iFixit - Answers With Device "Logitech M331"

Logitech M331: My USB only works when under pressure

Tue, 31 Mar 2026 10:05:00 -0700

Ok, so I couldn’t find my mouse (M310) in the options thing. Anyways it is wireless and when I plug the USB thing into the computer it doesn’t work. It only works when I apply pressure, which isn’t practical. Anybody have a solution?

⟐ Commented March 31, 2026 at 10:05 MST

Logitech M331: Screw replacement for M330

Thu, 08 May 2025 08:45:32 -0700

Looking to replace the chassis screw that is underneath the sticker when you take the battery out. I have seen several different types in kits here and not sure which one to look at.

Logitech M331: Scroll wheel doesn't respond properly

Sun, 21 Jul 2024 19:08:56 -0700

Every time I attempt to use my mouse, it tends have a lag when I use the scroll wheel, however the other functions are still in a working condition.

⟐ Edited by author July 21, 2024 at 19:08 MST

Logitech M331: Why does my right click not that responsive

Wed, 04 Jan 2023 05:56:57 -0700

The right mouse button is not responsive unless I put some pressure on it

⟐ Answered January 04, 2023 at 5:56 MST

Logitech M331: Mouse is not responding when being used then starts working then stops

Tue, 26 Jul 2022 21:33:09 -0700

I have this m331 silent mouse now since the start of the year which I did replace with warranty, the one before this one, stopped responding to left clicks. I replaced it and all was well. now since last week it has been doing weird things, the mouse works then when dragging it across the screen or clicking its like it doesn't register it, batteries are new, I have tested other mouse's on my computer and taken my mouse to other computers, its the mouse alright but not sure why.

⟐ Commented July 26, 2022 at 21:33 MST

Logitech M331: How do you open the mouse

Sun, 23 May 2021 14:44:22 -0700

Like the questions says.. My scroll wheel has come loose

⟐ Commented May 23, 2021 at 14:44 MST

Logitech M331: Is it possible to get a replacement rubber grip for the mouse?

Thu, 03 Sep 2020 21:14:27 -0700

My grip is almost all gone now just wondering if there’s a way to get a replacement rubber for the grip around the mouse.

Logitech M331: Scroll wheel not working, presumably due to dropping hard on the floor

Mon, 17 Aug 2020 18:37:14 -0700

The scroll wheel doesn’t respond. There are some rare occasions when the scrolling responds again, albeit poorly (scroll direction is always down regardless of wheel spin direction). So I’m thinking something might be dislodged around the wheel part of the PCB. I was trying to measure any voltage on the base of the wheel sensor or whatever that is, while trying to spin the wheel. But I’m just not sure if I was probing on GND or any useful pads on the PCB. Is there a schematic diagram + PCB layout of M331 somewhere? In any case, I feel like there is just a disconnection somewhere that has to be resoldered or reconnected.

⟐ Edited by author August 17, 2020 at 18:37 MST