Even the best hardware can sometimes encounter issues. Here are quick fixes for the most common problems:
Bluetooth 5.0, 2.4GHz Wireless (via USB dongle), and USB-C Wired.
If you are experiencing issues, these are the most common solutions to keep your keyboard running efficiently. A. Keyboard Not Responding rk908 bluetooth keyboard manual hot
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Open the Bluetooth settings on your host device (PC/Mac/Mobile) and scan for new devices. Even the best hardware can sometimes encounter issues
| Key Combination | Function | | :--- | :--- | | Fn + 1 - 7 | Cycle through seven pre-set backlighting modes | | Fn + ScLk | Loop through all available lighting effects | | Fn + ↑ / ↓ | Increase or decrease the overall backlight brightness | | Fn + ← / → | Decrease or increase the speed of animated backlight effects | | Fn + 8 / 9 / 0 | : Long press for 3 seconds to enter custom mode, select keys to light up, and press again to save |
Assuming your keyboard isn't dangerously hot, here is the manual for setting up your Bluetooth connection. The RK908 supports up to 3 simultaneous Bluetooth devices. | Key Combination | Function | | :---
The RK908 supports three connection modes: wired (USB-C), Bluetooth, and 2.4GHz wireless. The manual emphasizes that the keyboard remembers the last used mode. To switch modes, users press for Bluetooth channels 1–3, Fn + R for 2.4GHz mode (if the dongle is inserted), or Fn + T for wired mode. This flexibility allows seamless switching between a desktop PC, a laptop, and a tablet.
The "RK908" name has come to represent both the freedom of wireless multi-device control and the raw power of competitive gaming.