Keychron K1 Max User manual

K1 Max Wireless Mechanical Keyboard

Keychron K1 Max Wireless Mechanical Keyboard x 1
Type-C Cable x 1
Manual x 1
Quick Start Guide x 1
Extra Keycaps Set x 1
Type-A to Type-C Adapter x 1
Type-A 2.4GHz Receiver x 1
2

QUICK START GUIDE
If you are a Windows user, please find the appropriate keycaps in the box, then follow theinstructions
below to find and replace the followingkeycaps.
Mac / Windows
3
/

Connect 2.4GHz Receiver
1
4
Press fn + 1 (for 4 seconds) and pair with
device named Keychron K1 Max.
Connect Bluetooth
2
G / Cable / BT
G = 2.4GHz
G / Cable / BT
Switch toggle to 2.4GHz mode
Connect the 2.4GHz receiver to
the device USB port.
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.
Type-C
Cable Extension Adapter
For Receiver
2.4GHz
Receiver
/
/
/
fn + 1

Connect Cable
3
5
Please make sure the system toggle on
the top left corner has been switched
to the same system as your computer's
operating system.
G / Cable / BT
Switch To The Right System
4
/
Mac Win

6
The Layers
6
There are four layers of key settings on the
keyboard. The layer 0 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 0 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.
The VIA Key Remapping Software
5
Please visit usevia.app to use the online
VIA software to remap the keys.
If the VIA cannot recognize your keyboard,
please reach our support to get the instruction.
Your keyboard’s best friend
*The online VIA software can only run on the latest version of Chrome, Edge, and Opera browsers yet.
*VIA only works when the keyboard is connected by wire to the computer.

7
Adjust The Backlight Brightness
8
Press fn + W to increase the backlight brightness Press fn + S to decrease the backlight brightness
7The Backlight
Press fn + Q to change the lighting effect Press fn + tab to turn the backlight on/off
fn + Q
/
fn + W
/
fn + S
/
fn + tab
/

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.
Warranty
10
Press fn + T to increase the light effect speed Press fn + G to decrease the light effect speed
Adjust The Backlight Speed
9
8
fn + T
/
fn + G
/

Factory Reset
11
9
1. Download the right firmware and QMK Toolbox from our website.
2. Unplug the power cable and switch the keyboard to Cable mode.
3. Remove the space bar keycap to find the reset button on the PCB.
4. Hold the reset key first, then plug the power cable into the keyboard.
Release the reset key after 2 seconds, and the keyboard will now enter
DFU mode.
5. Flash the firmware with the QMK Toolbox.
6. Factory reset the keyboard by pressing fn + J + Z (for 4 seconds).
Troubleshooting? Don’t know what’s going on with the keyboard?
*Step by step guide can be found on our website.
/

K1 MAX WIRELESS MECHANICAL KEYBOARD SPECIFICATIONS
10
Number of keys: 87
Switch type: Mechanical
Baery: 2000mAh
Charging me: Around 3 hours
Charging port: USB Type-C
Mode: Bluetooth / Wired / 2.4GHz
Bluetooth operang distance: Within 10 meters (open space)
Name of Bluetooth device: Keychron K1 Max
Low Power - Red Light Blinking
Charging - Stac Red
Full charged - Stac Green
Switching - Fast Blinking
Paired - Light Off
Pairing - Slow Blinking
Funcon LED Locaon
Charging Baery Indicator
Bluetooth Bluetooth Indicator
Reconnecng-Fast Blinking
Paired - Light Off
Paring - Slow Blinking
2.4G 2.4G Indicator
Status

K1 MAX WIRELESS MECHANICAL KEYBOARD OVERVIEW
11
Mac
Windows
③ ④ ⑤⑥
① Caps Lock Indicator
② BT / 2.4G Indicator
③ Type-C Port
④ 2.4G / Cable / BT
(Connecon Mode Toggle)
⑤ Win/Android Mac/iOS
(OS Toggle Switch)
⑥ Baery Indicator
/
/

DEFAULT KEY LAYOUT:
LAYER 0: This layer will be activated when your keyboard’s system toggle is switched
to Mac.
12
Left Shift Right Shift
Space
SShotMCtl
LOptLeft Ctrl ROpt RCtlLCmd RCmd
LPad
Scr-
MO(1)
SIRI RGB
Md+
Scr+ Brght+Brght- Prvs Play Next Mute Vol- Vol+

13
LAYER 1: This layer will be activated when your keyboard’s system toggle is switched
to Mac and press the fn/MO(1) key.
F1
BTH1
RGB
Toggle
RGB
Md+ Brght+ Hue+ Sat+ RGB SPI
RGB
Md- Brght- Hue- Sat- RGB SPD
BTH2 BTH3
F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12
Ba NKRO
2.4G
RG BTg

LWi n RWinLAlt RAltLeft Ctrl
Left Shift Right Shift
MO(3)
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 Print RGB
Md+
Space RCtl
Cortan
LAYER 2: This layer will be activated when your keyboard’s system toggle is switched
to Windows.
LWin = Left Windows LAlt = Left Alt RAlt = Right Alt RWin = Right Windows RCtl = Right Ctrl
14

LAYER 3: This layer will be activated when your keyboard’s system toggle is switched
to
Windows and press the fn/MO(3) key .
15
Scr- Scr+ Brght+Brght- Prvs Play Next Mute Vol- Vol+
BTH1
RGB
Toggle
RGB
Md+ Brght+ Hue+ Sat+ RGB SPI
RGB
Md- Brght- Hue- Sat- RGB SPD
BTH2 BTH3
Ba NKRO
2.4G
RG BTg
Task File

KEY DESCRIPTION
Screen Brightness Decrease
Screen Brightness Increase
Backlight Decrease
Backlight Increase
Previous
Play/Pause
Next
Mute
Volume Decrease
Volume Increase
Key Description
Scr-
Scr+
Bright-
Bright+
Prvs
Play
Next
Mute
Vol-
Vol+
RGB Mode Previous
Hue Increase
Hue Decrease
RGB Speed Increase
RGB Speed Decrease
Layer 1 will be activated
when holding this key
Layer 2 will be activated
when holding this key
Key Description
RGBMd-
Hue+
Hue-
RGB SPI
RGB SPD
MO(1)
MO(2)
Layer 3 will be activated
when holding this key
MO(3)
2.4G 2.4GHz Host
Turn Backlight on/off
RGB Toggle
16
RGB Mode NextRGBMd+
Bluetooth Host 1BTH1
Bluetooth Host 2BTH2
Bluetooth Host 3
BTH3

17
1. Switch the toggle switch to the Bluetooth opon.
2. Backlighng will be turned on.
3. Hold “fn+1” key for 4 seconds to acvate Bluetooth pairing (the Bluetooth indicator fast flashes for 3
minutes to detect pairing).
FUNCTION DESCRIPTION:
CHARGING
Plug the cable into a USB port and plug the other end into the keyboard port. Charging Indicator:
A red light will stay on while charging; Fully charged in around 3 hours, a green battery indicator will
appear.
*The K1 Max keyboard is compatible with all USB ports. Please use a 5V 1A adapter or USB 3.0 for
the best performance. The K1 Max can be charged in 2.4GHz/Cable/Bluetooth mode.
**This product supports up to 5V charging voltage and 1A charging current. We are not responsible
for any problems caused by improper charging.
2.4GHZ / CABLE / BLUETOOTH MODE (MODE TOGGLE SWITCH)
2.4GHZ MODE
1. Connect the 2.4GHz receiver to your device's USB Port.
2. Switch the toggle switch to the 2.4GHz opon. The keyboard will automacally connect to your device.
*Press the key combinaon "fn" + "4" to enter the forced pairing mode. During this period, it is
recommended that the keyboard be within 20cm of the receiver.

18
4. Search for the Bluetooth device “Keychron K1 Max” on your device and connect it (the Bluetooth
indicator goes off aer successful pairing).
Note: This keyboard supports pairing up to 3 devices simultaneously via key combinaon “fn” + “1” /
“fn” + “2” / “fn” + “3”.
*The Bluetooth indicator will connue to flash for 3 minutes.
**Slow or failed connecons may exist due to different Bluetooth versions, please make sure all the
sengs are correct.
Short press key combinaon “fn” + “1” / “fn” + “2” / “fn” + “3” to switch to other device.
TURN OFF THE KEYBOARD
Switch the keyboard to the Cable opon and unplug the power cable.
RECONNECT:
1. Switch the keyboard to the Bluetooth opon to acvate the keyboard.
2. The Bluetooth indicator flashes for 3 seconds and automacally pairs with the last paired device.
3. If the Bluetooth indicator is off, press any buon to enter the connecon again.
*The keyboard must have been paired with the device to perform this funcon.
1. Switch the toggle switch to the Cable opon.
2. Connect our cable with your PC and keyboard.
3. Backlighng will be turned on.
*Under Wired Mode, keyboard will not enter into Baery Saver Mode.

19
Short press to switch between different types of lighng effects.
BACKLIGHT SETTING
OS TOGGLE SWITCH
Switch the toggle to Mac/iOS when the keyboard is connected to a Mac or iOS operang system.
1 — MAC/iOS
2 — WINDOWS/ANDROID
3 — INPUT METHOD SWITCH

20
My keyboard isn’t working in Bluetooth mode.
For the computer/smartphone:
Go to your device Bluetooth sengs>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.