Logitech MX Mechanical Keyboard & MX Master 3S Mouse User Manual

1. Setup Guide

This section provides instructions for the initial setup of your Logitech MX Mechanical Keyboard and MX Master 3S Mouse.

1.1 Unboxing and Components

Carefully remove all components from the packaging. You should find the MX Mechanical Keyboard, the MX Master 3S Mouse, and a Logi Bolt USB Receiver.

Image: The Logitech MX Mechanical Keyboard and MX Master 3S Mouse, as they appear in the bundle.

1.2 Connecting Your Devices

Your devices can be connected via the included Logi Bolt USB Receiver or Bluetooth Low Energy.

1.2.1 Using the Logi Bolt USB Receiver

1. Plug the Logi Bolt USB Receiver into an available USB port on your computer.
2. Ensure both the keyboard and mouse are powered on. The devices should automatically connect to the receiver.

1.2.2 Using Bluetooth Low Energy

1. On the keyboard, press and hold one of the Easy-Switch keys (1, 2, or 3) until the LED blinks rapidly.
2. On the mouse, press the Easy-Switch button on the bottom until the LED blinks rapidly.
3. On your computer, navigate to Bluetooth settings and select the Logitech MX Mechanical Keyboard or MX Master 3S Mouse from the list of available devices to pair.
4. Repeat for the other device.

For macOS users, if FileVault is enabled, you may need to use the Logi Bolt USB Receiver for password entry at start-up or reboot when connected via Bluetooth.

1.3 Installing Logi Options+ Software

To unlock the full customization and advanced features of your devices, download and install the Logi Options+ software. This software is available for Windows and macOS.

• Visit the official Logitech website: logitech.com/optionsplus
• Download and run the installer for your operating system.
• Follow the on-screen prompts to complete the installation.

2. Operating Instructions

This section details the key features and functionalities of your Logitech MX Mechanical Keyboard and MX Master 3S Mouse.

2.1 MX Mechanical Keyboard Features

Image: A detailed diagram highlighting the key features of the MX Mechanical Keyboard.

• Low-profile Mechanical Keys: Experience comfortable and precise typing with low-profile mechanical switches. This bundle includes the Tactile Quiet switch type.
• Customizable Keys: Utilize Logi Options+ to reassign functions to various keys, including Fn-keys, to streamline your workflow.
• Smart Backlighting: The keyboard features intelligent backlighting that illuminates when your hands approach and adjusts brightness automatically based on ambient light conditions.
• Easy-Switch Enabled: Quickly switch between up to three connected devices (via Logi Bolt or Bluetooth) using the dedicated Easy-Switch keys (1, 2, 3).
• USB-C Quick Charging: Recharge the keyboard quickly using the USB-C port.
• Dual Color Keycaps: The keycaps feature a dual-color design for enhanced visibility and aesthetics.
• Low-carbon Aluminum: The keyboard is constructed with low-carbon aluminum for a premium and durable build.

Image: The MX Mechanical Keyboard displaying its smart backlighting feature in a low-light environment.

2.2 MX Master 3S Mouse Features

Image: A detailed diagram highlighting the key features of the MX Master 3S Mouse.

• MagSpeed Wheel: Experience ultra-fast and precise scrolling with the MagSpeed electromagnetic scroll wheel. Scroll 1,000 lines in a second or stop on a pixel.
• Thumbwheel: The dedicated thumbwheel allows for horizontal scrolling, ideal for large spreadsheets or timelines.
• Customizable Buttons: The mouse features 7 customizable buttons (Left/Right-click, Back/Forward, App-Switch, Wheel mode-shift, Middle click, Gesture button) that can be configured using Logi Options+.
• Track-anywhere Sensor: The Darkfield high precision sensor allows the mouse to track on virtually any surface, including glass (minimum 4mm thickness), with up to 8K DPI precision.
• USB-C Charging: Recharge the mouse quickly using the USB-C port.
• Easy-Switch Buttons: Similar to the keyboard, the mouse can connect to and switch between up to three devices.

Image: The MX Master 3S Mouse demonstrating its ability to track precisely on a glass surface.

2.3 Multi-Device and Multi-OS Functionality (Logitech Flow)

The MX Mechanical Keyboard and MX Master 3S Mouse are designed to work seamlessly across multiple devices and operating systems, including Windows, macOS, Linux, Chrome OS, iPadOS, and Android. With Logi Options+ software, you can enable Logitech Flow.

Image: An illustration of Logitech Flow, demonstrating the ability to seamlessly transfer text, images, and files between two different computers with a single keyboard and mouse.

Logitech Flow allows you to control multiple computers with a single MX keyboard and mouse, and even copy-paste text, images, and files between them. This feature requires Logi Options+ to be installed on all computers you wish to use with Flow.

3. Maintenance and Care

Proper care ensures the longevity and optimal performance of your Logitech devices.

3.1 Cleaning Instructions

• Keyboard: Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution. Avoid excessive moisture. Do not spray cleaners directly onto the keyboard.
• Mouse: Wipe the surface with a soft, dry cloth. For the sensor, use a cotton swab lightly dampened with isopropyl alcohol if necessary, ensuring no liquid enters the mouse.
• Avoid abrasive cleaners, solvents, or aerosol sprays.

3.2 Battery Charging

Both the keyboard and mouse feature rechargeable Li-Po batteries. Connect them to a USB-C power source using the provided cables when the battery indicator shows low charge.

• MX Mechanical Keyboard: Rechargeable Li-Po (1500 mAh) battery. Battery life may vary based on user and computing conditions.
• MX Master 3S Mouse: Rechargeable Li-Po (500 mAh) battery. Battery life may vary based on user and computing conditions.

4. Troubleshooting

This section addresses common issues you might encounter with your devices.

4.1 Connectivity Issues

• Device not connecting: Ensure the devices are powered on and fully charged. Try re-pairing them via Bluetooth or re-inserting the Logi Bolt USB Receiver.
• Interference: Wireless range may vary depending on the operating environment and computer setup. Try moving the devices closer to the receiver or computer. Avoid placing them near other wireless devices that might cause interference.
• Logi Bolt Receiver not recognized: Try plugging the receiver into a different USB port. Ensure your computer's USB drivers are up to date.

4.2 Backlighting Problems (Keyboard)

• Backlight not turning on: Ensure the keyboard battery has sufficient charge. The smart backlighting feature may not activate in brightly lit environments. Check settings in Logi Options+.
• Backlight not adjusting: Verify that the ambient light sensor is not obstructed. Adjust brightness manually using the dedicated keys or through Logi Options+.

4.3 Mouse Tracking Inaccuracies

• Erratic tracking: Clean the mouse sensor area. Ensure the surface you are using is suitable for optical tracking. While the mouse tracks on glass, ensure the glass is at least 4mm thick.
• DPI adjustment: Adjust the DPI sensitivity in Logi Options+ to suit your preference.

For further assistance, refer to the Logi Options+ software's help section or visit the Logitech support website.

5. Technical Specifications

Detailed specifications for the Logitech MX Mechanical Keyboard and MX Master 3S Mouse.

5.1 MX Mechanical Keyboard Specifications

5.2 MX Master 3S Mouse Specifications

5.3 Logi Bolt Receiver Specifications

6. Warranty and Support

Logitech products are designed for reliability and performance. For detailed warranty information, please refer to the warranty card included with your product or visit the official Logitech website.

6.1 Product Warranty

Your Logitech MX Mechanical Keyboard and MX Master 3S Mouse bundle comes with a limited hardware warranty. This warranty covers defects in materials and workmanship under normal use. Specific terms and duration may vary by region.

6.2 Customer Support

For technical support, troubleshooting, or warranty claims, please contact Logitech Customer Support through the following channels:

• Online Support: Visit the Logitech support website for FAQs, troubleshooting guides, and driver downloads: support.logi.com
• User Manual (PDF): A downloadable PDF version of the user manual is available for your convenience: Download PDF Manual