How to fix a dead usb port on PS4?

First, to test if the USB is truly dead, I would try plugging a USB phone charger into the port. Plug your phone on the other end. If the phone charges, its alive. If the phone does not react (like if you plugged it to a wire that is not wired in anywhere), first check if there is gunk in the port. Flash a flashlight straight in and it should be relatively clean. If it looks relatively clean, your port is truly dead.

From there, you got a few options:

• If on warranty, send your PS4 back to Sony for a repair.
• If not, you could try replacing the port yourself or go to a local geek shop that does repairs. That will very probably void any warranty (its pretty much open heart surgery on your PS4), so the other option is preferable if you got one.

IMO, if you dont have warranty I would not risk it. A switch that big just to bring back a USB port (when you have others you can use) and has chances to kill your console seems very risky.

It happened to me too, i found the recommendations at the link below very useful https://careergamers.com/how-to-clean-the-ps4-controller-usb-charging-port/

If the port turns out to be really broken and the problem is only charging two controllers with one port then you can take a look at dualshock twin charging station. There are many available and they are quite affordable.