When your Cherry MX keyboard shows flashing red lights on the Scroll Lock or Num Lock keys, it can be concerning, especially if you rely on your keyboard for productivity or gaming. These lights typically indicate an issue that needs your attention, such as a firmware problem, hardware malfunction, or a mode activation. Understanding how to address this issue can save you frustration and prevent unnecessary downtime.
The problem often stems from one of three areas: software conflicts, firmware corruption, or incorrect keyboard settings. For example, if you’ve recently updated your computer’s operating system or installed new drivers, these changes could disrupt communication between your keyboard and PC. Similarly, a corrupted firmware update or accidental activation of certain modes (like gaming mode or macro recording) can trigger these flashing lights.
In this guide, we’ll walk you through clear, actionable steps to diagnose and resolve the issue. Whether you’re a beginner or a tech-savvy user, you’ll find practical solutions, including resetting your keyboard, updating firmware, and troubleshooting driver issues. By the end, you’ll not only fix the problem but also gain a better understanding of how to maintain your Cherry MX keyboard for optimal performance.
Quick Reference
- Check for hardware resets: Perform a keyboard reset to clear temporary glitches.
- Update firmware: Use the manufacturer’s software to ensure your keyboard has the latest updates.
- Avoid mode confusion: Identify and deactivate any accidental mode activations causing the flashing lights.
Step 1: Perform a Keyboard Reset
Often, flashing red Scroll Lock or Num Lock lights can be resolved by resetting your keyboard. This is a quick and effective first step to clear any temporary glitches or misconfigurations.
How to Reset Your Cherry MX Keyboard
- Unplug the keyboard: Disconnect your keyboard from your computer and wait for 10-15 seconds.
- Perform a power drain: While unplugged, press and hold the Esc key for about 5-10 seconds to discharge any residual power.
- Reconnect the keyboard: Plug the keyboard back into your computer and check if the flashing lights have stopped.
If the lights persist, some Cherry MX keyboards offer a built-in reset function. Consult your user manual for specific key combinations. For example, many Cherry MX models can be reset by holding down the Esc key while plugging the keyboard back into the computer.
When to Use This Step
This method is particularly effective if the flashing lights appeared suddenly after a power surge, accidental key press, or during normal operation. If the issue persists after a reset, proceed to the next section.
Step 2: Update Keyboard Firmware
Outdated or corrupted firmware can cause erratic behavior, including flashing status lights. Updating the firmware ensures your keyboard operates with the latest fixes and features provided by the manufacturer.
How to Update Firmware
- Download the software: Visit the official website of your keyboard’s manufacturer and download their proprietary software (e.g., Cherry Utility Software).
- Install the software: Follow the on-screen instructions to install the software on your computer.
- Connect your keyboard: Make sure your keyboard is plugged into a USB port directly connected to your computer (avoid USB hubs).
- Check for firmware updates: Open the software and navigate to the firmware update section. If an update is available, follow the prompts to install it.
- Restart the keyboard: After the update, unplug your keyboard, wait a few seconds, and reconnect it to ensure the changes take effect.
Firmware updates not only fix bugs but also improve overall functionality. For instance, updates may address issues with lighting modes or enhance compatibility with your operating system.
Tips for a Successful Firmware Update
- Backup settings: If your keyboard allows custom profiles or macros, back them up before updating the firmware.
- Stable power supply: Ensure your computer is plugged into a reliable power source during the update process to avoid interruptions.
- Follow instructions carefully: Interrupting a firmware update can corrupt your keyboard’s software, leading to further issues.
Step 3: Troubleshoot Driver Issues
Drivers act as the communication bridge between your keyboard and computer. If they’re outdated or incompatible, they can cause issues like flashing lights. Resolving driver conflicts is a critical step in troubleshooting.
How to Update or Reinstall Drivers
- Access Device Manager: On Windows, press Windows + X and select Device Manager. On macOS, use the System Preferences to check connected devices.
- Find your keyboard: In Device Manager, expand the Keyboards section and locate your Cherry MX device.
- Update the driver: Right-click on the keyboard and select Update Driver. Choose the option to search automatically for updated driver software.
- Reinstall the driver (if needed): If updating doesn’t work, right-click and select Uninstall Device. Restart your computer, and the operating system will automatically reinstall the keyboard driver.
For advanced users, you can download the latest drivers directly from the manufacturer’s website and install them manually.
When to Use This Step
If the flashing lights began after a system update or driver change, this step is essential. It’s also useful if you notice other issues, like keys not responding or erratic behavior.
Step 4: Check for Accidental Mode Activation
Many Cherry MX keyboards come with advanced features like gaming mode, macro recording, or custom lighting profiles. Accidentally activating these modes can cause the Scroll Lock or Num Lock lights to flash.
How to Identify and Deactivate Modes
- Consult the manual: Refer to your keyboard’s user manual to understand the function of each mode and its associated indicator light.
- Reset lighting modes: Use the designated key combination (e.g., Fn + Esc) to reset lighting profiles to default.
- Disable gaming mode: Look for a dedicated gaming mode key or key combination (e.g., Fn + F10) and toggle it off.
- Stop macro recording: If your keyboard is in macro recording mode, press the macro key to exit.
These modes are designed to enhance functionality but can be confusing if activated unintentionally. Resetting them to default often resolves the flashing light issue.
Preventing Future Activation
- Use key locks: Some keyboards allow you to lock function keys to prevent accidental activation.
- Customize profiles: If your keyboard supports software customization, create profiles tailored to your needs and save them.
Why is my keyboard still flashing after trying all steps?
If none of the steps work, the issue might be hardware-related. Inspect the keyboard for physical damage, such as loose connections or liquid spills. Contact the manufacturer for support or consider professional repair services.
Can I fix firmware corruption without professional help?
In most cases, you can fix firmware corruption by performing a forced update. Use the manufacturer’s software to reinstall the firmware. If this fails, contact customer support for advanced troubleshooting or replacement options.
How do I know if my keyboard is under warranty?
Check the purchase receipt or the manufacturer’s website for warranty details. Most Cherry MX keyboards come with a 1-2 year warranty. If your keyboard is still covered, reach out to the manufacturer for a replacement or repair.