Ramps Endstop Short (1 reply)

I apologize in advance if this topic has already been posted, I couldn't find anything that really applied to my situation.

So I have a folgertech prusa i3 that has been working great, but I switched out one of the endstops while it was on and I presume that I shorted some of contacts with my fingers (dumb dumb, I should have unplugged the machine but I was to lazy). Upon brushing the contacts the screen went entirely white, I tried to reset, and then tried to reload marlin on the mega, but avrdude could not locate the mega and device manager was showing that an unknown device was plugged into the com.

I removed the ramps board from the mega and tried communication again and it worked! but then upon putting the ramps board on again it failed. interestingly I found there to be a slight image on the display screen when I reassembled it, and upon turning the pot I was able to see that the normal status display was being displayed and I scroll through the menus. But I could not control the motors or access the SD card.

Does anybody know what exactly I may have shorted with the endstop? it seems that arduino is working but not the ramps board, is this true? Looking at the ramps schematics it looks like the endstop current just goes right back into the mega so how could it harm the ramps? Do I need to replace the ramps, the mega, or both?

Thanks so much!