Like I said in my post above, I want to enter DFU mode as it is allegedly required to make UnoJoy work.
By following this video: Arduino UnoJoy gamepad (Windows, XBox emulation) - YouTube , I can see that when shorts the two pins his Arduino enters DFU mode as shown in device manager. My Arduino does not enter DFU mode after shorting those pins and it merely disconnects and reconnects itself, so I was wondering why that is and how I could fix that.
Aditionally I have tried to use Atmel's FLIP, but it cannot find a .dll file (pictures of what I mean attached).
I have tried to fix the error as per Solution - Flip error "AtLibUsbDfu.dll not found" when flashing Arduino - YouTube video, but I get the following error message:
