To replace an MX switch on a hot-swappable mechanical keyboard, you will first carefully remove the old switch using a switch puller, and then correctly insert the new switch into the hot-swap socket. This process allows for customization and repair without requiring soldering.
How Do You Replace a Hot-Swappable MX Switch?
Replacing a hot-swappable MX switch is a straightforward process that involves two primary steps: removing the existing switch and installing the new one. This guide focuses on switches designed for hot-swap PCBs, which do not require desoldering.
Essential Tools for Switch Replacement
Before you begin, gather the necessary tools:
- Switch Puller: An indispensable tool for safely removing switches from the plate.
- New MX Switch(es): The replacement switch(es) you intend to install. Ensure compatibility with your keyboard's sockets (e.g., 3-pin or 5-pin).
- Keycap Puller (Optional but Recommended): While you can often pull keycaps off by hand, a keycap puller makes it easier and reduces the risk of damaging the keycap or switch.
- Tweezers (Optional): Useful for gently straightening any bent pins on a new switch.
| Tool | Purpose |
|---|---|
| Switch Puller | Removes the switch from the keyboard plate and PCB. |
| New MX Switch | The replacement component. |
| Keycap Puller | Detaches keycaps safely. |
| Tweezers | Corrects bent switch pins for proper installation. |
Step-by-Step Guide to Replacing an MX Switch
Follow these steps carefully to ensure a smooth and damage-free replacement.
1. Prepare Your Keyboard
- Unplug Your Keyboard: Always disconnect your keyboard from the computer to prevent accidental inputs or short circuits during the process.
- Remove the Keycap: Using a keycap puller or by gently wiggling and pulling with your fingers, remove the keycap from the switch you intend to replace. This exposes the switch body.
2. Removing the Old Switch
This is where your switch puller comes into play.
- Position the Switch Puller: Get your switch puller. You're going to place the switch puller on top of the switch, ensuring its prongs align with the small clips on the north and south (or sometimes east and west) sides of the switch housing. These clips hold the switch firmly to the keyboard's plate.
- Engage and Pull: Squeeze the switch puller firmly to depress these clips. Once engaged, gently but steadily pull the switch straight up and out of the socket. Avoid wiggling excessively, as this could damage the hot-swap socket or the PCB. If the switch doesn't come out easily, ensure the clips are fully depressed.
3. Inspecting the New Switch
Before installation, take a moment to examine your new switch.
- Check for Bent Pins: Look at the two metal pins on the bottom of the switch. These are delicate and can easily bend during shipping. If any pins are bent, use a pair of tweezers to carefully and gently straighten them until they are perfectly vertical. Bent pins can prevent the switch from seating properly and may damage the hot-swap socket.
- Verify Pin Count: Ensure the new switch has the correct number of pins (typically 3-pin or 5-pin) for your keyboard's PCB. Most modern hot-swap PCBs support both.
4. Installing the New Switch
Careful alignment is crucial here to prevent damaging the hot-swap sockets.
- Align the Switch: Position the new switch over the vacant socket on your keyboard's PCB. Pay close attention to the orientation—most switches have a small LED cut-out or a specific stem orientation that should match the PCB's layout. Ensure the two metal pins on the bottom of the switch align perfectly with the small holes in the hot-swap socket.
- Press Firmly: Once aligned, apply firm, even pressure directly down on the switch until it clicks into place. You should feel it seat securely. Never force the switch if it doesn't go in easily; this is a strong indicator of bent pins or improper alignment, which can permanently damage the hot-swap socket. Remove the switch, re-inspect the pins, and try again.
- Verify Seating: Ensure the switch is flush with the keyboard's plate and that there are no gaps.
5. Test the New Switch
- Reattach Keycap: Place the keycap back onto the stem of the newly installed switch.
- Plug In Keyboard: Connect your keyboard to your computer.
- Test Functionality: Open a text editor or a keyboard testing tool and press the key several times to ensure it registers correctly and feels consistent with other keys.
By following these steps, you can confidently replace any hot-swappable MX switch on your mechanical keyboard, restoring functionality or customizing your typing experience.
