After broke skyviper's serial2, how can I connect with mavlink by serial4 or serial5?

it so bad that I broke serial2 when soldering, the I change to connect with serial4 or serial5, but I can not make a mavlink connection with baud,115200,500000,921600 after changing protocol to mavlink,is it possible to do that?

Did you also change the port baud date?

@peterbarker yes,I did

After terrible disaster, found that pic in wiki is wrong,

by the way, feel really good with usb connection now