Chosen Solution
#2 gold pin is pushed in. Can it be pulled back out? Mac isn’t charging. I’m assuming this is the problem.
Unplug the Mag-Safe adapter then use a wooden tooth pick to push the pins in and see if you can get it to release. The # 2 & 4 pins are the pins voltage is carried through. Heres the pin out: https://en.wikipedia.org/wiki/MagSafe
I’m pretty confident that’s why it’s not charging too. It’s easier to just replace the DC-IN board on that model. It’s about $15 on eBay for the part and the guide is of course on here. I have attempted to pull pins out, never had any success personally.