Had tried to built a secure autopilot firmware where i successfully flashed firmware with private key after that when i updated bootloader with corresponding public key i dont know what happened the cubeorange stopped working not showing the comports ,not getting connected.The led showing bootloader program is not at all blinking while connecting via usb. Tried software and hardware approach of flashing it nothing made any change in fate. In hardware flashing i used stm32cubeprogrammer i tried too flash using swdio,swclk data pins in carrier board via stm32 stlink flasher but the port is not detecting it its showing only c as serial parameter. Then i tried using stm32 nucleo board but the target was not getting detected. Then i opened the cube itself then i used the boot pin short with 3.3 v it become high still didnt get into dfu mode as it was not getting detected. Now what should i do to retrieve back my cubeorange.