— Switch to wired USB mode. Many Chinese keycaps forums note that the TM680's tri-mode features require specific configurations for software detection.
Adjust the delay timings between inputs to ensure seamless execution. tm680 keyboard software
Changing key functions (e.g., remapping the knob button or Fn layer). Macro Recording: Setting complex key sequences. — Switch to wired USB mode
Do not use "Gamakay LK67" software on a standard LTC TM680. It will permanently lock the encoder to volume control only. tm680 keyboard software
The software controls the keyboard's north-facing LEDs, side lighting, and bottom lighting.
Which of the TM680 do you have? (Wired-only or Tri-mode wireless?) What operating system are you using? (Windows or macOS?)