I am try to boot my DragonBoard 820c for the first time, following instructions in “Getting Started”. I connected the board to HDMI display, USB mouse and USB keyboard, had make sure the boot switch was set to “0000”, and plugged in the power, but there is no HDMI output. The power indicator LED is on, and User LED 0 is blinking, plus the BT LED is on.
Is there really a default OS onboard? How can I check it? Or how can I check if there is a hardware failure?