Beagleboard xm fried by multimeter????

I know my sd card is ok because I can see it on my Ubuntu computer. All the files are there and readable. I do know on my Raspberry Pi that the sd card connector is flakey - jiggling it around in the holder makes it finally find it. I don’t think that is my problem on the BB-xm as it is a much more solid holder.

I may have made exactly the same mistake you did and didn’t realize it. They need that 5v pin painted neon red with a big STOP sign on it…

I have now progressed to no main power led showing - but the USB power light is now on. (it was off before). I have a 5v main connector so it sure is a mystery!