How do I stop the "Num" light from flashing on my AULA S99 keyboard so I can use it?

A flashing indicator light on the AULA S99 typically signifies that the keyboard is in pairing mode or is experiencing a low battery condition. When the light flashes rapidly, the keyboard is often waiting for a connection and may not register standard typing until the link is established.To resolve this, try the following steps based on your connection mode:Check Connection Mode: Ensure your mode switch (or knob) is set to the correct position for your intended use (2.4GHz, Bluetooth, or Wired).Complete the Pairing: If you are using Bluetooth, the light will flash while searching. On your computer or device, go to Bluetooth settings and select the keyboard to finish pairing. If using 2.4GHz, ensure the USB dongle is firmly plugged into your computer.Sync the Connection: If the keyboard is unresponsive in wired mode, the manual suggests pressing and holding Fn + 4 simultaneously for a moment to sync the connection.Check Battery Level: A flashing light can also indicate low power. Connect the keyboard to your computer's USB port using the provided USB-C cable to charge it.Reset the Num Lock: Try pressing the Num Lock key once to see if it toggles the state, though a persistent flash usually indicates a hardware status (like pairing) rather than just the Num Lock being active.

AULA S99

AULA S99 Wireless Keyboard Instruction Manual

Model: S99 | Brand: AULA

1. Product Overview

The AULA S99 is a versatile wireless keyboard designed for gaming and office use, featuring tri-mode connectivity (Bluetooth, 2.4GHz wireless, and USB-C wired), vibrant RGB backlighting, and programmable keys. Its compact 96% layout includes a numeric keypad while optimizing desktop space. The keyboard is built with an ergonomic design, including a two-stage adjustable stand for comfortable typing.

Image 1.1: AULA S99 Wireless Keyboard in Gradient Purple, showcasing its full layout and RGB lighting.

AULA S99 Keyboard features including Type-C, Ergonomic Design, Win/Mac/iOS/Android compatibility, Gaming/Office Mode, BT/2.4G/Wired, RGB Colour Light, Long Battery Life, and 94% Layout with Numpad.

Image 1.2: Key features of the AULA S99 keyboard, highlighting its multi-platform compatibility and connectivity options.

2. Setup Guide

2.1. What's in the Box

1x AULA S99 Wireless Keyboard (Gradient Purple)
1x USB Cable (for wired connection and charging)
1x Keycap Puller

2.2. Battery Installation & Charging

The AULA S99 keyboard requires 1 AA battery (included). Ensure the battery is inserted with the correct polarity. For charging, connect the keyboard to a computer's USB port using the provided USB-C cable. The keyboard supports charging only via computer USB ports.

2.3. Connectivity Modes

The AULA S99 supports three connectivity modes:

USB-C Wired Mode: For a stable, low-latency connection.
2.4GHz Wireless Mode: Utilizes a USB dongle for wireless connection.
Bluetooth 5.0 Mode: For connecting to multiple devices without a dongle.

AULA S99 Keyboard showing super-convenient switching between 5 devices: USB-C Wired, 2.4GHz Wireless (FN+), and BT5.0 (FN+1/2/3).

Image 2.1: Illustration of the keyboard's multi-device switching capabilities across different connectivity modes.

2.4. Connecting Your Keyboard

2.4.1. USB-C Wired Connection

Connect the provided USB-C cable to the keyboard's port and the other end to your computer's USB port.
The keyboard will automatically be recognized and ready for use.
Note: If the wired connection is not working on a Windows computer, press and hold Fn + 4 simultaneously for a moment to sync.

2.4.2. 2.4GHz Wireless Connection

Locate the 2.4GHz USB dongle (usually stored in a compartment on the keyboard).
Plug the USB dongle into an available USB port on your computer.
Switch the keyboard to 2.4GHz wireless mode using the mode switch or knob (refer to the keyboard's indicators).
The keyboard should connect automatically.

2.4.3. Bluetooth Connection

Switch the keyboard to Bluetooth mode using the mode switch or knob.
Press and hold Fn + 1, Fn + 2, or Fn + 3 to enter pairing mode for one of the three Bluetooth channels. The indicator light will flash.
On your device (PC, Mac, iOS, Android, Xbox), open Bluetooth settings and search for

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.