Pixhawk 2 module with broken hardwares inside

I wanted to find out if it is safe to continue flying helicopter/aircraft with Pixhawk 2.1 module mounted upside down. In my case I have two incidents, heli crashed due to lose hardwares inside the pixhawk’s carry board and the second heli was grounded due to lose cube module. Upon my inspection I found the nuts broken off the solder joints on the PWA(see atta

ched picture).

Good day
better you don’t fly if the board is damage

would be nice the factory offers exchange for new one. I am spending my own money and doing them a favor by testing out the product for free. four little screws/nuts could not survive the real test and I think this data is good feedback for improvement or DO NOT MOUNT UPSIDE DOWN for heli application.