Logitech MX Air Instruction Manual

Frequently Asked Questions
+Set MX Master mouse sensitivity and pointer speed with Logitech Options
You can use Logitech Options to set the sensitivity and pointer speed of your MX Master mouse.
Set mouse sensitivity
Set pointer speed
NOTE: If you don’t have Logitech Options, you can get the latest version of the software from
the MX Master Download page.
To set mouse sensitivity:
1. Open the Logitech Options software:
Start > All Programs > Logitech > Logitech Options
2. If you have more than one product displayed in the Logitech Options window, select Wireless
Mouse MX Master.
3. Select one of the buttons by clicking on the blue circle next to the button. The options list for
the button appears.
4. Scroll down to Mouse sensitivity and select it.

5. Under Set mouse sensitivity, adjust the slider under Master.
To switch between Master and Custom settings, simply press the button that you assigned to Mouse
sensitivity. If you don’t want to switch between Master and Custom settings, after you’ve adjusted the
sensitivity, select either a different action for the button, or select None in the options list.
To set the pointer speed:
1. Open the Logitech Options Software:
Start > All Programs > Logitech > Logitech Options
2. If you have more than one product displayed in the Logitech Options window, select Wireless
Mouse MX Master.
3. Click the ‘Point and scroll’ tab in the left hand corner of the software window.
4. Under Pointer speed, adjust the slider to your preferred DPI value. The minimum value is 400
DPI. The speed can be increased in increments of 200, up to a maximum of 1600 DPI.
+Cleaning Logitech keyboards and mice
Before you clean your device:
Unplug it from your computer and make sure it’s turned off.
Remove the batteries.
Keep liquids away from your device, and don’t use solvents or abrasives.

To clean your Touchpad, and other touch-sensitive and gesture-capable devices:
Use lens cleaner to lightly moisten a soft, lint-free cloth and gently wipe down your
device.
To clean your keyboard:
Use compressed air to remove any loose debris and dust between the keys. To clean the
keys, use water to lightly moisten a soft, lint-free cloth and gently wipe down the keys.
To clean your mouse:
Use water to lightly moisten a soft, lint-free cloth and gently wipe down the mouse.
NOTE: In most cases, you can use isopropyl alcohol (rubbing alcohol) and anti-bacterial wipes.
Before using rubbing alcohol or wipes, we suggest you test it first in an inconspicuous area to
make sure it doesn’t cause discoloration or remove the lettering from the keys.
+Backup device settings to the cloud in Logitech Options
INTRODUCTION
HOW IT WORKS
WHAT SETTINGS GET BACKED UP
CURRENT LIMITATIONS
INTRODUCTION
This feature on Logi Options allows you to backup the settings of your Options supported device
automatically to the cloud after creating an account. If you are planning to use your device on a
new computer or wish to go back to your old settings on the same computer, log into your
Options account on that computer and fetch the settings you want from a backup to setup your
device and get going.
HOW IT WORKS
When you are logged into Logitech Options with a verified account, your device settings are
automatically backed up to our cloud by default. You can manage the settings and the backups
from the Backups tab under More settings of your device (as shown in the screenshots below):

Manage settings and backups by clicking on More>Backups.

AUTOMATIC BACKUP OF SETTINGS - If the ‘Automatically create backups of
settings for all devices’ checkbox is enabled, any settings you have or modify for all of
your devices on that computer are backed up to the cloud automatically. The checkbox is
enabled by default. You can disable it if you don’t want the settings for your devices to
be backed up automatically.
‘CREATE A BACKUP NOW’ button - This button allows you to backup your current
device settings yourself, if you need to fetch them later.
‘RESTORE SETTINGS FROM BACKUP’ button - This button lets you view and
restore all the available backups you have for that device that are compatible with that
computer, as shown above.
The settings for a device are backed up for every computer that you have your device connected
to and have Logitech Options that you are logged into. Every time you make some modifications
to your device settings, they get backed up with that computer name. The backups can be
differentiated based on the following:
1. Name of the computer. (Eg. John’s Work Laptop)
2. Make and/or model of the computer. (Eg. Dell Inc., Macbook Pro (13-inch) etc.)
3. The time when the backup was made.
The desired settings can then be selected and restored accordingly.

WHAT SETTINGS GET BACKED UP
Configuration of all the buttons of your mouse
Configuration of all the keys of your keyboard
Point & Scroll settings of your mouse
Any application-specific settings of your device
WHAT SETTINGS ARE NOT BACKED UP
Flow settings
Options app settings

CURRENT LIMITATIONS
1. The device settings aren’t compatible between Windows and Mac operating systems. So,
the settings from Windows operating system cannot be applied to a computer with the
Mac operating system and vice versa.
2. There are some features that are available only on certain versions of Windows operating
system. For example, triggering Cortana through a mouse button press is a feature
available only on Windows 10 and not on Windows 7 and 8 as Cortana is not available
on those operating systems. In such cases, those features cannot be applied on the
unsupported operating systems.
+Keyboard/Mice - Buttons or keys do not work correctly
Likely Cause(s):
Potential hardware issue
Operating system /software settings
USB port issue
Symptom(s):
Single-click results in double-click (mice and pointers)
Repeating or strange characters when typing on the keyboard
Button/key/control gets stuck or responds intermittently
Possible solutions:
1. Clean the button/key with compressed air.
2. Verify the product or receiver is connected directly to the computer and not to a hub, extender,
switch or something similar.
3. Unpair/repair or disconnect/reconnect hardware.
4. Upgrade firmware if available.
5. Windows only —try a different USB port. If it makes a difference, try updating the motherboard
USB chipset driver.
6. Try on a different computer. Windows only —if it works on a different computer, then the issue
might be related to a USB chipset driver.
*Pointing devices only:
If you’re not sure if the problem is a hardware or software issue, try switching the buttons in the
settings (left click becomes right click and right click becomes left click). If the problem moves to
the new button it is a software setting or application issue and hardware troubleshooting
cannot resolve it. If the problem stays with the same button it is a hardware issue.

If a single-click always double-clicks, check the settings (Windows mouse settings and/or in
Logitech SetPoint/Options/G HUB/Control Center/Gaming Software) to verify if the button is set
to Single Click is Double Click.
NOTE: If buttons or keys respond incorrectly in a particular program, verify if the problem is specific to
the software by testing in other programs.
+Wireless device does not work or is not recognized
When your device isn't working, the problem is likely a connection or power issue. This can be
due to several reasons, such as:
Low battery levels
Plugging the receiver into a USB hub or other unsupported device such as a
KVM switch
NOTE: Your receiver must be plugged directly into your computer.
Using your wireless keyboard on metal surfaces
Radio frequency (RF) interference from other sources, such as wireless speakers, cell phone, and
so on
Windows USB port power settings
If your keyboard is not working or frequently loses connection try the following steps:
1. Check the batteries or make sure your device is charged.
2. Make sure the keyboard is On.
3. Keep other electrical wireless devices away from the USB receiver to avoid interferences.
4. Move the keyboard closer to the USB receiver.
5. Unpair/repair or disconnect/reconnect hardware:
oIf you have a Unifying receiver, identified by this logo, see Unpair a mouse or
keyboard from the Unifying receiver for instructions.
oIf your receiver is non-Unifying, it cannot be unpaired. However, if you have a
replacement receiver, you can use the Connection Utility software to perform the
pairing.
6. Try a different USB port. If using a different USB port works, try updating the motherboard USB
chipset driver.
7. Windows only —check USB port power settings.
8. Upgrade the firmware for your device if available.
9. Try the device on a different computer.
+Logitech Options will not install on Mac
Likely Cause(s):
Security and Privacy settings are locked

Partial or corrupted download of Logitech Options installer
Symptom(s):
Logitech Options doesn’t start installing
Install is either paused or hung at some point during the installation
Possible solutions:
When the installation seems to be stuck or not progressing, it could mean that the security settings are
locked. To unlock the Security and Privacy settings, please follow the instructions below:
1. Open System Preferences.
2. Select Security & Privacy.
3. On the bottom left of the window, select Click the lock to make changes.

4. Enter your Username and Password.
5. The Security & Privacy settings are now unlocked and you should be able to install the software.

If you’re still not able to install, and if you have Yosemite or earlier, see the Apple support article
on how to repair your disk permissions.
Visit the Apple support site to learn how to start your Mac in Safe Mode. This may help you to
pinpoint the problem.
+Device disconnects or keeps losing Bluetooth connection
Likely Cause(s):
Low battery levels
Plugging the receiver into a USB hub or other unsupported device such as a
KVM switch
NOTE: Your receiver must be plugged directly into your computer.
Using your wireless device on metal surfaces
Radio frequency (RF) interference from other sources, such as wireless speakers, cell phone, and
so on
Symptom(s):
Bluetooth connection keeps dropping
The device doesn’t connect to Bluetooth
Button/cursor lagging
Possible solutions:

1. Reduce the distance between the device and the Bluetooth receiver. If it’s an internal Bluetooth
card (ex. laptop) then try improving the line of sight of the device to the computer.
2. Check for radio frequency (RF) interference from other sources, such as wireless speakers, cell
phone, and so on.
3. Check if the device works with the USB receiver. If it doesn’t, then most likely the device is
defective.
Windows:
Try updating your Bluetooth chipset driver.
Check for Windows updates.
For a Bluetooth USB dongle, update the drivers for it from the manufacturer’s website.
For an internal Bluetooth chipset, refer to the computer’s motherboard manufacturer drivers.
Mac:
Check for OS updates.
+Scroll wheel stuck or does not respond
Likely Cause(s):
Potential hardware issue
Operating system /software settings
After installing and/or updating Logitech Options on Mac OS 10.14 (Mojave) or higher Mac OS
requires user permission to be set. Please follow these steps.
Symptom(s):
Scroll wheel button moves but it doesn’t scroll on the page
Ratched mode doesn’t work
Free spin doesn’t work
Possible solutions:
NOTE: If you have Mac OS 10.14 (Mojave) or higher and the scroll wheel stopped working since
installing and/or updating Logitech Options update, please set the user permissions following
these steps.
1. Clean the scroll wheel with compressed air.
2. Make sure the wheel itself moves and isn’t physically stuck.
3. Check if the settings in Logitech Options for the scroll wheel are correctly selected. See Fixed
scroll wheel mode setting on MX Master mouse.
4. Disable Smooth Scrolling in Logitech Options.

5. Verify the product or receiver is connected directly to the computer and not to a hub, extender,
switch or something similar.
6. Unpair/repair or disconnect/reconnect hardware.
7. Upgrade firmware if available.
8. Windows only —try a different USB port. If it makes a difference, try updating the motherboard
USB chipset driver.
9. Try on a different computer. Windows only —if it works on a different computer, then the issue
might be related to a USB chipset driver.
+Unable to pair to Unifying receiver
If you’re unable to pair your device to the Unifying receiver, please do the following:
STEP A:
1. Make sure the device is found in Devices and Printers. If the device is not there, follow steps 2
and 3.
2. If connected to a USB HUB, USB Extender or to the PC case, try connecting to a port directly on
the computer motherboard.
3. Try a different USB port; if a USB 3.0 port was used previously, try a USB 2.0 port instead.
STEP B:
Open Unifying Software and see if your device is listed there. If not, follow the steps to connect
the device to a Unifying receiver.
+Update your motherboard’s USB and chipset drivers
Before you update, make sure you know the name of the manufacturer and model number.
Here’s how you can find those details on Windows 7, Windows 8, and Windows 10:
1. Press and hold the Windows key, then press R. In the Run box, type msinfo32, and then click
OK or press Enter.
2. In the System Summary tab, in the right pane:
oYour motherboard’s manufacturer is listed next to System Manufacturer
oYour motherboard’s model number is listed next to System Model
3. If the manufacturer model is not listed under System Information, then refer to your
motherboard manual or look for the physical motherboard model number, which should be
located near the chipset.
After you locate the manufacturer and model number, follow these steps to download and update your
USB and chipset drivers:

1. Go to the support or service section of your motherboard manufacturer’s website.
2. Navigate to the corresponding product page.
3. Locate the download section on the product page.
4. Download the latest chipset and USB drivers for your version of Windows and its bit rating. If
you need help, see the Microsoft article How to determine whether a computer is running a 32-
bit version or 64-bit version of Windows at www.microsoft.com.
5. Install both driver files.
NOTE: Steps 1-3 may vary depending on the manufacturer.
+Logitech Options permission prompts on macOS Mojave
For official macOS Mojave support, please upgrade to latest version of Logitech Options (6.94
or later).
Starting with macOS Mojave (10.14), Apple has a new policy that requires user permission for
our Options software for the following features:
Accessibility access is needed for scrolling, gesture button, back/forward, zoom and several
other features
Notifications feature and keystroke assignments under different applications need access to
System Events
Search feature needs access to Finder
Launching Logitech Control Center (LCC) from Options requires access to System Preferences
The following are the user permissions the software needs for you to get complete functionality for your
Options-supported mouse and/or keyboard.
Accessibility Access
Accessibility access is needed for most of our basic features like scrolling, gesture button functionality,
volume, zoom, and so on. The first time you use any feature that requires accessibility permission, you'll
see a prompt as shown below.

Click Open System Preferences and then turn on the checkbox for Logitech Options Daemon.
In case you clicked Deny, use the following steps to allow access manually:
1. Launch System Preferences.
2. Click on Security & Privacy.
3. Click the Privacy tab.
4. In the left panel, click on Accessibility and check the boxes under Logitech Options Daemon to
provide access (as shown below). If you are unable to interact with the checkboxes, please click
the lock icon on the bottom left corner and then check the boxes.
System Events prompts
If a feature requires access to any specific item such as System Events or Finder, you will see a prompt
(similar to the screenshot below) the first time you use this feature. Please note that this prompt
appears only once, requesting access for a specific item. If you deny access, all the other features that
need access to the same item will not work and another prompt will not be shown.

Click OK to allow access for Logitech Options Daemon so that you can continue to use these features.
In case you clicked Don’t Allow, use the following steps to allow access manually:
1. Launch System Preferences.
2. Click Security & Privacy.
3. Click the Privacy tab.
4. In the left panel, click Automation and then check the boxes under Logitech Options Daemon to
provide access (as shown below). If you are unable to interact with the checkboxes, please click
the lock icon on the bottom left corner and then check the boxes.

NOTE: If a feature still doesn’t work after you grant access, please reboot the system.
+USB receiver does not work or is not recognized
If your device stops responding, confirm that the USB receiver is working properly.
The steps below will help to identify if the issue is related to the USB receiver:
1. Open Device Manager and make sure your product is listed.
2. If the receiver is plugged into a USB hub or extender, try plugging it into a port directly on the
computer
3. Windows only —try a different USB port. If it makes a difference, try updating the motherboard
USB chipset driver.
4. If the receiver is Unifying, identified by this logo, open Unifying Software and check if the
device is found there.
5. If not, follow the steps to connect the device to a Unifying receiver.
6. Try using the receiver on a different computer.
7. If it’s still not working on the second computer, check Device Manager to see if the device is
recognized.
If your product is still not recognized, the fault is most likely related to the USB receiver rather than the
keyboard or mouse.
+Logitech Options black screen, stuck on scanning, or no detection of device
Symptom(s):
No device is found in Logitech Options homepage or the screen is all black
Logitech Options stuck while scanning with a spinning wheel
Possible solutions:
1. Check if your device works correctly within the operating system. For example, if you have a
mouse, does the pointer move on the desktop? For keyboards, can you type with your
keyboard?
oIf you have Windows system, check to see if your device is found in Devices and
Printers. If you can’t see your device, check Device Manager for any errors or
unrecognized devices (normally a yellow exclamation mark).
oIf you have Mac system, click on the Apple symbol –About this Mac –System Report –
on the Hardware tab look for USB. On the right side, you will see the USB device tree.
2. Check if .NET Framework is up to date. See the Microsoft instructions here.
3. Try to install Logitech Options while your computer is in a clean boot state (this is different from
booting into Safe Mode). When you perform a clean boot, Windows starts with a minimal set of

drivers and startup programs. You can then determine whether a background program is
interfering with the program. Please see the Microsoft instructions on performing a clean boot
here.
+Flow network setup check for Mac
If you are having difficulty establishing a connection between two computers for Flow, follow
these steps:
1. Check both systems are connected to the internet:
oOn each computer, open a web browser and check the internet connection by
navigating to a webpage.
2. Check that both computers are connected to the same network:
oOpen the Terminal: For Mac, open your Applications folder, then open the Utilities
folder. Open the Terminal application.
oIn the Terminal, type: Ifconfig
oCheck and note the IP address and Subnet mask. Make sure that both systems are in the
same Subnet.
3. Ping the systems by IP address and make sure that ping works:
oOpen the Terminal and type ping <IP address> [Where the <IP address is the IP address
of the other computer noted in Step 2 above]
4. Check that the Firewall and Ports are correct:
Ports used for Flow:
TCP
59866
UDP
59867,59868
1. Open the Terminal and type the following cmd to show the ports in use: > sudo lsof +c15 | grep
IPv4
2. This is the expected result when Flow is using the default ports:
NOTE: Normally Flow uses the default ports but if those ports are already in use by
another application Flow might use other ports.
3. Check that the Logitech Options Daemon is added automatically when Flow is
enabled:
Go to System Preferences > Security & Privacy

In Security & Privacy go to the Firewall tab. Make sure the Firewall is on, then
click on Firewall Options. (NOTE: You may have to click the lock in the bottom
left corner to make changes which will prompt you to enter the account
password.)
NOTE: On macOS, the firewall default settings automatically allow ports opened by
signed apps through the firewall. As Logi Options is signed it should be added
automatically without prompting the user.
4. This is the expected result: The two "Automatically allow" options are checked
by default. The "Logitech Options Daemon" in the list box is added automatically when
Flow is enabled.
5. If Logitech Options Daemon is not there, try the following:
Uninstall Logitech Options
Reboot your Mac
Install Logitech Options again
6. Disable Antivirus and reinstall:

Try disabling your Antivirus program first, then reinstall Logitech Options.
Once Flow is working, re-enable your Antivirus program.
Compatible Antivirus Programs
Antivirus Program
Flow discovery & Flow
Norton
OK
McAfee
OK
AVG
OK
Kaspersky
OK
Eset
OK
Avast
OK
ZoneAlarm
Not Compatible
+Flow network setup check for Windows
If you are having difficulty establishing a connection between two computers for Flow, follow
these steps:
1. Check both systems are connected to the internet:
oOn each computer, open a web browser and check the internet connection by
navigating to a webpage.
2. Check both computers connected to the same network:
oOpen a CMD prompt/Terminal: Press Win+Rto open Run.
oType cmd and click OK.
oIn the CMD prompt type: ipconfig /all
oCheck and note the IP address and Subnet mask. Make sure that both systems are in the
same Subnet.
3. Ping the systems by IP address and make sure that ping works:
oOpen a CMD prompt and type: ping <IP address> [Where the <IP address is the IP
address of the other computer noted in step 2 above].
4. Check that the Firewall & Ports are correct:
Ports used for Flow:
TCP
59866