9 key does not work

[daphnerby (Daphne Nix)]

Hello! My 9 key does not work in Linux or Windows.
Could you please give me some troubleshooting steps I should follow?
I unscrewed the top and bottom plates and did not see anything visibly wrong with it.

[algernon (Gergely Nagy)]

Please email help@keyboard.io.

You can also check the built-in test mode to see what it sees about the 9 key. See this thread for more info about the test mode:

Kaleidoscope-Model01-TestMode documentation?

It’s mostly useful to detect hardware issues, but here’s how to use it: press PROG, LED and left Fn together at the same time to enter the test mode. First, it will test the LEDs by going through a few colors (waiting for any keypress in between): red, green, blue, then white. It will follow that with 1000 cycles of rainbow. Then it enters the matrix test mode. In this mode, when you press a key, it will aggressively check for chatter (by reducing debounce time significantly). By default, all …

[daphnerby (Daphne Nix)]

Thank you very much, algernon!
I did the test, and the 9 key remained red.
I am emailing help@keyboard.io right now.

[daphnerby (Daphne Nix)]

Edit: Since the keyboard comes with an any key, I configured it to output a 9 key.
Also, I held the keyboard upside-down and pressed the key 20 times. It totally worked!