My usb port isn't recognizing anything

If there is no indication by the laptop software that a device is being tested (aka you plug it in and NOTHING happens, no popups or wait messages) test the power on the port, either with a device that has a light that comes on when connected to usb power or a USB power tester. I bought one for a problem just like this (they are cheap on Amazon) Use it to check if power is even making it to the port. If you decide to go with a USB power tester, get the one that also checks data positive and data negative. This will help narrow down which path is bad.

If you getting any issues on this check, visually check the port itself for cracking, bent center board, or dirt/scratches on the connections. I have had USB ports with the copper worn off the center board, or the center board had cracked and the leads had broken.

If everything looks good, check to see if the port moves at all after you put in a device. Sometimes if there is enough room it can wiggle loose from the mainboard and no longer make a good connection. If you suspect that you will have to remove the mainboard and check the mainboard for damage at the USB port connections.