ramps 1.4 HELP

OK so I'm new to reprap and have finished building a Prusa i3 rework. I hook up the electronics to test them thing were going good and then i pushed a end stop switch and heard a feint snap sound. Now when i try to connect through pronterface it does not connect. Please help and i sure hope it not as bad as i think it right...

My guess is that your endstop was mis-wired, and connected +5V to ground when you clicked it. To quote Doctor McCoy, it's dead, Jim. Fortunately, there are several other people who have made the same exact mistake, and you can find details on what part(s) need to be replaced on the board by scrolling down to the RAMPS support forum on this site.....

ok thank you