Logitech M325c Mouse Buttons Replacement & Disassembly Guide

简介

Simple guide on how to disassemble and replace the mouse buttons on the M325c to Kailh Red mute mouse switches. Basic soldering and desoldering skills required for the replacement.

你所需要的

步骤 1 Gather materials & equipment

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, Gather materials & equipment: 步骤 1 中的图像 1，1

Gather all your materials and equipment together.
I will be using Kailh red mute switches in the build, but any two or three pin switches that fit the footprint for generic mouse switches should also work.

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步骤 2 Housing disassembly

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, Housing disassembly: 步骤 2 中的图像 1，2

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, Housing disassembly: 步骤 2 中的图像 2，2

Take the back cover and battery off
Use an exacto knife or just peel away the sticker to reveal the screw hole circled in the photo
Unscrew the screw
Use your fingernail or something similar to wedge the bottom of the housing apart
There will be resistance from the top part of the housing, as depicted in the second photo, there are four pieces from the top and bottom housing that hold onto each other.
Apply horizontal pressure and press from the mouse wheel to slide the top and bottom housing apart.

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步骤 3 PCB disassembly

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, PCB disassembly: 步骤 3 中的图像 1，2

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, PCB disassembly: 步骤 3 中的图像 2，2

You should now just have the PCB attached to the bottom housing.
There are two clips shown in the second photo that hold the PCB to the bottom housing
Use your fingernails or something similar to pry the clips away from the PCB.
After this step, the mouse wheel should detach from the PCB on its own.
The PCB may still be attached to the housing from the battery coil wires. Carefully remove them from the housing.

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步骤 4 Desoldering switches and soldering

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, Desoldering switches and soldering: 步骤 4 中的图像 1，3

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, Desoldering switches and soldering: 步骤 4 中的图像 2，3

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, Desoldering switches and soldering: 步骤 4 中的图像 3，3

At this stage, you should have the PCB separated from the housing.
Desolder the two mouse switches as labeled on the second photo.
As the Kailh Red Mute switches only have two legs, they use only the first two holes in the PCB.
The third photo shows the new switches soldered onto the PCB. The switches should be aligned as shown.
Solder the new switches onto the PCB

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步骤 5 Reassembly

Logitech M325c Mouse Buttons Replacement & Disassembly Guide, Reassembly: 步骤 5 中的图像 1，1

Test out the new buttons on the PCB before reassembly.
Make sure that both the switch on the bottom housing and the corresponding switch on the back of the PCB are both set to the OFF position.
Attach the PCB back to the bottom housing, with extra caution when handling the battery coil wires.
Attach the mouse wheel to the PCB and bottom housing.
Attach the top housing back to the bottom housing by sliding the top pieces of the housing together.
Screw the screw from the battery compartment.