USB Port not working, PC and PSP not detecting eachother.

Hey! So, i might have dropped my PSP a couple of times, and now the USB Port is not working. The PSP is not detecting the PC and vice versa. Ive been looking for a replacement guide, but couldn't find one... I've tried with different computers and cables, but its not working. Any advice?

Thanks!

P.S: I can't take it back to Sony, as it runs CFW, and the warranty is expired anyway :)