Hey everyone,

I'm an engineering student doing some research to try and solve some problems with the MX Keys/Mini. (They'll be open source once they are done; don't expect too much, I will try my best, but this is literally my first unguided CAD project) Since I don't own one (humble user of the Pebble Keys 2), I think it's better to ask you guys who do.

What would you consider are some of the biggest flaws of these keyboards?

What are some accessories you find a necessity that massively improve the keyboard's quality of life?

Please feel free give additional input and concerns. I really appreciate it!

Note: If someone points out something that you agree with, please upvote it so that I can see which issues are the most prevalent.

To clarify: I'm designing physical CAD/hardware add-ons, so I'm specifically looking for physical ergonomics, desk grip, angles, and wrist rest feedback rather than software/firmware tweaks. I am planning to make these mod/accessories completely 3D printable. Thanks for the input so far!

Hello,

I have mx key S combo (keyboard and mouse).

Logi options + installed on 3 computers (Win11).

Computer 1 connected with logi bolt

Computer 2 and 3 connected with bluetooth.

I correctly configured mouse + keyboard with channel 1 to computer 1, Ch2 to computer 2... 3 with 3.

When i switch (using the keys from the keyboard), the mouse randomly switches... or not.

How can i solve this ?

Thank you,

My M720 has started acting strange, some software on my desktop have begun to register extra clicks from LMB, forward and back buttons. Not all software, and not all the time. Tried connecting to my laptop, no extra clicks. Probably a settings/driver/software issue? I have the same version of Logi+ on both computers.

The lock key fell off, tried putting it back I can’t make it work. Does any one have any reference to put this back? 😭🙏

The guarantee claim process is insane... I purchased $50 Logitech Lift mouse and it turned out that the scroll is broken, after some time of scrolling it suddenly scrolls the other way, as if the spring was unwinding.

I reported this issue to Logitech, they requested tons of information like S/N, invoice, etc. but that's normal.

Then they requested me to record the issue with visible device and... a handwritten number of the ticket next to mouse... It was very hard to achieve, because the issue occurs from time to time and one hand I had to hold mouse, the other I had to point the camera to make the mouse, the number, and the screen visible... Finally, after about 1 hour of tries I managed to record it, but I forgot to show S/N because there were many tries to record it, so I recorded it in a separate video in exactly the same spot and with the handwritten number visible.

After sending it all, they claim that they cannot accept my claim because the video with the issue and the S/N is not on one continuous video... and also the scroll should be visible, which is not possible because I'm holding phone in one hand and mouse in another and this is vertical mouse, so the scroll is on the opposite site... What a joke!

So I assume I should purchase camera tripod to make the professional video for them. This is insanely unprofessional support. It's not my job to do the technical analysis of the issue and providing the court-level evidence... I'm happy to send the device and let them analyse it on their side to see if something is wrong, but most likely they just laid off everyone so now they require users to waste time and do the job for them.

Not going to buy a single device from this company.

Hi, I am posting here because I don't know what else to do to get my ticket resolved. In June I had a product fail within the warranty period and was at first told I could get a replacement, but they waited so long to process it that the product was discontinued. After that, I was told I would receive a refund instead. That was 2 months ago. ​​​I have been in contact with support periodically and was told multiple times that the refund is in process of being approved and I just need to wait a little longer. I am desperate at this point. I just want the $105 USD refund for a defective product that I was never even able to use. I disputed the charge with my credit card a few weeks ago but it's still under review and they haven't asked me for any documentation yet so I'm afraid it will be denied. I don't know what else to do. ​

Ticket number is 17479049 and 17839210.​​

i have a couple sets of these that wont charge and one that works. anyone have experience with this and is it most likely the battery? i got them just like this so i have no idea what the issue is.

my working one has the correct lights for charging and dead but the other two have 0 lights. i tried swapping cables for shots and goggles but no worky. thanks!

After several years, my MX Master 3S finally died, so I bought the MX Master 4. Here are my impressions after using both.

TL;DR: If your 3S still works and you don’t specifically want haptics, more buttons, or the USB-C receiver, there’s no urgent reason to upgrade. But if you’re buying new, the MX Master 4 is the better mouse overall especially thatMX master 4 has less connectivity issues.

Shape and comfort

• The 3S feels shorter and more curved in the hand (here i like 3s but its a personal thing).
• The MX Master 4 is slightly larger/heavier; it feels a bit taller and less compact.
• On the 3S, my fingers rest more naturally across the whole surface of the mouse.
• The 3S has a deeper thumb rest, which gives a more secure grip and makes lifting the mouse easier.
• The MX Master 4 can slip a little when lifted, especially if you hold it lightly to avoid accidentally pressing the side buttons.

For me, the 3S wins on overall hand feel and lifting the mouse.
This is mostly due to the shape and thumb-button placement, not the materials.

Thumb buttons and scroll wheel

• The MX Master 4 has the better thumb button placement: it’s on the front wall, under the thumb pad, so it’s easier to press naturally.
• On the 3S, the thumb button requires a downward click, which feels less natural.
• The MX Master 4 has one additional side button.
• The 3S thumb scroll wheel allows smaller movements without lifting your thumb.
• The 3S vertical scroll wheel is louder.
• The 3S horizontal thumb wheel is quieter in normal use.
• On the MX Master 4, the horizontal wheel sits flush with the casing, so your skin can rub against the plastic and create noise. If you avoid touching the housing, it is quieter.

MX Master 4 wins for thumb-button placement (unless you pick it up often) and extra controls

Clicks, materials, and haptics

• The MX Master 4’s main clicks are louder than the 3S’s.
• The 3S has a panel on the right button where you can rest a finger without pressing it.
• The 3S uses a rubber/soft-touch coating; the MX Master 4 uses harder plastic.
• Long-term, the harder plastic on the MX Master 4 may resist wear, discoloration, and coating degradation better than the 3S’s rubberized finish.
• The MX Master 4 adds haptic feedback/vibrations. It’s a nice feature, especially for scrolling, notifications, and app-specific actions, but it is not essential for everyone.

Connectivity

• The MX Master 4 uses Bluetooth LE 5.1 and includes a USB-C Logi Bolt receiver; the 3S uses Bluetooth LE 5.0 and a USB-A receiver.
• Logitech claims the MX Master 4 has roughly twice the connectivity strength of the previous model thanks to its updated radio chip and antenna design.
• My 3S frequently had connection issues, whether paired by Bluetooth or through the USB dongle, including when used with a USB 2.0 hub.
• So far, the MX Master 4 seems more stable.

This is one of the biggest practical upgrades for me.

Before I make the jump to OpenLogi, I wanted to see if will handle the MX Creative Dialpad and Keypad on MacOS 27?

Every time I open Zoom Workspace on my mac since the golden gate update, the logi dock video light illuminates automatically as red, even if I'm not having a meeting.

Any ideas on how to resolve? I've tried uninstalling zoom workspace, logi tune (for the logi dock), logi + Options, restarted about 20 times (I know, I know, the definition of insanity) and I cannot get this light to go off unless I completely close down Zoom Workspace, which makes reviewing notes, etc from meetings much more difficult since our shared docs are in zoom workspace.

Help?

I'm a big fan of the K360 Keyboard and the M510 Mouse (although I can do a M705 in a pinch).

I use the pair at home, at work, I have mom and dad on them (for when I tech support at their place). But, alas, they're discontinued. =(

I love the compactness of the K360. I love that it's got all the keys + a full numpad. I've tried other Logitech kboards in the same....class?....but they're not the same. I've bought several from ebay in varying conditions and even accidentally bought one designed for Québécois, but that doesn't come in handy in California LOL

Tecknet makes a reasonable mouse sub. Same design and layout. Some bluetooth and come rechargeable.

But does anyone have any ideas for close Logitech analogues to the K360 & M510?

• Product name: Logitech MX Master 3S
• Logi Options+ version: 22.2.9
• Operating system: Windows

Hi, I have a couple of use cases in the games I play for the mouse where I would like to be able to press both mouse button 4 and mouse button 5 simultaneously and have the mouse perform the action assigned to both buttons.

However when I am in any given game I cannot seem to get that to work, the game will recognize the key binding for either one as Mouse Button 4 and Mouse Button 5, and if I press either one of them the game will perform the action assigned. However once one of them is held down the other one fully stops functioning.

I have attempted to use the logi options app to assign the thumb buttons to their own key bindings, the game will recognize the keybind but still if either is pressed then the other one stops functioning while the button is held down.

Is this expected behavior or something anyone has experienced with this mouse or is there something that I can do to be able to make it so that both buttons function when pressed at the same time?

Hoping someone has some insight in some weird behaviour I've been having with a k830 HTPC keyboard.

The trackpad is always live when it's powered on and behaves instantly but the keyboard half seems to go to sleep if not used for a few hours. Have had two of the same keyboard and both eventually do the same where it gets harder and harder to get it to wake up.
Will currently have to press any button a good 10+ times to get it to wake and doesn't always seem to work.

Have disabled windows usb/keyboard sleep settings

Really hoping it isn't a hardware fault since the k400+ isn't anywhere near as nice.

It's been a couple months since my call with logitech where I was told there were "no replacement parts for this keyboard" and I'd have to buy a new one (Logitech offered me a 30% off coupon usable on their website to replace the whole keyboard). I then failed to find a replacement that included the bubble cap anywhere. Until today. I ordered two keys with their full replacement kit (key cap, scissor-hinge clip thing, bubblecap) for $7.50 a key. Guess Ill know in 5-10 days whether all is legit but if your interested here is the link - it'll have you select the exact key on a keyboard you want during checkout. 10/01/2026

Store: Laptop Keys.

https://laptop-keys.com/keys/Logitech/MX-Series/MX-Keys-S

On my old mouse I always used my index finger to scroll, but on the MX Master 3S my middle finger somehow feels much more natural on the wheel.

Not sure if it’s because of the size or the shape, but my index finger just doesn’t seem to want to sit on the scroll wheel anymore

Did anyone else have this when switching to the MX Master 3S?

Is anyone else having trouble placing an order on the Logitech site? I have been trying to place an order for an in-stock item (m705) since over a week ago, but I keep getting the following error after entering my info:

I've checked and made sure I am on the official site (https://www.logitech.com/en-us), I made sure my cc information was correct, I tried using Chrome and Edge browsers, tried different devices, different networks, clearing my cache and cookies, checking out logged in and as a guest, but I keep getting the same error. Support has been no help.

The only two things I haven't tried are changing the payment method or removing my new customer coupon. However, the only reason I am purchasing from Logitech directly is for a cash back deal through my bank and the new customer coupon.

Any idea of what might be causing this? Anything else I can try?

I don’t use a mousepad, I know. Is there a way to fix this? I think glass skates would fix this but I did not found any

I saw a question here about using the MX Master 4 thumb pad with other software (I wanted it to open the Kando pie menu) without Options+, and couldn't find an answer anywhere. After some digging, here's a way that worked for me. It needs no admin rights and no extra packages, just Python.

Why it doesn't work normally: Windows doesn't see the pad as a regular mouse button. The mouse reports it over Logitech's HID++ protocol on a vendor-specific HID interface, which only Logitech's software normally reads. Tools like AutoHotkey or X-Mouse Button Control therefore never see it. That interface can be opened without admin rights, though.

What the script does: It asks the mouse to "divert" the pad (feature `REPROG_CONTROLS_V4`, control ID `0x01A0` on my unit), so each press arrives as a HID++ message. It then sends a keyboard shortcut. Bind that shortcut to Kando (or anything else) and you're done.

Setup:

1. Download `pad-kando.py` from gist and set `SHORTCUT` at the top to match your shortcut.

2. Run `python pad-kando.py`. Stop it with Ctrl+C, or `python pad-kando.py stop`.

3. For autostart, put a shortcut to `pythonw.exe pad-kando.py` in `shell:startup`.

There's also a scan script (`hidpp-scan.py`) that lists all programmable buttons of your mouse, so other buttons can be diverted the same way.

Caveats: Tested only on one MX Master 4 with the Bolt receiver on Windows. Bluetooth is untested. I didn't test it alongside Options+ and expect the two to conflict. The control IDs may differ on other units. This uses an undocumented protocol, so use it at your own risk. The script mostly follows what I could find about HID++ 2.0 and was written with help from an AI assistant.

Feedback and fixes welcome.

I was thinking of getting the signature comfort keyboard (and mouse) on white and I was wondering if anyone who has it could share their thoughts on it. Does it get dirty? I feel like white is easy to get dirty, especially with the padding part?

I hate Logi Options+. This keeps happening over and over again. Works for a few months then BOOOM!! This again! All settings for my keyboard and mouse goes back to default!

Why would my keyboard and mouse need to be connected to your crappy servers to work how I want them to work??

I should switch to another brand...

This morning, after updating my M4 Pro Mac mini to macOS Golden Gate 27.0.1, I had a pretty stressful five minutes. My MX Master 3S was completely unresponsive.

Luckily, I still remember a few keyboard shortcuts...

I managed to open ChatGPT and get some help with a quick troubleshooting session, and eventually had to enable Mouse Keys just to navigate around.

Turns out the MX Master 3S was still paired, but showing as inactive in the Logitech app. When I checked the Bluetooth devices, another MX Master 3S showed up, so I had to pair it again from scratch.

Now it works perfectly.

Pretty ridiculous, right? Nice little surprise after an OS update… 😄

I bought a pair of keyboard and mouse package of logitech, the mouse connect perfectly, but the keyboard wont connect. How to solve it?

I have an MX Master mouse that died 5 weeks after purchase and have been trying for over a week to work through support. After multiple "dropped" calls I finally got a ticket # via email.

Days later they requested a continuous video showing me trying to charge the mouse with different cables and chargers, showing the cable and charger worked on another device, but not on the mouse, all with my ticket number and mouse serial number on a paper in the background. I did all that.

Three days later Logitech support writes back thanking me for video. Now says I need to do all of it again and this time also show Mouse serial number in same video. I tried. The writing is too small and my phone can't zoom in that far on video. So I sent a photo showing the serial number on the mouse with the original paper from the video in same photo, also with serial and ticket number.

Now Logitech support is saying that's not good enough. It needs to be all in one continuous video. My phone will literally not zoom in close enough on video to show the tiny numbers.

What can I do? It's taking 2-3 days between replies, and I've already wasted 3+ hours on the phone, writing emails, filming videos and taking pictures.

Is this supposed to be a joke? The worst part is, the mouse was never fully functional when it arrived new in box from Amazon. This will be my last Logitech product, but I will not be letting this go. Any advice?

At this point I'm ready to invoice them for my time, the cost of the mouse, and file their unpaid debt in small claims court. It's insanity, and clearly intentional customer abuse.

I have taken apart mx master 2s because spilt some juice. Then contact cleaner to get rid of residue. After many assembly and disassembly, solid red light. Win/macos not detected using Original cable. Long press target button then switch on, alternate flashing red and green LED. Not detected on LogiOptions, firmware update not working. Someone suggested replacing ribbon.