How to repair an electronic device works perfectly

And look the bottom of the battery slot you see missed the right metallic tip, I replace one that I made this metallic thing that you see I made from paper clip

So you got a paper clip, this one you have to peel off the plastic that cover its. 

And you gonna have to have a round nose pliers to make the coil of the metalic contact, and you gonna do for the battery fits perfectly in the slot. Rute Bezerra de Menezes Gondim