Also, the System Reference Manual underwent minor changes that were released on May 20th as version A5.5 Thanks Gerald!
(https://github.com/CircuitCo/BeagleBone-Black/blob/master/BBB_SRM.pdf?raw=true)
hii, I had a problem with BBB. When connected to system or powerup, it is not showing flash memory in system and USER lED’s are not blinking. I am now to BBB and don’t know what to do. can anyone guide me ?