Hello noob to the dragonboard, but I'm getting flustered. I have loaded two different SD cards with the linux image, but so far, I can't get the installer to boot. I have tried setting the boot switches to SD boot, and SD boot-USB host, but I still boot into android. The only LED that ever lights up is #4, which I thought wasn't used. I was atleast hoping to see the SD card light blink a few times, showing activity. Any suggestions? Thanks.