Beaglebone Black Rev c doesn't boot up

I made a mistake by connecting a button and an LED to the BeagleBone Black Rev C without shutting it down first so It suddenly stopped and nothing is lighting up at all and I’ve tried to connect it to external power supply or the usb connection but what happens is the power LED lit up once only and dims, and whenever I press the Power button the power LED Light up only once and nothing happens, so Is there anything that I can do about it or the board is fried?

I did basically the same thing to one of my beaglebones.
Yes, it is dead.
You can request a RMA to get it fixed.

I bought it from adafruit do I still have this option to request RMA?

http://beagleboard.org/support/rma