I've downloaded and copied on a microSD the bone-debian-7.6 image found here (http://elinux.org/BeagleBoardDebian#BeagleBone.2FBeagleBone_Black). When I boot on microSD (using boot button), LED starts blinking showing CPU and SD activity. After some seconds everything stops and the four LED start doing a light-chaser (right to left, then left to right), nothing more happens ...
Pressing RESET has no effect (goes back to light chasing). And now when booting without the SDCard , my BBB doesn’t boot anymore from eMMC.
What could happened ?