You likely triggered a factory reset or a macro recording mode. Press FN + Esc to cancel.

I can give you the exact key combination or software compatibility for your specific device. Share public link

Once installed, these apps typically offer a "Lighting" or "RGB" tab to select colors from a full spectrum.

If you prefer to use a visual interface with sliders and color wheels, or if your keyboard's onboard controls are limited, free third-party software is an excellent solution. These universal applications can often detect and control RGB hardware from a huge range of manufacturers, including NOS.

Many budget-friendly gaming keyboards are "driverless," meaning they are designed to work via the built-in shortcuts described in Method 1. In fact, one customer review for a specific NOS model noted that "the driver for this so you can change rgb from desktop does not work... not a huge deal given you can change it on the keyboard itself" . This suggests that the primary control method is the onboard shortcut.

These require no purchase or subscription.

: Press FN + Arrow Up to increase brightness. Press FN + Arrow Down to dim the lights or turn them off completely.

If your specific model isn't supported by official software, you can try free, open-source alternatives:

Changing the color on a NOS keyboard can usually be done for free via built-in shortcuts, free manufacturer software, or open-source third-party tools. Start by testing hardware key combinations, then move to vendor software if available, and fall back to trusted community tools for unsupported models. With careful identification of your model and cautious use of downloads, you can achieve customizable lighting without spending extra money.

On many models, pressing Fn + End or Fn + Tab allows you to cycle through solid colors (Red, Blue, Green, etc.) while in a static mode.

Caveats:

If your NOS keyboard supports per-key RGB and the shortcuts don’t work, you’ll need software. Fortunately, NOS does not force you to pay for proprietary software. Instead, they often use generic drivers.