The ESC is fine, I get the confirmation beeps that the race are working properly, but I don't get those two other beeps for the flight controller. I'm a newbie and this is my first build, I don't know what went wrong. Was working until I decided to add the receiver. An fs-a8s, which didn't power on when connected to the board. Then the board suddenly decided to not work for a while, I resoldered everything up, and plugged it back in, and now I only have a white light and a faint red light. I really don't want to have to buy a replacement. Because the soldering took me way too long. Any ideas?