Keychron K3M-A1-RU Max Wireless Mechanical Keyboard User Manual

If you are a Windows user, please find the appropriate keycaps in the box, then follow the instructions below to find and replace the following keycaps.

Connect 2.4GHz Receiver

Connect the 2.4GHz receiver to the device USB port.

Switch toggle to 2.4GHz mode

Note: For the best wireless experience, we recommend using the extension adapter for receiver and putting the 2.4GHz receiver somewhere on your desk close to your keyboard for a low rate of latency and fewer signal interferences.

Connect Bluetooth

Connect Cable

Switch To The Right System
Please make sure the system toggle on the top left corner has been switched to the same system as your computer’s operating system.

The Backlight

Press fn + Q to change the lighting effect
Press fn + tab to turn the backlight on/off

Adjust The Backlight Brightness

Press fn + W to increase the backlight brightness
Press fn + S to decrease the backlight brightness

Adjust The Backlight Speed

Press fn + T to increase the light effect speed
Press fn + G to decrease the light effect speed

The Keychron Launcher App
Please visit launcher.keychron.com to use the online Launcher web app to remap the keys, create macro commands, or flash the firmware. If the Launcher cannot recognize your keyboard, please reach our support to get the instructions.

‘The online Launcher can only run on the latest version of Chrome, Edge, and Opera browsers.
The Launcher only works when the keyboard is connected by wire to the computer.

The Layers

There are four layers of key settings on the keyboard. The layer O and layer 1 are for the Mac system. The layer 2 and layer 3 are for the Windows system.
If your system toggle is switched to Mac, then the layer O will be activated.
If your system toggle is switched to Windows, then the layer 2 will be activated. Remember that if you are using it in Windows mode, please make changes to the layer 2 instead of the top layer (the layer 0). This is a common mistake people are making.

Factory Reset & Firmware Update

Troubleshooting? Don’t know what’s going on with the keyboard? Factory reset your keyboard

Power on your keyboard.
Press and hold fn + J + Z (for 4 seconds). The keyboard backlight will flash in red quickly for 3 seconds, indicating that the keyboard has been reset.

Flash your keyboard firmware

Visit launcher.keychron.com to open the online Launcher web app.
Ensure the keyboard is in Cable or Wired mode and plug in the power cable.
Find the ‘Firmware Update’ tab on the left side of the Launcher and connect your keyboard with it.

Follow the instructions on the Launcher and complete the firmware update.

*Step-by-step guide, search the keyword “firmware” on keychron.com.

Warranty

The keyboard is highly customizable and easy to be rebuilt. If anything goes wrong with any of the keyboard components of keyboard during the warranty period, we will only replace the defective parts of the keyboard, not the whole keyboard.

K3 MAX WIRELESS MECHANICAL KEYBOARD SPECIFICATIONS

Number of keys: 84
Switch type: Mechanical
Battery: 1550mAh

Charging time: Around 3 hours
Charging port: Type-C
Mode: Bluetooth /Wired/ 2.4GHz

Bluetooth operating distance: Within 10 meters (open space)
Name of Bluetooth device: Keychron K3 Max

LED STATUS OVERVIEW

Function	LED Location	Status
Charging	Battery Indicator	Low Power – Red Light Blinking Charging – Static Red Full charged – Static Green
Bluetooth	Bluetooth Indicator	Switching – Fast Blinking Paired – Light Off Pairing – Slow Blinking
2.4G	2.4G Indicator	Reconnecting-Fast Blinking Paired – Light Off Paring – Slow Blinking

K3 MAX WIRELESS MECHANICAL KEYBOARD OVERVIEW

Bluetooth Indicator

0 2.4G Indicator
Win/Android Mac/iOS (OS Toggle)
2.4G /Cable/ BT(Connection Mode Toggle)

Type-C Port

DEFAULT KEY LAYOUT

LAYER 0: This layer will be activated when your keyboard’s system toggle is switched to Mac.

LAYER 1: This layer will be activated when your keyboard’s system toggle is switched to Mac and press the fn/M0(1) key.

LAYER 2: This layer will be activated when your keyboard’s system toggle is switched to Windows.

LAYER 3: This layer will be activated when your keyboard’s system toggle is switched to Windows and press the fn/M0(3) key.

KEY DESCRIPTION

Key Description		Key Description
Ser-	Screen Brightness Decrease	RGB Md-	RGB Mode Previous
Ser+	Screen Brightness Increase	Hue+	Hue Increase
Bright-	Backlight Decrease	Hue-	Hue Decrease
Bright+	Backlight Increase	RGB SPI	RGB Speed Increase
Prvs	Previous	RGBSPD	RGB Speed Decrease
Play	Play/Pause	M0(1)	Layer 1 will be activated when holding this key
Next	Next	M0(2)	Layer 2 will be activated when holding this key
Mute	Mute	M0(3)	Layer 3 will be activated when holding this key
Vol-	Volume Decrease	BTH1	Bluetooth Host 1
Vol+	Volume Increase	BTH2	Bluetooth Host 2
RGB Toggle	Turn Backlight on/off	BTH3	Bluetooth Host 3
RGB Md+	RGB Mode Next	2.4G	2.4GHz Host

Key Description
Batt	Battery Life
NKRO	N-Key Rollover

FUNCTION DESCRIPTION

CHARGING

Plug the cable into a USB port and plug the other end into the keyboard port.

Power Indicator:

A red light will stay on while charging; Fully charged in around 5 hours, a green battery indicator will appear.
The K3 Max keyboard is compatible with all USB ports. Please use a SV 1A adapter or USB 3.0 for the best performance. The K3 Max can be charged in Bluetooth/on/off mode.
This product supports up to SV charging voltage and 1A charging current. We are not responsible for any problems caused by improper charging.

2.4GHZ /CABLE/ BLUETOOTH MODE (MODE TOGGLE)

2.4GHZMODE

Connect the 2.4GHz receiver to your device’s USB Port.

Switch the toggle to the 2.4GHz option. The keyboard will automatically connect to your device.

BLUETOOTH MODE

Switch the toggle to the Bluetooth option.

Backlighting will be turned on.
Hold “fn+1” key for 4 seconds to activate Bluetooth pairing (the Bluetooth indicator fast flashes for 3 minutes to detect pairing).
Search for the Bluetooth device “Keychron K3 Max” on your device and connect it (the Bluetooth indicator goes off after successful pairing).

Note: This keyboard supports pairing up to 3 devices simultaneously via key combination “fn” + “1” I “fn” + “2” I “fn” + “3”.

The Bluetooth indicator will continue to flash for 3 minutes.
Slow or failed connections may exist due to different Bluetooth versions, please make sure all the settings are correct.

SWITCH BLUETOOTH DEVICES
Short press key combination “fn” + “1” I “fn” + “2” I “fn” + “3” to switch to other device.

RECONNECT:

Switch the keyboard to the Bluetooth option to activate the keyboard.

The Bluetooth indicator flashes for 3 seconds and automatically pairs with the last paired device.
If the Bluetooth indicator is off, press any button to enter the connection again.

* The keyboard must have been paired with the device to perform this function.

WIRED MODE

Switch the toggle to the Cable option (it only works when a USB cable is plugged in}.
Connect our cable with your PC and keyboard.

Backlighting will be turned on.

*Under Wired Mode, keyboard will not enter into Battery Saver Mode.

TURN OFF THE KEYBOARD
Switch the keyboard to the Cable option and unplug the power cable.

BACKLIGHT SETTING

Short press to switch between different types of lighting effects.
When backlighting is on, press button to switch among them.

OS TOGGLE

MAC/iOS
Switch the toggle to Mac/iOS when the keyboard is connected to a Mac or iOS operating system.

WINDOWS/ANDROID
Switch the toggle to Windows/Android when the keyboard is connected to a Windows or Android operating system.
When using the Windows/ Android mode keys are used for “Windows” and “Alt” functions.

INPUT METHOD SWITCH

For iOS:

Input method switch: Ctrl + Space

Caps Lock: Caps (Enable General>Keyboards>Hardware Keyboard>Caps Lock Language Switch)

For Android:

Input method switch: Shift+ Space

NOTE: Functions of certain multimedia key may be disabled due to compatibility, versions, brands and drivers of Windows/ Android OS. We also recommend not to switch OS frequently as it may impact keyboard operations.

TROUBLESHOOTING

If unable to pair keyboard to device, confirm that the device you’re trying to pair with is Bluetooth-capable. If so, restart the device and try pairing it with the keyboard again.

Note: On a Windows computer, a new Bluetooth connection will sometimes require additional software updates-a process that may still be ongoing after a message appears indicating a successful completion. Wait at least 20 minutes after pairing to make sure all updates are completed before restarting the computer.

Confirm that the device is configured to accept Bluetooth connections (Windows) and supports an external keyboard (HID profile).

Go to Bluetooth Devices > Open Settings and select the following:

Allow Bluetooth devices to find this computer

Allow Bluetooth devices to connect to this computer
Alert me when a Bluetooth device wants to connect

My keyboard isn’t working in Bluetooth mode.

For the computer/smartphone:
Go to your device Bluetooth settings>Select the keyboard and remove/delete/unpair it.
Then restart your device.

For the keyboard:
Turn the keyboard off and back on. Then reconnect it to your device.

My keyboard isn’t working in 2.4 GHz mode.
Ensure the toggle is set to 2.4 GHz, remove the receiver from your device, and press “fn” + “4” for 4 seconds to force pair, then reinsert the receiver into the device, keeping the keyboard within 20 cm of the receiver for optimal pairing.

Wireless connection is interrupted even within 10 meters.
Check if the keyboard is resting on a metal surface that can interfere with the wireless signal.

Third-party input tools are not compatible with the keyboard.
Due to compatibility, versions, brands and drivers of Windows/Android OS, functions of third-party input tools may be affected while using the keyboard. Please make sure your operating system and drivers are up to date.

Certain multimedia keys or function keys do not work.
Functions of certain multimedia keys may be disabled due to compatibility, versions, brands, and drivers of devices.

Multimedia keys:

Function keys: F1 / F2/ F3 / F4/ FS/ F6 / F7 / FB/ F9 / F10/ F11 / F12

Safety Precaution:

Keep the product, accessories and packaging parts out of the reach of children to prevent any accidents and choking hazards.
Always keep the product dry to avoid corrosion.

Do not expose the product to extreme temperatures below -10°C (14° F) or above 50°C (122° F) to preserve the lifespan of the keyboard and battery.

Keychron, Inc.
Dover, DE 19901, United States

Find us at:

https://www.keychron.com
Support@keychron.com
@keychron

@keychron
@keychronMK
Designed by Keychron

Made in China

Documents / Resources

Keychron K3M-A1-RU Max Wireless Mechanical Keyboard [pdf] User Manual
K3M-A1-RU Max Wireless Mechanical Keyboard, K3M-A1-RU, Max Wireless Mechanical Keyboard, Wireless Mechanical Keyboard, Mechanical Keyboard, Keyboard

References

User Manual

Keychron K3M-A1-RU Max Wireless Mechanical Keyboard

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