Resposta para "How do I get my touchpad to work again?"there may be a foreign object obstructing the clicking mechanism open up the back panel and then remove the battery first. then you should be able to see if there is any debris in the touchpad.
Resposta para "How do I repair my touch screen?"this is a hardware breakdown issue. I would say to bring it in to an expert.
Resposta para "How can I get a foreign object out of the headphone jack?"Just replace the entire board. It is much easier than trying to coax the ball out.