• Set up your MX Keys S
• Set up your MX Master 3S

Set up MX Keys S 

QUICK SETUP
For quick interactive setup instructions, go to the interactive setup guide.

For more detailed information, continue with the following detailed setup guide.

DETAILED SETUP

1. Make sure the keyboard is turned on.
   The number 1 LED on the keyboard should blink quickly.
   
   NOTE: If the LED is not blinking quickly, perform a long press (three seconds).
2. Choose how you want to connect:
   • Use the included Logi BOLT wireless receiver.
     Plug the receiver into a USB port on your computer.
   • Connect directly via Bluetooth.
     Open the Bluetooth settings on your computer to complete the pairing.
     Click here for more details on how to do this on your computer. If you experience issues with Bluetooth, click here for Bluetooth troubleshooting.
3. Install Logitech Options+ Software.
   Download Logitech Options+ to enable additional features. To download and learn more go to logitech.com/optionsplus.

LEARN MORE ABOUT YOUR PRODUCT

Product Overview

1 - Universal layout
2 - Mac layout
3 - Easy-Switch keys
4 - ON/OFF switch
5 - Battery status LED and ambient light sensor

Pair to a second computer with Easy-Switch

Your keyboard can be paired with up to three different computers using the Easy-Switch button to change the channel.

1. Select the channel you want and press and hold the Easy-Switch button for three seconds. This will put the keyboard in discoverable mode so that it can be seen by your computer. The LED will start blinking quickly.
2. Connect your keyboard to your computer using Bluetooth or the USB receiver:
   • Bluetooth: Open the Bluetooth settings on your computer to complete the pairing. You can find more information here.
   • USB receiver: Plug the Logi Bolt receiver into a USB port, open Logitech Options+, select: Add devices > select Logi Bolt receiver, and follow the instructions.
3. Once paired, a short press on the Easy-Switch button will allow you to switch channels.

INSTALL SOFTWARE

Download Logitech Options+ to use all the possibilities this keyboard has to offer. To download and learn more about the possibilities, go to logitech.com/optionsplus.

Logitech Options+ is compatible with Windows and Mac.

Multi-OS keyboard

Your keyboard is compatible with multiple operating systems (OS): Windows 10,11 or later, macOS 11 or later, iOS, Linux, Chrome OS, and Android.

If you are a Windows, Linux, and Android user, the special characters will be on the right side of the key:

If you are a macOS or iOS user, the special characters and keys will be on the left side of the keys:

Battery Status Notification

Your keyboard will let you know when it is running low. From 100% to 11% your LED will be green. From 10% and below, the LED will be red. You can continue typing for more than 500 hours without backlighting when the battery is low.

Plug the USB-C cable at the top right corner of your keyboard. You can continue typing while it is charging.

Smart backlighting

Your keyboard has an embedded ambient light sensor that reads and adapts the level of backlighting accordingly.

For dark-colored keyboards:

 *Backlight is turned OFF.

For pale gray keyboards:

 *Backlight is turned OFF.

 There are seven backlight levels.

You can change the backlight levels at any time, with two exceptions: the backlight cannot be turned ON when the room brightness is high, or the keyboard battery is low.

Backlight customization using Logi Options+

You can customize the backlighting in your MX Keys S using Options+:

Use the Backlighting Duration slider to adjust it to your preferred duration:

Use the Automatic Brightness slider to change to manual mode and adjust to your preferred level of brightness.

You can always go back to the default settings by clicking the reset button.

Software notifications

Install Logitech Options+ software to get the most out of your keyboard.

Click here for more information,

1. Backlight level notifications
   Change the backlight level and to know in real-time what level you have.
   
2. Backlighting disabled
   There are two factors that will disable backlighting:
   
   When your keyboard has only 10% of the battery left when you try to enable backlighting, this message will appear. If you want the backlight back, plug in your keyboard to charge.
   When the environment around you is too bright, your keyboard will automatically disable backlighting to avoid using it when unnecessary. This will also allow you to use it longer with backlight in low-light conditions. You will see this notification when you try to turn backlighting ON.
3. Low battery
   When your keyboard reaches 10% of battery left, backlighting turns OFF and you get a battery notification on the screen.
   
4. F-Keys switch
   Press Fn + Esc to swap between Media keys and F-Keys. We’ve added a notification to let you know you’ve swapped.
   
   NOTE: By default, the keyboard has direct access to Media Keys.

Logitech Flow

You can work on multiple computers with your MX Keys S keyboard. With a Flow-enabled Logitech mouse, such as MX Master 3S, you can work and type on various computers with the same mouse and keyboard using Logitech Flow technology.

You can use the mouse cursor to move from one computer to another. MX Keys S keyboard will follow the mouse and switch computers simultaneously. You can even copy and paste between computers. You must install Logitech Options+ software on both computers and follow these instructions.

You can check which other mice are Flow-enabled here.

Set up MX Master 3S

DETAILED SETUP

1. Make sure the mouse is turned on.
   The number 1 LED under the mouse should be blinking fast.
   NOTE: If the LED is not blinking fast, do a long press of three seconds.
2. Choose how you want to connect:
   • Use the included LOGI BOLT wireless receiver:
     Plug the receiver into a USB port on your computer
   • Connect directly via Bluetooth:
     Open the Bluetooth settings on your computer to complete the pairing.
     Click here for more details on how to do this on your computer. If you experience issues with Bluetooth, click here for Bluetooth troubleshooting.
3. Install Logitech Options+ Software.
   Download the Logitech Options+ version to use all the possibilities this mouse has to offer. To download and learn more about the possibilities, click here. 

PAIR TO A SECOND COMPUTER WITH EASY-SWITCH

Your mouse can be paired with up to three different computers using the easy-switch button to change the channel.

1. A short press on the Easy-Switch button will allow you to switch channels. Select the channel you want and go to the next step.
2. Press and hold the Easy-Switch button for 3 seconds. This will put the mouse in discoverable mode so that it can be seen by your computer. The LED will start blinking fast.
3. Choose between two ways to connect your keyboard to your computer:
   • Bluetooth: Open the Bluetooth settings on your computer to complete the pairing. You can find more details here.
   • USB receiver: Plug the receiver to a USB port, open Logitech Options+, and select: Add devices > Setup Logi Bolt device, and follow the instructions.

LEARN MORE ABOUT YOUR PRODUCT

Product Overview

MagSpeed adaptive scroll-wheel

The speed-adaptive scroll wheel shifts between two scrolling modes automatically. As you scroll faster, it will automatically shift from line-by-line scrolling to free-spinning.

• Line-by-line (ratchet) mode — ideal for precise navigation of items and lists.
• Hyper-fast (free-spin) mode — near-frictionless spinning, letting you fly through long documents and web pages.

Switch modes manually
You can also manually switch between modes by pressing the mode shift button.

By default, mode shift is assigned to the button on top of the mouse.
In the Logitech Options+ Software, you can decide to disable smart-shift if you prefer to stay in a single scrolling mode and always shift manually. You can also adjust the smartshift sensitivity, which will change the speed required to automatically shift into free spinning.

Thumb wheel

Scroll side to side effortlessly with a stroke of your thumb.

Install Logitech Options+ software to extend thumb wheel capabilities and more:

• Adjust thumbwheel scrolling speed, and direction
• Enable app-specific settings for the thumbwheel
  • Zoom in Microsoft Word and PowerPoint
  • Adjust brush size in Adobe Photoshop
  • Navigate your timeline in Adobe Premiere Pro
  • Switch between tabs in the browser
  • Adjust volume
  • Assign custom keystrokes to the wheel rotation (up and down)

Gesture Button
Install Logitech Options+ software to enable gestures.

To use the gesture button:

• Hold down the Gesture button while moving the mouse left, right, up, or down.

You can use gestures for desktop navigation, app management, pan and more. You can assign up to five different actions to the Gesture button. Or map gestures to other MX Master 3S buttons, including the middle button or manual shift button.

Back/Forward buttons
Conveniently located, the back and forward buttons enhance navigation and simplify tasks.

To move back and forward:

• Press the back or forward button to navigate web or document pages, depending on the location of the mouse pointer.

NOTE: On the Mac, enabling the back/forward buttons requires installation of Logitech Options+ software.

Install Logitech Options+ software to unlock new capabilities for the back/forward buttons

In addition to enabling the buttons for use with Macs, Logitech Options+ software lets you map other useful functions to the buttons, including undo/redo, OS navigation, zoom, volume up/down, and more.

Darkfield 8000 DPI sensor
Install Logitech Options+ software to enable the new capabilities of the Darkfield 8000 DPI Sensor

By default, the MX Master 3S has a 1000 DPI configuration
In the Logitech Options+ Software, you can extend the sensor range to up to 8000 DPI.

Enabling this option will allow you to work faster and more precisely, allowing you to adjust the pointer speed to match high resolution monitors.

App-Specific Settings
Your mouse buttons can be assigned to perform different functions for different applications. For instance, you can assign the thumb wheel to do horizontal scrolling in Microsoft Excel and zoom in Microsoft PowerPoint.

When installing Logitech Options+ , you will have the possibility to install predefined app-specific settings that will adapt the mouse button behavior to be optimized in selected applications.

Here are the app specific settings we have created for you:

With these settings, the Gesture button and the wheel mode-shift button are keeping the same functionality across all applications.

Each of these settings can be customized manually, for any application.

Flow
Work on multiple computers with a single MX Master 3S.

With Logitech Flow, you can use the mouse cursor to move from one computer to the next. You can even copy and paste between computers, and if you have a compatible Logitech Keyboard, such as MX Mechanical, the keyboard will follow the mouse and switch computers at the same time.

You will need to install Logitech Options+ software on both computers and follow these instructions.

Battery

RECHARGE MX MASTER 3S

• Connect one end of the provided charging cable to the USB-C port on the mouse and the other end to a USB power source.

A minimum of 3 minutes charging gives you enough power for a full day of use. Depending on how you use the mouse, a full charge can last up to 70 days*.

* Battery life may vary depending on user and operating conditions.

CHECK BATTERY STATUS
Three LED light on the side of the mouse indicate battery status.

Install Logi Options+ software to receive battery status notifications, including low-charge warnings.