I was working on upgrading my Anet A8 to a RAMPS 1.4 running on Marlin. I had everything ready to go and had plugged it in to see if it worked. It seemed to be working so I tried to home it and my y end stop was not on. The printer ground for a second and before I could stop it the whole thing shut off. Now it won’t seem to turn back on. I had originally though it was an issue with the power supply, as I plugged it into my computer and it worked fine. But now when I plug it into my computer the backlight comes on and it shuts off. On the Arduino Mega the only lights that come on are two red ones. Does anyone have any idea what may have caused this?