First, please understand I am not very familiar with the CGo3+. However, it is likely the two boards in your pictures are the same. On the earlier versions of the camera. (CGo2 and CGo3), the boards could not be simply replaced. The new boards had to be "mated" to work with the exact sensors of each individual camera. A new board, installed without proper calibration, would either not initialize, or (more often) would initialize, then move in erratic patterns. You can't configure the new board yourself. The camera has to be sent to Yuneec, or one of the Yuneec Authorized service centers.
It may be that the more expensive site includes the calibration service in the cost of the board, but I have no way to tell that.