Phone restarting after charging port replacement

I’ve seen similar questions, but no definitive answers on them. I received an iPhone X that worked all except car play after having a drop of coffee spilled in the charging port. I couldn’t find any solution to this software wise, so I replaced the charging port.

I gave the phone back and now the phone seems to keep restarting after a minute or two. I tried all the possible software fixes and they didn’t work, I also looked at the board and it still has all the black covering on it so I couldn’t see any issues with it.

I’m hoping someone has any experience with this as at this point I’m stumped. Is it maybe possible I got a part charging port and that’s what’s affecting it? Should I strip off the black covering on the board and look deeper? I’m looking for anyone’s insight who may have been in a similar boat, or at least have a better idea than myself. Thank you.

Also I’m not sure if it will help but it’s a model A1685 and had no prior repairs done to it. I can also provide pictures if needed.