[Bricked Ducky?]

I found my mistake: https://github.com/emsec/ChameleonMini/issues/88#issuecomment-284179380

I downloaded the twin duck firmware with the following command:

wget https://github.com/hak5darren/USB-Rubber-Ducky/blob/master/Firmware/Images/c_duck_v2.1.hex

But this downloaded the html version and not the RAW hex file.
The correct command would be:

wget https://raw.githubusercontent.com/hak5darren/USB-Rubber-Ducky/master/Firmware/Images/c_duck_v2.1.hex

 

[Bricked Ducky?]

Hi,

my ducky worked fine for one day, then after plugging it out and in again it just stopped working.
It just lights up very shortly with a red led.
I then tried to flash a new firmware.
After that it just lights up with a permanent solid red led when plugged in and I'm not able to flash a firmware again.
Here is the output of my flashing process:

sudo dfu-programmer at32uc3b1256 erase --force
sudo dfu-programmer at32uc3b1256 flash --suppress-bootloader-mem c_duck_v2.1.hex 
sudo dfu-programmer at32uc3b1256 reset
[sudo] password for User: 
Erasing flash...  Success
Checking memory from 0x2000 to 0x3FFFF...  Empty.
Error reading line 1.

Before flashing I removed the micro sd card.
Do you have any suggestions what else I could try?