Question Pin of laptops charger is getting hot

[Retr042]

->It stops charging after like 10 seconds
->2 weeks ago it only happened when i use to play some game but now its everytime
->I have used my friends charger and it works perfectly fine so no issues with my port
->I tried cleaning it but i didnt think i did it properly cuz the gap is very thin

 

[Etrius vanRandr]

Probably a bad charger then, order a replacement from eBay.

What is the model of laptop?