let me see if I understand @Andrew956 ...
Do you have your FCUSB with problems to recognize?
You can do the following:
° lower the switch in bootloader mode, there you have an example
![[Image: 0953d4065f5c1ef9ab603b7d421914a1.png]](https://i.gyazo.com/0953d4065f5c1ef9ab603b7d421914a1.png)
° press the bootloader button with the fcusb obviously connected, no matter if the software is not open.
° open any version of the Flashcatusb software [compatible with the pcb version of fcusb classic]
° click AVR Firmware and Load File
° select fw FCUSB.CLASSIC.x.xx.PCBx.x.hex compatible with your version of Flascatusb classic.
° click Program
° after it is programmed, click on Start Application
Do you have your FCUSB with problems to recognize?
You can do the following:
° lower the switch in bootloader mode, there you have an example
° press the bootloader button with the fcusb obviously connected, no matter if the software is not open.
° open any version of the Flashcatusb software [compatible with the pcb version of fcusb classic]
° click AVR Firmware and Load File
° select fw FCUSB.CLASSIC.x.xx.PCBx.x.hex compatible with your version of Flascatusb classic.
° click Program
° after it is programmed, click on Start Application