How to Fix it When a Mechanical Keyboard Key is Not Working？

Mechanical keyboard are trending because of their exceptional durability and easily customizable features. However, sometimes unforeseen instances such as liquid spills, gamers' rage, and damage during traveling can happen, which may stop the mechanical keyboards from working. So the skill of fixing a keyboard key when it stops working goes a long way, especially for pro gamers and traveling professionals who must carry their gear into places like competitions and meetings. Malfunctioning keys can have a dramatic effect on their workflow.

So what to do when a key is not working, and how to start the troubleshooting process? Do you feel puzzled? No worries! In this guide, we will take you step by step, from diagnosing the problem to fixing the problem. We also have tips to keep your mechanical keyboard healthy. Continue reading to expand your knowledge!

1. Identify the problem

The repairing process starts with the diagnosis. Figuring out the exact source of the problem is vital to set the course straight. The problem can be related to the software or the device that the keyboard connects to, which could be malfunctioning. So, let's break down the identification process:

● Stuck Keycap

To begin troubleshooting, carefully check the keyboard keycaps and examine them from various angles. It is typical for people to discover a jammed key on their keyboard, which might cause the key to stop working. It is worth noting that the operating system filters out the constant input received from the keyboard.

To find the nature of the problem, run the Windows built-in diagnosis. Press the Windows Logo on the taskbar, and type “Find and Fix Keyboard Problem.” Click the link and follow the on-screen instructions to diagnose if there is a key stuck issue.

● Broken Switch

The mechanical keyboard usually comes with a keycap puller, if you do not have one around, it's better to purchase one. Otherwise, it can damage the mechanical switch. To see if the switch is faulty, remove the keycap using a keycap puller, then observe the housing and stem for any damage.

● Damaged PCB

If the keycap and switch are healthy, it could be a damaged PCB. Finding if the keyboard circuit is damaged requires physical examination and electrical verifications. Look for physical damage like cracks, burns, or liquid ingress. Next, use a multimeter to check individual switch connections for continuity.

● Check the Connection

For a wired keyboard, observe the data connection wire closely at the point where it enters into the keyboard. Look for any breakage or damage. Observe the cable up to the other end of the wire that connects to the computer.

If your keyboard has a removable wire, change the wire and check again. For wireless keyboard, plug in a cable to form a wired connection. If the problem persists, then it is a driver problem.

After pinpointing the problematic component, we can move to the next step of troubleshooting the issue.

2. Troubleshooting

Troubleshooting will need some tools and cleaning equipment to execute flawlessly. Even if you have a faulty keyboard component, following the upcoming steps will keep your device running top-notch. Here are the necessary tools you will need:

● Micro-Fiber Cloth

● Small Brush

● Rubbing Alcohol

● Lubricant

● Cotton Swab

● Keycap Puller

● Mechanical Switch Puller

Now try the following steps if they are relevant to your problem:

A. Cleaning the Keycaps and Switch

Start by cleaning the keycaps and the switch with the microfiber cloth. With time, dust can build up around the keycaps, causing them to jam. The ingress of liquid can also cause the keycaps to become sluggish in response and sometimes get stuck.

Do not use silicon-based cleaning spray for cleaning, since the petroleum product can damage plastic and rubber parts. It will also leave a residue that can attract further dust and debris. Start by using a microfiber cloth. Later, switch to using a cotton swab and rubbing alcohol for detailing.

B. Reseating the Keycap

Due to particular jerks or mispositions, the keycap can move slightly away from its neutral position. Try taking out the keycap using the key-cap puller and placing it back in.

C. Testing the Switch on a Different Keyboard

Remove the mechanical key switch from the malfunctioning key and test it on another keyboard. It can help diagnose whether the PCB or the particular socket is damaged.

D. Try Updating your Keyboard's Firmware

High-end keyboards come with built-in firmware, which can be updated using the manufacturer's official website and software. Follow the support section of the manufacturer to find the latest firmware.

3. Fixing the problem

If the problem lies in the keycap, switch, or PCB, multiple approaches exist to fix the issues. Skip to the relevant section that deals with your current situation:

● Replace the Keycap

Keycaps are widely available and generally have a similar design. Replacing a stuck keycap is probably best to avoid any problems in the future. Use a keycap puller to pull out the faulty keycap. Align the new keycap over the mechanical switch and press it down to secure it into position.

● Change the Switch

If your keyboard has a hot-swappable option, then replacing the keyboard switch is relatively easy. Simply use a mechanical switch to pull out the switch from the position and safely plug in the new component.

In the case of a soldered switch, you will need a soldering iron. The first step is to unscrew the keyboard body and expose the PCB. Next, find the soldered points of the mechanical switch. Then, heat the soldering using the machine while pulling the mechanical switch with a switch puller. Finally, plug in the new switch and use a soldering wire to connect the contacts, all of which will ensure a successful replacement of the faulty keyboard switch.

● Repair the PCB

PCB is the base that delivers the keypresses to the computer. After unscrewing the keyboard, observe the PCB from all angles. Spot for damage and use a multimeter to check for discontinuity. After finding the faulty component, use a soldering iron to desold and remove the element. Replace it with a new one. Take the following precautions to avoid damaging the PCB:

○ Carefully use the soldering to prevent overheating the PCB.

○ Do not bridge any traces.

○ Use a lead-free solder.

○ Ensure the new component is compatible.

Tips to Prevent and Repair Keyboard Problems

● Always keep extra parts on hand, like a keycap and mechanical switch.

● Use a high-end, hot-swappable mechanical keyboard like the MEETION Mechanical keyboard MK007 PRO. It is easier to repair.

● Regularly clean your keyboard with compressed air to avoid accumulation of dirt and debris.

● Use a lubricant to keep the mechanical switches healthy.

● Avoid eating and drinking around a keyboard.

● Avoid using harsh chemicals to clean your keyboard. Use a damp cloth or a mild soap solution instead.

● Do not submerge your keyboard in water.

● Let your keyboard dry entirely before using it again.

Conclusion

If a reader follows the tips in the previous section, any investment they make in a keyboard will not go to waste. Mechanical keyboards are highly advanced computer peripherals, and safeguarding and preserving them is essential to maintain optimal computer operation. Gamers, professionals, and workers need their keyboards to perform at their best to avoid any halt in their workflow. It's best to invest in a high-quality keyboard from the start. Take a look at the MEETION mechanical keyboard supplier. They provide excellent performance at an affordable price range. So why wait? Pay a visit to their official website!