For what it's worth, I at last set up this thing maybe four months later. That shows how I get busy with nothing. Anyway, I was able to charge it without a computer. I just used the wall wart from that worthless qlink tablet. At least I was able to fly it for a little while. Of course one of the rotors got damaged and now it kind of scooches along the floor, not really enough to make a cat nervous. There are two spare rotors for each color, black and gray.. I guess one's supposed to be a and the other b, but I'll be darned if I know which is which. I sure can't put it back on the quadcopter. I should probably either give up on this stuff or find some big chunky model that can't get hurt or is super easy to repair without a flashlight, tweezers, etc.