I too have the same problem. However, I cannot get my board to say, "BOOT ME" no matter how many times I've tried. I've even tried from a Win98 virtual machine, since I read that some people have issues with Windows 10. Checked and re-checked all solder connections. If I close out Terra Term and try to flash, all I get is, "waiting for DM368". Using the Win98 VM, I get, "cannot initialize". I would appreciate any suggestions, however, before anyone says that my board is no good, I should point out that I can fly with perfect video the first flight of any given day. After powering down to switch batteries, black screen. Mine is backwards, I have to wait some time for it to work, and then only once. Also, it cannot be heat related. I've checked it with a infrared thermometer and waited for it to cool to ambient and it still will only work once until I let it sit for a couple of days.