How to upgrade firmware on a phantom 3 pro without a camera or gimbal installed

[randyvanscoy]

I am needing to upgrade my pro firmware but i do not have camera or gimbal installed on it. Are they any way to do this using the usb port in bird?

 

[msinger]

Are they any way to do this using the usb port in bird?

No. Either stick with your current firmware or install the camera/gimbal.