lg v60 Broken u.fl connector how to fix?

I was working on my LG v60. I was putting it back together and finishing up the repair. There is a little antenna cable that runs up both sides of the phone. The one on the right side the connector broke. It looks like the whole thing came off. Is there any way to repair this?

I was reading some stuff that popped up on Google. If I am not mistaken it looks like people are taking Demo units and flashing them to working phones. Is there any way I can take a demo logic board and flash it to a Verizon firmware?