Logitech M310 Mouse Wheel Spring Repair

Written By: Karmit Dandona

Comments: 8

Difficulty

Easy

Steps

Time Required

5 minutes

Introduction

Use this guide to learn how to readjust a dislodged spring in the Logitech M310 mouse wheel. A dislodged spring can cause the mouse wheel to spin freely without any resistance, rather than the default ratcheting behavior.

If the mouse wheel spins freely, the sensor inside the mouse cannot detect the wheel accurately. Inaccurate detection of the mouse wheel will cause screens or web pages to move up and down randomly. This repair guide will help you take the mouse apart and push the spring back to its correct position. You are not required to have any repair experience. You should not encounter any damage to both yourself or the mouse if you follow the steps in this repair guide.

Tools

Step 1

Check if the scroll wheel is spinning freely without resistance.
A correctly aligned spring will cause the wheel to ratchet in small increments

Step 2

Use your thumb to press the indentation on the bottom battery cover.
Slide down the battery cover and fully remove the battery cover.
Remove the battery.

Step 3

Remove two Phillips #1 screws.

Step 4

Remove the bottom board plate from the mouse body by pulling it down and away.
Ensure not to apply the force perpendicular to the mouse body. The board will only remove in a downward direction.

Step 5

Use the 2mm flat head to lift up the spring leg.
Use the screwdriver as a lever to pry the spring leg back into the scroll wheel
You may need to use your thumb to pull the scroll wheel to the left a few millimeters, creating enough of a gap on the right side for the spring leg to fit into the mouse wheel cavity.
The spring leg should no longer be visible once aligned inside the mouse wheel cavity.

The spring leg does not go around the vertical plastic post, but between the post and the wheel.

Bob Weenig - 22/02/21

Step 6

Before reassembling the mouse, confirm if the scroll wheel is fixed appropriately.
Gently place the mouse down on the table and scroll the wheel. There should now be a noticeable difference in resistance, and it should no longer freely spin.
If the scroll wheel is still not fixed, you may need to readjust the spring into the cavity again (see Step 5).

Wow thanks! I’m glad I found this and the pics were helpful. Sure I could throw the mouse away, but I’m curious like that…

James McCourt -

Conclusion

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

Author

Karmit Dandona

Member since: 18/02/20

309 Reputation

6 comments

Great tutorial. I thought I needed to buy another one. With this I managed to fix it under 2 minutes. Thanks! :)

StopShop GSM - 25/01/21

Excellent instructions, I searched the web for days looking for the solution. I could not determine if it was software or hardware, the mouse wheel has always spun free, no clicking. After following your instructions, it clicks when I scroll and the spontaneous jumping is gone. Thanks a million!

Bob Weenig - 22/02/21

Fantastic instructions! I was struggling to find out how the spring should be placed for the proper ratcheting behavior. This walk-through got me there in less than a minute. Thank you very much!

Sean Smith -

Is there any way to replace the spring if lost?

Connor -

Thanks so much for the great tutorial. The pictures really helped.

Maureen -

My mouse wheel was spinning freely but scrolled OK. Occasionally it would "catch" and I had to turn it in the opposite direction to free it. I opened the mouse and sure enough, the spring leg was rubbing on the outside edge of the wheel. I popped it back in place and now the wheel works as it should. I can feel the ratcheting action, slight but perceptible. Easy-peasy fix. Thanks!

CHuD Wah -