Can I replace the port for the lcd screen?

william, unless you have the right tools, like a stereo microscope, an extremely fine soldering iron and a very steady hand, I'd advise against it. You may have to either find someone who can do it for you, as well as trying to find the part. This by itself may be a challenge. I have previously had a board with similar issues. The clip holding the cable in, had broken. I replaced it with a spare clip from an old board. It's a PITA and you still need something with a very good magnification. You can also try to hold the cable down with some Kapton tape, or similar. I'd stay away from any kind of Krazy Glue. If that will not work for you, you may have to replace the board. Hope this helps, good luck.