Aporte original por: TechTalks ,
From what you are saying, it is most likely that the card reader is fried from heavy use by the previous owner(s). You generally cannot fix it separately. The best option would be to buy a new motherboard off ebay. They typically cost from 10-30 dollars used. When you are looking, look at the pictures of the listings with the left Styrophome cover is not damaged. This is the piece that will detect a card has been inserted. If you don’t think getting a new motherboard is worth it, look at your old one and see if any wires are frayed on the left hand side. Good Luck and tell me how it goes!!!