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Logitech M100 Switch Replacement

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Common causes of a faulty mouse button are frequent use, clicking too hard, and dust getting into the switches. The purpose of this guide is to detail how to replace the switches on your Logitech M100 Mouse with the goal of prolonging the life of your mouse.

This guide does not require specialized knowledge except a basic understanding of a soldering iron. Soldering material is metal with a low melting point. Be cautious of the iron and solder's heat when replacing the mouse clicker, as it very hot and can burn skin. It's also important to work in a well ventilated area as the solder can emit fumes that are not good to breath. For more information about soldering, take a look at the How to Solder and Desolder Connections guide.

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  1. Logitech M100 Switch Replacement, Switches: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Disconnect the mouse from any devices before attempting to remove any parts or starting the repair.

    • Flip your mouse over so the bottom is facing up.

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  2. Logitech M100 Switch Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Use a small Phillips #00 screwdriver to remove the single screw at the bottom of the mouse.

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  3. Logitech M100 Switch Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:03crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Turn your mouse over so it is facing right side up.

    • Use a spudger or your hands to carefully separate the top from the bottom housing.

    • It's important to remove the top housing while leaving the bottom in place, as the scroll wheel and other internal components may fall out otherwise.

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  4. Logitech M100 Switch Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Remove the external cable from the slot at the front of the mouse.

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  6. Logitech M100 Switch Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Remove the circuit board from the mouse by pushing down at the back and lifting up at the front.

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  7. Logitech M100 Switch Replacement: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Lift the scroll wheel from the board.

    • There should be a total of four parts that make up the scroll wheel.

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  8. Logitech M100 Switch Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Pull the USB cable away from the connector in the same direction as the individual wires to remove it from the motherboard.

    • This step may prove difficult with just your hands. Use a spudger if you need to.

    • Pull evenly on the full width of the cable so that no individual wires are overly strained.

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  9. Logitech M100 Switch Replacement: crwdns2935265:08crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Find a suitable method to hold the circuit board in place so you don't have to hold it in your hands.

    • Use a small vice to keep it in place or helping hands for this next step.

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  10. Logitech M100 Switch Replacement: crwdns2935265:09crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:09crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:09crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Use a soldering iron to heat the solder points securing both switches, and remove the switches using tweezers.

    • The soldering iron and the solder holding the switch in place will be very hot and can burn you.

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  11. Logitech M100 Switch Replacement: crwdns2935265:010crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:010crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:010crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Replace each switch and solder it to the circuit board.

    • The soldering wire may conduct heat up to the hand holding it.

    • Be sure to work in a well ventilated space as the solder may emit smoke.

    • You can use tape to hold the switch in place while soldering.

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  12. Logitech M100 Switch Replacement: crwdns2935265:011crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Logitech M100 Switch Replacement: crwdns2935265:011crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Reassemble the mouse by following steps 2-7 in reverse order.

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Congratulations, you have now replaced the clickers on your mouse and can continue using it!

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Diego De La Fuente

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