Trying to De-solder an Xbox Elite series 2 gaming controller.

[TjMOTS]

Hello my name is Tj and I'm very new to electronics and honestly forums in general. I just recently finished my first project which was an alarm clock soldering kit from Amazon. My friends Xbox controller is broken and me just finishing this clock figured I could help him out. I think I found the component that is the cause but I can't get the solder to melt and stick to my solder wick. I can't even get it to melt when I stick the iron straight on it. I'm using a X-tronic model #3020 soldering iron controller at 450°C. Any help would be appreciated.