Logitech M331 Disassembly

Written By: garfieldknight
  • Comments: 8
Logitech M331 Disassembly

Difficulty

Easy

Steps

4

Time Required

15 minutes

Introduction

This guide is to help you disassemble Logitech M331/M330 mouse and clean the mouse wheel.

  1. LLITmqCek1fCotJ3

    • Carefully detach the upper case and the lower case of the mouse by holding the lower case and lifting the upper case up and then pulling it backward.

  2. SGZcqGWcweQeIyVe

    • Carefully detach the upper case and the lower case of the mouse by holding the lower case and sliding the upper case forward.

    (Sorry about my english :))

    And there is one little Lock down right. You can unlock it with a flat screwdriver.

    Bane -

  3. Sundw6BnCVT5lAIT

    • Unscrew the screw in the purple circle and unfasten the plastic pins in blue circles to remove the board from the plastic cover.

  4. 2wE2riHKT1pHlTLt
    2wE2riHKT1pHlTLt
    twZGmxQ2xyxINes4

    • To disassemble the upper case of the mouse, detach the plastic pins located in the blue circles. The two pins located in purple circles will be automatically unfastened once the four blue pins are detached.

    • To disassemble the light propagator, detach the small plastic pin at the bottom of the mouse case and light propagator connection.

Conclusion

To reassemble your device, follow these instructions in reverse order.

Author

garfieldknight

Member since: 13/02/19

821 Reputation

7 comments

first time using ifixit

this was just what i needed thanks!

Prentiss Johnson -

Thanks for the guide! I was able to clean the scroll wheel properly and fixed the annoying inaccurate scroll issue.

Gabriel Louie Cubelo -

Exactly what I needed, a clear and direct guide. Thank you so much!

Zıbın Zıbınoğlu -

Finally my mouse-wheel has stopped ghost scrolling, I used to have this problem where when I scrolled down and up it would go the opposite direction, at first I thought it was a bug but turns out on my other wired logitech mouse, it worked normally.

Upon following this instruction manual (A++) I managed to put some WD40 in the mouse wheel scrolling part, from the inside (not the wheel but the thing it’s attached to) and scrolled it a couple of times, now it works normally :)

Thanks to the author!

TAY CHU TSE ANDREW -

Thanks, cleaning up my M331 and put nachi tape on right-mouse-button so it works again (after it deform slightly).

yayanm 1k -

Scroll wheel for my mouse has become sticky , is not smooth while scrolling…. Are there replacement scroll wheels available ?

Don’t you think, given the resource crunch on the planet - companies should offer spare parts, rather than use and throw ?

Agasthya -

My mouse is not working even after disassembling and then reassembling. I tried checking what the problem is, but even though I tried different batteries, the mouse wouldn’t start. Can someone help?

Harshil Dari -