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How to Fix the Scroll Wheel on a Keychron M1 Mouse

Introduction

If your Keychron M1 mouse is experiencing scroll wheel issues—such as inconsistent scrolling, sticking, squeaking, or no response—this guide can help. These problems are commonly caused by dust buildup, normal wear, or a faulty scroll wheel encoder.

In this guide, you’ll open the mouse to access the scroll wheel and encoder so they can be cleaned, adjusted, or reseated. You can also use this guide if you need to replace the scroll wheel.

The repair is beginner-friendly and requires only a few simple steps, making it a good introduction to mouse repair even if you’re new to fixing electronics.

Be sure the mouse is off before you begin this repair.

What you need

  1. How to Fix the Scroll Wheel on a Keychron M1 Mouse, How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 1, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse, How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 1, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse, How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 1, image 3 of 3

    • Use a spudger or your fingernail to peel the mouse feet from the bottom of the mouse to reveal two screws.

    • Save the screw cover, as it can be used again during reassembly.

    • Use a JIS #0 screwdriver to remove the two 6.0 mm screws from the bottom of the mouse.

    Edit

  2. How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 2, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 2, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 2, image 3 of 3

    • Insert the spudger into the seam at the back of the mouse, between the top and bottom case, to release the clips holding the bottom cover.

    • Start from the back, and slide the spudger to the middle until you reach the front.

    • Lift the top until you can see the cables connecting the top and bottom case.

    • Be very gentle when detaching the top and bottom parts of the mouse, and don't pull them apart.

    Edit

  3. How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 3, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 3, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 3, image 3 of 3

    • Use the tip of the spudger to push the black plastic locking tab away from the socket—it should only move about 1–2 mm.

    • When the locking tabs are open, they are in the unlock position.

    • Use tweezers to slide all three ribbon cables from their connector on the motherboard.

    Edit

  5. How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 4, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 4, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 4, image 3 of 3

    • Use a JIS #0 screwdriver to remove two screws from the PCB:

    • One 5.0 mm-long screw

    • One 6.0 mm-long screw

    Edit

  6. How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 5, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 5, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 5, image 3 of 3

    • Gently pull the retaining clips back with a spudger or your fingers to release the PCB.

    • Remove the PCB from the bottom case.

    Edit

  7. How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 6, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 6, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 6, image 3 of 3

    • Use a cotton swab and Isopropyl alcohol, and gently clean both the wheel brackets and the scroll wheel itself.

    • Use a plastic-safe PTFE spray to lubricate the mouse and wheel brackets.

    Edit

  8. How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 7, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 7, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 7, image 3 of 3

    • Gently place the PCB back onto the bottom of the mouse until you hear both latches click into place.

    • That ensures it's in the proper position and will not fall out when reassembling your mouse.

    • Replace the 5.00 mm JIS #J0 screw.

    • Replace the 6.00 mm JIS #J0 screw.

    Edit

  9. How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 8, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 8, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 8, image 3 of 3

    • When inserting the ribbon cables into their sockets, ensure they are placed correctly and not backwards or in the wrong sockets.

    • Fully insert each cable into its socket under the locking tab.

    • Use a spudger or clean fingernail to push in the locking tab, securing each cable.

    Edit

  10. How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 9, image 1 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 9, image 2 of 3 How to Fix the Scroll Wheel on a Keychron M1 Mouse: step 9, image 3 of 3

    • Before closing the mouse, you can plug it into a charging cable to test whether the RGB lights in the mouse are functional. If they turn on, this means the reassembly process has been successful.

    • Align the top and bottom casing.

    • Start at the front of the mouse and press the top and bottom together until you hear a click. After the front has been secured, move to the middle, then the back.

    • Use a JIS #0 screwdriver to secure the two 6.0 mm screws on the bottom of the mouse and replace the screw cover.

    • Your mouse should be back together and working!

    Edit
Conclusion

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

Author

with 1 other contributor

James Manlapaz

Member since: 09/25/25

169 Reputation

1 Guide authored

Badges: 2

Team

CSU Los Angeles, Team 6-23, Harris Fall 2025 Member of CSU Los Angeles, Team 6-23, Harris Fall 2025

CSULA-HARRIS-F25S6G23

3 Members

1 Guide authored

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