I started to test my new BeagleBone two weeks ago. Everything seems working.
But yesterday when I plug in the 5V supply (got from Adafruit: http://www.adafruit.com/products/276
), the power led just flashed once and turned off immediately, and the system did not boot.
I tried the usb power supply many times too. No luck.
I tried to measure SYS_5V with external 5V supply connected. There is no output.
So is this a PMIC failure? What should I do?
Any suggestion is deeply appreciated...