'''++@marina123++'''
use this guide [guide|53917] to get to the port. It is soldered to the mainboard. You could check and see if a resolder might fix it (if one or two of the contacts are loose). Worst case would be to replace the port. Hardest part on that would be to source a replacement. Once you have the board removed, post some images of your port etc. with your question. That way we can see what you see. Use thius guide [guide|21499] for that. We might find other solutions based on what we see.