MX Master 3 Switch Mod

Disclaimer: Follow this guide at your own risk, only proceed if you understand the risks involved. I'm not liable for any damage to you or your mouse when you follow this guide.

Pre-requisites

  • Kailh Silent (Mute) Switches 6*6*7.3mm
  • Soldering Iron
  • Solder Sucker

Disassembly

Step 1 Screws Removal
Screws Location

There are 5 screws hidden under the 2 sides and back feet

Be gentle if you want to reuse the feet or purchase replacement feet

  • Use a hair dryer to heat the feet up
  • Slowly peel each foot off
Step 2 Top Half Removal
Internal ribbon cable

Do this step slowly as there is a cable connecting the top and bottom

  • Slowly pry the two halves apart
  • Detach the cable from the bottom half
Step 3 Battery Removal
Close up on the internals
  • Unplug the connector
  • Remove the 2 screws
Step 4 Board Removal
Internal screws location

There are two ribbon cables and 7 screws

  • Unplug the 2 connectors
  • Remove all the marked screws
  • Remove the scroll wheel
  • Remove the board

Switch Replacement

Step 5 Desoldering
Solder points
  • Desolder the current switches
Step 6 Solder
Switch replacement completed
  • Solder the new Kailh switches to the top 2 holes

Reassembly

Reconnect all the connectors, screw all the screws back (Review Steps 1 - 4 for the connectors and screws locations) and you're done!

Extras

Kailh Switches

Kailh Silent (Mute) Switches 6*6*7.3mm

Before switch replacement

Board with original Omron switches

Original Omron switches

Omron Switches - D2FC-F-7N

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