Wireless & Control

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Connection Modes

The Q5 Max supports three wireless/wired connection modes. You switch between them using the keys on the KEEB_CTL layer (hold FN1, tap Right Ctrl, then press the target key -- or lock KEEB_CTL with FN1+5).

Key	Mode	Notes
`BT_HST1`	Bluetooth host 1	Pairs/connects to the first saved Bluetooth device
`BT_HST2`	Bluetooth host 2	Pairs/connects to the second saved Bluetooth device
`BT_HST3`	Bluetooth host 3	Pairs/connects to the third saved Bluetooth device
`P2P4G`	2.4 GHz USB dongle	Switches to the included 2.4 GHz wireless receiver
(plug in cable)	Wired USB-C	Wired mode is selected automatically when a cable is plugged in

Bluetooth Pairing

To pair with a new device on a BT slot:

Make sure the keyboard is not currently connected on that slot (or the existing pairing is out of range).
Press BT_HST1, BT_HST2, or BT_HST3 on the KEEB_CTL layer.
The keyboard will begin advertising. Find it on your device's Bluetooth settings and pair normally.

Forgetting a Pairing

Hold the BT_HST* key for approximately 3 seconds to clear the pairing for that slot.

Battery

Key	Action
`BAT_LVL`	Display current battery percentage using the keyboard's indicator LEDs

Pressing BAT_LVL (on the KEEB_CTL layer, mapped to the B key position) triggers a brief LED animation that shows approximate battery level.

The keyboard also has a low battery warning: when the battery drops below a threshold, a dedicated indicator LED pulses to alert you.

KEEB_CTL Layer -- Full Reference

The KEEB_CTL layer is the keyboard's settings panel. Reach it by:

One-shot: While FN1 is held, tap Right Ctrl (OSL(KEEB_CTL)) -- the next keypress comes from KEEB_CTL, then the keyboard returns to normal.
Locked: Press LCK_CTL (FN1+5) to stay on KEEB_CTL.

Wireless Keys (number row)

Key	KEEB_CTL position	Action
`BT_HST1`	`1`	Bluetooth host 1
`BT_HST2`	`2`	Bluetooth host 2
`BT_HST3`	`3`	Bluetooth host 3
`P2P4G`	`4`	2.4 GHz dongle
`LCK_BASE`	`0`	Return to BASE

RGB Keys (Tab row and home row)

See RGB Controls for a full breakdown of the RGB keys.

Utility Keys

Key	Position	Action
`BAT_LVL`	`B`	Show battery level
`NK_TOGG`	`N`	Toggle N-key rollover (NKRO) on/off
`QK_CLEAR_EEPROM`	Numpad `0` position	Reset all EEPROM to factory defaults
`KC_END`	Numpad H/E position	End key
`RGB_TOG`	Encoder press / `Tab`	Toggle RGB lighting on/off

F-row (KEEB_CTL)

Key	Action
F1	`Brid` -- Screen brightness down (macOS)
F2	`Briu` -- Screen brightness up (macOS)
F3	`Task` -- Task manager / Mission Control
F4	`File` -- File manager
F5-F6	RGB brightness down / up
F7-F9	Previous / Play-Pause / Next track
F10	Mute
F11-F12	Volume down / up
Encoder	RGB brightness down / up

EEPROM Reset

[!] Warning: This permanently erases all EEPROM data: VIA keymaps, RGB settings, wireless pairings (some may survive -- depends on Keychron's implementation), and keyboard configuration. Use only as a last resort.

QK_CLEAR_EEPROM is located at the numpad 0 position on KEEB_CTL. After pressing it, the keyboard will restart with factory-default settings. You will need to re-pair Bluetooth devices and reconfigure your layout in VIA/Launcher.

DIP Switches

Both DIP switches are located on the back of the keyboard, next to the USB-C connector. When viewing them from the back, the switches read left-to-right as described below. Note that "left from the back" is the right side in normal keyboard orientation.

  Back of keyboard -- USB-C connector side

  +--------------------------------------+
  |                                 ...  |  < USB-C
  |          [SW2]  [SW1]                |
  +--------------------------------------+

  (viewed from the back)
  SW1 = rightmost from back = left side of keyboard in normal use
  SW2 = next to SW1         = slightly right of SW1 from the back

SW1 -- Wireless Mode Switch (rightmost from back)

Selects the active connection mode. This is a three-position switch.

Position (left>right, viewed from back)	Mode	Notes
Left	2.4 GHz	Connects via the USB wireless dongle
Centre	Wired	USB-C cable connection
Right	Bluetooth	Connects to one of the three saved BT hosts

When set to Bluetooth, use the BT_HST1/BT_HST2/BT_HST3 keys on the KEEB_CTL layer to choose which paired device to connect to.

SW2 -- Win/Mac Backlight Switch (next to SW1)

Selects the RGB backlight preset. This is a two-position switch.

Position (left>right, viewed from back)	Mode	Effect
Left	Win	All LEDs overridden to solid white
Right	Mac	Normal RGB effect as configured in Launcher

The Win/Mac switch does not change the OS key layout or key behaviour -- it is purely a backlight visual preset. See LED Indicators -- Win/Mac DIP Switch for full details on how the white overlay works.