Click... or Don’t
My Logitech MX Master 3S recently developed a frustrating flaw: the right click stopped registering, sometimes working after five tries, other times not at all. For a mouse that’s otherwise brilliant, this small defect made it nearly unusable.
Rather than replacing it, I decided to repair it myself, and it turned out to be a simple and satisfying process. Here's what I used and how I did it.
What Was Wrong?
The issue was mechanical: the microswitch under the right button had likely worn out from use. These switches degrade over time, losing their tactile feedback and consistency.
Parts I Ordered
Two essential (and affordable) items from AliExpress:
- Silent Click Switches – 10pcs Mute Button 6×6×7.3mm Silent Switch – £0.90
- Replacement Feet – MX Master 3S Skate Pads Set – £2.06
The replacement feet are important because you need to remove the original ones to access the screws underneath the mouse.
Tools I Used
Here’s the toolkit I used for the job:
- Precision screwdriver – to open the mouse
- Soldering iron and solder – to install the new switch
- Desoldering wire – to cleanly remove the old solder
- Desoldering pump (optional) – helpful but not essential
- Plastic prying tools – for safe disassembly without damaging the plastic
- Multimeter (optional) – just used to verify continuity; not necessary for this repair
The Repair Process
- Remove the mouse feet to reveal the hidden screws underneath.
- Unscrew the shell and open the mouse using prying tools.
- Locate the faulty switch.
- Desolder the old microswitch from the board.
- Solder in the new silent switch, ensuring clean joints.
- Reassemble the mouse and apply the new pads.
The entire process took under an hour, including careful disassembly and soldering.
Inside the MX Master 3S
Here’s a shot of the internals once the mouse was opened:
The right-click switch is on the right side of the main PCB.
Video Timelapse
If you'd like to watch the full process, here's a short timelapse:
Final Result
The new silent switch feels fantastic, quiet, tactile, and most importantly, reliable. The mouse is now fully functional again, and I gained the added satisfaction of fixing it myself.
If your MX Master is acting up, don’t give up on it, this repair is cheap, simple, and extremely worth it.
- Halil