Originally Posted by jtravel
Interesting, I assume this Was the power loss after 2 min issue?
That's what I had thought too but one other aspect was after loss of altitude the copter could not get off the ground the battery was not out of power. You could keep running the rotors for quite some time afterward.
With a new, fully charged battery (and new on the battery PCB) it did the same thing leading to the belief the main board was the issue.