OK, I had my kids running around my room and kept tripping on my laptop’s schematic drawing for kids gradually cable. Then DC power jack was damaged. I had to always keep pressing the jack in order to charge my laptop.
400 by asking professional, you have option to do it yourself. I had never desolder anything before, but was able to somehow desolder the jack. So I did permanent fix using modem port in my latest instructable. You can observe the damaged DC jack on the back of my computer. The new DC jack shows how it is supposed to be. Materials required for this instructable are following. You can google and find cheapest source.
The reason why you need pen and pencil is that you need documentation. You will find yourself with extra screws and non-functional laptop if you don’t. Look around and write down schematic diagram of your computer. You will assign screw numbers and mark them into your figures as you disassemble. Remove hard drive, optical drive, battery, and what ever you can remove.
Remove screws and assign screw number. Place screws into corresponding disposable cup. Take note where and what type of screws were there. Observe how the plate connector is fixed to computer body.
My case was that the back of hinge had place to pop up. Very gently slide flat drive in and gradually lift it until the plate pops up. Reverse the laptop and remove the plate connector. Remove the cables and plugs attached to the plate. The mechanisms how plate connector is affixed to body of the computer varies. Some manufacture is more difficult than the others. Do not force pulling the plate out.