My cousin just gave me his broken iPhone 4. He replaced the lcd, but accidentally screwed up a capactior on the logic board. The only way to get it to turn on is to plug it into an outlet charger. Once i disconnect it, it will shuts right off. I've changed the battery already and there are a couple missing screws. Please let me know if the red circle piece i've circled in the picture is repairable and does anyone know what's it called/do? One picture is how a motherboard should look like and the other picture is what I am facing right now. Thank you!