have you checked. if it is bent you can sometimes bend it back up and straighten it but its got to be done very gently with two flat blade precision screwdrivers like the ones for glasses and has to be right in the middle and straight, can be a nightmare to do But i have done many in my time. if when putting back in it seems to not want to go in don't force it look back into the hole and see if its leaning very slightly one way or the other.
you can buy replacement ports on line but I cant remember the name of the connector type right now. you can take the end of the dash cam off without any dismantling to get to the port. there is a little clip if you hold that in slightly and use something sharp you can pop the cap off. Again you have to be careful not to damage the clip use a flat blade screwdriver the same size as the plastic clip. you will need to pry slightly to pop the clip over the catch. I did this to remove the cover as I am always removing the SD card and got sick of removing the cables to get to it.
to remove the cap use a little washing up liquid to lube the two hooks inside then push one into the hole and push it through with a metal ball point pen then the other tag should follow. Again a little awkward specially with lube but better for the cable. and it means you can put the cover back on if you ever wanted to sell it.