@tinsae this sounds like you have a broken wire. You did not tell us which end of the charger but I suppose you are talking about the one with the adapter that connects to your computer. What you can do is to cut the cable past where you bend it, strip the insulation and connect a new barrel adapter to it. You would need a 4mm x1.35mm barrel adapter to solder the stripped cable to. It is not a very complicated repair and would keep your AC adapter around instead of going to eWaste. Of course you can always replace the complete AC adapter but that somehow defeats the DYI purpose :-)