Keychron K15 Pro Bluetooth Mechanical Keyboard User Guide

June 13, 2024
Keychron

K15 Pro Bluetooth Mechanical Keyboard
User Guide

K15 Pro Bluetooth Mechanical Keyboard

Keychron K15 Pro Bluetooth Mechanical Keyboard - feager
6

INTHE BOX:

Keychron K15 Pro Bluetooth Mechanical Keyboard x 1
Type-C Cable x 1
Manual x 1
Quick Start Guide x 1
Extra Key caps Set x 1

QUICK START GUIDE

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.

Keychron K15 Pro Bluetooth Mechanical Keyboard

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. Keychron K15 Pro
Bluetooth Mechanical Keyboard - feager

Connect Bluetooth

Keychron K15 Pro Bluetooth Mechanical Keyboard - Connect
BluetoothConnect Cable

Keychron K15 Pro Bluetooth Mechanical Keyboard - Connect
Cable

The VIA Key Remapping Software

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.

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.

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.

The Backlight

Keychron K15 Pro Bluetooth Mechanical Keyboard -
Backight

Adjust The Backlight Brightness

Keychron K15 Pro Bluetooth Mechanical Keyboard - Backlight
Brightness

Adjust The Backlight Speed

Keychron K15 Pro Bluetooth Mechanical Keyboard - Backiight
Speed

Watch The Building Tutorial On Our Website

If you are building the keyboard for the first time, we highly recommend you watch the building tutorial video on our website first, then start building the keyboard yourself.

Factory Reset

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

  1. Plug in the power cable and switch the keyboard to Cable mode.
  2. Factory reset the keyboard by pressing Fn + J + Z (for 4 seconds).
  3. Download the right firmware and QMK Toolbox from our website.
  4. Switch the keyboard to OFF mode and remove the space bar keycap to find the reset button on the PCB.
  5. Hold the reset key first, then switch the keyboard to Cable mode. Release the reset key, and the keyboard will now enter DFU mode.
  6. Flash the firmware with the QMK Toolbox.
  7. Factory reset the keyboard again by pressing fn + J + Z (for 4 seconds).
  • Step by step guide can be found on our website.

K15 PRO BLUETOOTH MECHANICAL KEYBOARD SPECIFICATIONS
Number of keys: 89
Switch type: Mechanical
Battery: 2000mAh
Charging time: Around 3 hours
Charging port: USB Type-C
Mode: Bluetooth / Wired
Bluetooth operating distance: Within 10 meters (open space)
Name of Bluetooth device: Keychron K15 Pro
Operating environment: -10 to 50°C
Technical specifications can be subjected to change without notice, we apologize for any inconvenience caused.
K15 PRO BLUETOOTH MECHANICAL KEYBOARD OVERVIEW

Keychron K15 Pro Bluetooth Mechanical Keyboard -
OVERVIEW

  1. Bluetooth Indicator
  2. Win/Android Mac/iOS (OS Toggle Switch)
  3. BT OFF Cable (Mode Toggle Switch)
  4. Charging Port

DEFAULT KEY LAYOUT:

LAYER 0: This layer will be activated when your keyboard’s system toggle is switched to Mac. Keychron K15 Pro Bluetooth Mechanical Keyboard -
DEFAULT

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

Keychron K15 Pro Bluetooth Mechanical Keyboard -
keyboard'sLAYER 2: This layer will be activated when your keyboard’s system toggle is switched to Windows.

Keychron K15 Pro Bluetooth Mechanical Keyboard -
OVERVIEW1

LAYER 3: This layer will be activated when your keyboard’s system toggle is switched to Windows and press the Fn/MO(3) key. Keychron K15 Pro Bluetooth
Mechanical Keyboard - OVERVIEW2

KEY DESCRIPTION

Key Description


Ser-| Screen Brightness Decrease
Ser+| Screen Brightness Increase
Bright-| Backlight Decrease
Bright+| Backlight Increase
Prvs| Previous
Play| Play/Pause
Next| Next
Mute| Mute
Vol­| Volume Decrease
Vol+| Volume Increase
RGBToggle| Turn Backlight on/off
RGBMd+| RGB Mode Next
RGBMd­| RGB Mode Previous
Hue+| Hue Increase
Hue-| Hue Decrease
RGB SPI| RGB Speed Increase
RGB SPD| RGB Speed Decrease
MO(1)| Layer 1 will be activated when holding this key
MO(2)| Layer 2 will be activated when holding this key
MO(3)| Layer 3 will be activated when holding this key
MO(A)| Layer 4 will be activated when holding this key
BTH1| Bluetooth Host 1
BTH2| Bluetooth Host 2
BTH3| Bluetooth Host 3

LED STATUS OVERVIEW

LED Location Function Status
Battery indicator Charging Low battery- Blinking Red

Charging – Static Red
Fully charged – Static Green
Bluetooth indicator| Bluetooth| Pairing – Slow Blinking
Paired – Light Off
Switching – Fast Blinking

FUNCTION DESCRIPTION:
CHARGING
Plug the cable into a USB port and plug the other end into the keyboard port. Charging Indicator:
When battery is below 15%, a red battery blinking indicator will be triggered. A red light will stay on while charging; Fully charged in around 3 hours, a green battery indicator will appear.
*The Keychron keyboard is compatible with all USB ports. Please use a SV 1A adapter or USB 3.0 for the best performance. The Keychron K15 Pro can be charged in Bluetooth/OFF/Cable mode.
**This product supports up to SV charging voltage and 1A charging current. We are not responsible for any problems caused by improper charging.

BLUETOOTH / WIRED MODE (MODE TOGGLE SWITCH)
WIRED MODE

  1. Switch the toggle switch to the Cable option (it only works when a USB cable is plugged in).
  2. Connect our cable with your PC and keyboard.
  3. Backlighting will be turned on.
    *Under Wired Mode, keyboard will not enter into Battery Saver Mode.

BLUETOOTH MODE

  1. Switch the toggle switch to the Bluetooth option.
  2. Backlighting will be turned on.
  3. Hold “fn+1 key for 4 seconds to activate Bluetooth pairing (the Bluetooth indicator fast flashes for 3 minutes to detect pairing).
  4. Search for the Bluetooth device “Keychron K15 Pro” 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″/fn”+”2/”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″/ “Fn” +”2″/ “Fn” +”3″ to switch to other device.

RECONNECT:

  1. Switch the keyboard to the Bluetooth option to activate the keyboard.
  2. The Bluetooth indicator flashes for 4 seconds and automatically pairs with the last paired device.
  3. 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.

TURN OFF THE KEYBOARD
Switch the keyboard to the OFF option.
BACKLIGHT SETTING

  • Short press key combination “fn” + “tab” to turn the backlight on/off.
  • Short press key combination “fn” + “Q” I “fn” + “A” to switch between different types of lighting effects.

OS TOGGLE SWITCH

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

  2. 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.

  3. 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.
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.
Bluetooth connection is interrupted even within 10 meters.
Check if the keyboard is resting on a metal surface that can interfere with the Bluetooth 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.
Keychron K15 Pro Bluetooth Mechanical Keyboard - icon1
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(5°F) or above 50°C(131 °F) to preserve the lifespan of the keyboard.

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

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