Based on what you have said. All the button does is change the boot mode. If it boots from the SD fine without the button, then unless you changed the eMMC contents it is most likely booting from eMMC and not the SD card. You need to see where it is booting from by not using the SD card and seeing if it boots. If it does, then that means it is booting from eMMC and then most likely your SD card is not made correctly or is bad.
Gerald On Fri, Aug 8, 2014 at 7:07 AM, daniel <[email protected]> wrote: > i recently got my beaglebone black rev c and tried to boot from the sd > card by holding down the boot button. the power light comes on but thats > it, theres no other activity. the board will boot from the sd card just > fine if i dont hold down the button when it turns on. im using a 5v 3 amp > adapter to power the board and there are no devices plugged into the board. > is this a defective unit? > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
