Stm32 programmer does not recognize usb (dfu)

Tried to reload firmware and messed up my FC I’m using a matek 405 wte wing. cant get stm 32 cube programmer to recognize my FC now. im using Ardupilot Plane. i have tried impulserc driver fixer, but it just searches cant find my FC. i need help. BK

What software were you using the flash firmware? As assuming it was ardupilot/iNav then thr bootloader should still be intact, and hopefully you have only bricked the MCU. Then you just need to short the boot pins/press boot butting to start the mcu in bootloader mode and you should be able to then reflash iNav.

However if your fc does show any signs of life via leds, or gets super hot then it may be fried.