Royal Kludge R75Pro Mechanical Keyboard

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Fn blinks when the voltage is low.

Battery check

In Bluetooth or 2.4 Ghz mode, you can press and hold Fn + Enter to check the battery level (numeric keys light up to indicate percentage; e.g. 2 = 20%, 9 = 90%)


Development/Firmware Upgrade mode

This only works when you're connected using a USB cable.

There are two ways to enter into this mode:

Fn + Right Shift + Esc or press and hold the switch located under the Spacebar.

VIA drivers are https://usevia.app/


Secondary function keys

Fn + A Switch to Windows mode

Fn + S Switch to macOS mode

Fn + Del Scroll Lock

Fn + Home Print Screen

Fn + PgUp Pause

Fn + PgDn End

Fn + ] Ins


Backlight control

Note: The lights are in their full power when connected via USB

  • Fn + Up Arrow Increase Backlight Brightness
  • Fn + Down Arrow Decrease Backlight Brightness
  • Fn + \ Switch Backlight Mode (including turning it off)
  • Fn + Win Windows lock
  • Fn + Left Arrow Decrease backlight speed
  • Fn + Right Arrow Increase backlight speed
  • Fn + , Switch Backlight Monochrome
  • Fn + B Switch between six-key rollover and full-key rollover
  • Fn + Spacebar Press and hold for three seconds to restore factory settings

    • Bluetooth Connectivity

    Fn + Q/W/E change Bluetooth channel

    Fn + Q/W/E enter Bluetooth pairing mode


    2.4 Ghz Connectivity

    Fn + P change 2.4 Ghz channel


    Custom Backlight Set

    Note: Fn + 2 ~ 3 Fixed lighting effect, not recording

    Step 1: Fn + 1 customize backlight

    Step 2: Fn + Backspace enter backlit recording mode

    Step 3: Press the keys which you want to record the backlight, and repeat this step

    Step 4: Fn + Backspace save and exit backlit recording mode


    Multimedia Keys for Windows

    Note: Fn + A switch to Windows mode first

    • Fn + F1 Computer
    • Fn + F2 Browser
    • Fn + F3 Mailbox
    • Fn + F4 Calculator
    • Fn + F5 Player
    • Fn + F6 Stop
    • Fn + F7 Last Song
    • Fn + F8 Play / Pause
    • Fn + F9 Next Song
    • Fn + F10 Mute
    • Fn + F11 Decrease volume
    • Fn + F12 Increase volume


    Multimedia Keys for Mac

    Note: Fn + S switch to Mac mode first

    • Fn + F1 Decrease screen brightness
    • Fn + F2 Increase screen brightness
    • Fn + F5 Decrease keyboard backlight brightness
    • Fn + F6 Increase keyboard backlight brightness
    • Fn + F7 Last Song
    • Fn + F8 Play / Pause
    • Fn + F9 Next Song
    • Fn + F10 Mute
    • Fn + F11 Decrease volume
    • Fn + F12 Increase volume
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