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+Here is a list of all firmware available for the ducky-key.
+
+- c_duck_v2.1.hex:
+Allow the device to work as both a HID and standard storage device at the same time. 
+
+- usb.hex:
+FAT Duck.
+
+- duck.hex:
+Original firmware.
+
+- duck_v2.1.hex
+Same as duck.hex
+BOOT allows the Ducky to work from boot: BIOS, EFI, Firmware
+
+- m_duck.hex:
+Multi-payloads
+inject.bin - default; ducky will always run this on insertion into a computer,
+Enable NUMLOCK (inject2.bin) or enable CAPSLOCK (inject3.bin)
+Then push the reset switch on the naked duck, to trigger the 2nd/3rd payload.
+
+- m_duck_v2.hex
+Same as m_duck.hex 
+No longer have to press the GPIO button
+Inject4.bin = Scroll_Lock <- New Trigger Key
+
+- USB_v2.hex | duck_v2.hex:
+Idem as usb.hex and duck.hex but VID and PID control is now easier 
+-> create vidpid.bin on the root of the sdcard
+Use a hexeditor to write the first 2x bytes for the VID, followed by another 2x bytes for the PID
+
+- USB_Spammer_v1.0.hex:
+Firmware which replays about once every 30 seconds, with a semi random number added to the total time