Old thread but for anyone in the future asking this, I had the same problem and replaced the charging port. There's a good YouTube tutorial here and I found the part on Newegg here. I bought from that seller and had no issues. The replacement itself is pretty easy and it seemed to fix the problem.
Hardest part was getting the back cover off. Other than that it was pretty easy. Though the adhesive came off the contact for what I assume is wireless charging and now that doesn't work. I can probably go back in and align it properly but for now it's not that big of deal. Word of advice, unplug the battery connector before removing the battery. I kind of ripped it out accidentally and thought I'd torn it but it went back in no problem. Hoping the new battery will help my random reboots. My old one was a little warped. Thanks for the guide!
