> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.morningstar.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Keystrokes is not working

Check that your controller is not using the "No Keyboard" firmware. We publish 2 versions of the firmware, one with a USB MIDI and Keyboard interface, and the other with only a USB MIDI interface. The MIDI only firmware is denoted by a `A` suffix in the firmware e.g. `v3.12.6A`. The USB MIDI + Keyboard firmware has no such suffix e.g. `v3.12.6`.