Use%20the%20nub%20on%20the,the%20L%20and%20R%20buttons.