iFixit - Answers With Device "Logitech MX Master 2S"

Logitech MX Master 2S: Sensor no longer picking up movement.

Wed, 11 Feb 2026 06:16:09 -0700

All other functions of the mouse work normally, it just will not pick up movement.

⟐ Commented February 11, 2026 at 6:16 MST

Logitech MX Master 2S: Rubber material under the thumb area

Fri, 30 Jan 2026 15:39:08 -0700

The rubber area under the thumb to ring finger has degraded after extensive use, and there is even a rupture in the rubber material where the thumb can click down. I'd like to replace the rubber material only. Please advise.

⟐ Commented January 30, 2026 at 15:39 MST

Logitech MX Master 2S: Mouse is Connected but stops moving or responding abruptly

Thu, 23 May 2024 03:22:09 -0700

So the strangest issue that apparently has no solution. The mouse always lights up, has full charge and the button selection also works and lights up when Connected. But on RANDOM, it just stops moving the cursor on screen. I check bluetooth settings and it still shows that it's connected (same in LogiOptions+ also). And yet, it just on random abruptly loses connection despite showing that it's connected. I opened it apart and put it back together. Some days it works fine some days this issue just keeps happening every few minutes and I have to keep switching it off and on to get it to work again. Sigh. I've even scoured the forums, reddit and logitech support and some say it could be something to do with Sleep Mode but I have no clue how to fix that. lol. Any help?

⟐ Answer edited May 23, 2024 at 3:22 MST

Logitech MX Master 2S: Side scrollwheel no longer working after disassembly

Mon, 06 Sep 2021 13:30:43 -0700

I took my MX Master 2S apart from cleaning and everything went well.

Sadly a new issue arose when putting it back together.

When i attach the cable for the side scrollwheel/button, the sensor stops working - the mouse no longer moves on the screen.

The mouse works perfectly without this cable attached, but i sadly loose the ability to use the side scrollwheel that way.

Has somebody else experienced this issue aswell?

⟐ Answered September 06, 2021 at 13:30 MST

Logitech MX Master 2S: Right mouse click is not working

Thu, 08 Jun 2023 04:03:12 -0700

Hello,

my right mouse click suddenly stopped working on my MX Master 2s.

I tried following steps without any success:

1) Turned mouse on/off

2) Connected mouse via bluetooth dongle on other computer

3) Switched left/right mouse click via Windows settings

4) Bought a new original mouse click switch (from Omron) and replaced the old switch

-> After all my right mouse click is not working!

-> I now use a wired, old mouse and I have no problem at all with this.

Can you please help me?
Do you think it might be a hardware malfunction on the motherboard?
I mean I even replaced the switch.

Thanks,
Fabian

⟐ Commented June 08, 2023 at 4:03 MST

Logitech MX Master 2S: There is no flashing red light on the underside

Fri, 09 Aug 2024 07:22:47 -0700

A friend has given me 2 of these mice and both have no flashing red light on the underside, is there any simple fix or is this a parts replacement? The battery is charged and there are lights for the 1-2-3 selection. I have no available unit to connect it to, we just want the red light to come back on. (Located at the near center underside).

⟐ Commented August 09, 2024 at 7:22 MST

Logitech MX Master 2S: Mouse Sensor Stopped Detecting Movement – Help Needed

Sat, 22 Nov 2025 08:18:29 -0700

My mouse is working fine in every other way, but the sensor no longer detects movement. Clicking, scrolling, and buttons all function normally.

Has anyone seen this issue before? Any tips for troubleshooting or fixing the sensor would be appreciated.

Logitech MX Master 2S: The spring of the plastic part

Fri, 28 Jun 2024 23:05:00 -0700

Hello, can someone help me =(((

đây là nguồn của bài viết trên iFixit:

https://www.ifixit.com/Guide/Logitech+MX...

I have trouble with Step 13 "Disassembling the scroll mechanism" when I don't know how to reinstall the spring of the plastic part, when I disassembled I didn't pay attention to it but it was attached, please help me.

Logitech MX Master 2S: Scroll wheel rubber is falling apart! Replacement?

Sat, 13 Jan 2024 08:27:45 -0700

Mouse otherwise works great, but the scroll wheel rubber is mush. Seems insane to throw this out, but the cheapest scroll wheel replacement I've found is $35 which is cost prohibitive considering a new mouse is $70. HELP!

Logitech MX Master 2S: Is their a plan to get a scroll wheel replacement available?

Mon, 20 Nov 2023 11:23:22 -0700

One of the most common complaints and "failure" points of this mouse is the rubber like material on the scroll wheel deteriorating. Are their plans to make an official replacement part for this available to extend the life of our mice? Maybe even redesigned like the 3/3s with no rubber?

Logitech MX Master 2S: Sensor not working (already tried gesture button fix)

Thu, 20 Apr 2023 19:40:08 -0700

Logitech MX Master 2s

Hello, looking around I saw that loosening the screws holding in the gesture button board worked for a lot of people but it doesn't seem to work for me. To confirm, I tested while the mouse was partially disassembled, I was able to click the gesture button to see that it was not being held down, but the sensor was still not picking up movement. All other click functions and scroll functions seem to work. Nothing clogging up the sensor window.

I figure it's the sensor chip itself that's malfunctioned. All the solder joints seem intact and I don't see any corrosion. I am able to do some soldering and was wondering if anyone knew where to find a replacement chip? I would also settle for the sensor chip from the MX Master 1 if it's a drop in replacement.

I sprung for this listing because it's the only place I've found the part but I have no idea how reliable this site is. Could anyone point me to a better alternative? The part number is PMW3816DM-TYQU

https://www.yoycart.com/Product/57912232...

⟐ Edited by author April 20, 2023 at 19:40 MST

Logitech MX Master 2S: Left click button not functioning

Wed, 16 Mar 2022 04:37:53 -0700

The left button on my mX 3 is not working.

Please help.

⟐ Commented March 16, 2022 at 4:37 MST