Can't get it my rubber ducky to work with a custom layout

[blabut]

I am desperately trying to get my first payloads to work several months after receiving my Rubber Ducky. Unfortunately, it seems like something's not working on my set-up (french keyboard on a MacBook Pro). Here is what I tried to do:

• Create a fr_mac.json, that I crafted using output from Key Codes tool, as suggested by @dallaswinger on my previous issue regarding file upload on the payload generator. I used us.json file as a template, and tried to narrow the issue by only filling keycodes from uppercase and lowercase letters. For instance, typing "a" on my keyboard gave the following on Key Codes tool:

This led me to add the following entry in my fr_mac.json file:

[...]
"a": "00,00,0c",
[...]

I proceeded the same way for other letters and ended up with the following file content:

{
  "a": "00,00,0c",
  "A": "02,00,0c",
  "b": "00,00,0b",
  "B": "02,00,0b",
  "c": "00,00,08",
  "C": "02,00,08",
  "d": "00,00,02",
  "D": "02,00,02",
  "e": "00,00,0e",
  "E": "02,00,0e",
  "f": "00,00,03",
  "F": "02,00,03",
  "g": "00,00,05",
  "G": "02,00,05",
  "h": "00,00,04",
  "H": "02,00,04",
  "i": "00,00,22",
  "I": "02,00,22",
  "j": "00,00,26",
  "J": "02,00,26",
  "k": "00,00,28",
  "K": "02,00,28",
  "l": "00,00,25",
  "L": "02,00,25",
  "m": "00,00,29",
  "M": "02,00,29",
  "n": "00,00,1f",
  "N": "02,00,1f",
  "o": "00,00,1f",
  "O": "02,00,1f",
  "p": "00,00,23",
  "P": "02,00,23",
  "q": "00,00,00",
  "Q": "02,00,00",
  "r": "00,00,0f",
  "R": "02,00,0f",
  "s": "00,00,01",
  "S": "02,00,01",
  "t": "00,00,11",
  "T": "02,00,11",
  "u": "00,00,20",
  "U": "02,00,20",
  "v": "00,00,09",
  "V": "02,00,09",
  "w": "00,00,06",
  "W": "02,00,06",
  "x": "00,00,07",
  "X": "02,00,07",
  "y": "00,00,10",
  "Y": "02,00,10",
  "z": "00,00,0d",
  "Z": "02,00,0d"
}

• I then uploaded my file as a keyboard layout on https://payloadstudio.hak5.org/community/, which now effectively changes the keyboard layout on the interface (thanks @dallaswinger since this improved since https://github.com/hak5/usbrubberducky-payloads/issues/202), at least outwardly.
• I designed the simplest payload, aiming at just typing a few letters without any special chars, just to see if my mapping was correct:

  STRING abc
  DELAY 500

• Finally, I compiled, downloaded, and moved the payload at the root of my Rubber Ducky.
• When executing it by plugin it on my Mac, with my cursor focused on a random text field (Firefox Search bar for instance), all the Rubber Ducky types is an "e" instead of the "abc" I would expect:

Is there something I'm doing wrong ? :(

Any help would be welcomed, would really enjoy starting using my Rubber Ducky for real..

Thanks a lot !

[blabut]

Hi, would anybody have a clue on this please ? :(

[aryainjas]

try using this updated fr_mac.json file and see if it resolves the issue. { "a": "00,00,0c", "A": "02,00,0c", "b": "00,00,0b", "B": "02,00,0b", "c": "00,00,08", "C": "02,00,08", "d": "00,00,02", "D": "02,00,02", "e": "00,00,0e", "E": "02,00,0e", "f": "00,00,03", "F": "02,00,03", "g": "00,00,05", "G": "02,00,05", "h": "00,00,04", "H": "02,00,04", "i": "00,00,22", "I": "02,00,22", "j": "00,00,26", "J": "02,00,26", "k": "00,00,28", "K": "02,00,28", "l": "00,00,25", "L": "02,00,25", "m": "00,00,29", "M": "02,00,29", "n": "00,00,1f", "N": "02,00,1f", "o": "00,00,23", // Corrected keycode for lowercase "o" "O": "02,00,23", // Corrected keycode for uppercase "O" "p": "00,00,23", "P": "02,00,23", "q": "00,00,00", "Q": "02,00,00", "r": "00,00,0f", "R": "02,00,0f", "s": "00,00,01", "S": "02,00,01", "t": "00,00,11", "T": "02,00,11", "u": "00,00,20", "U": "02,00,20", "v": "00,00,09", "V": "02,00,09", "w": "00,00,06", "W": "02,00,06", "x": "00,00,07", "X": "02,00,07", "y": "00,00,10", "Y": "02,00,10", "z": "00,00,0d", "Z": "02,00,0d" }