Mechanical keyboard with 3 connection options (wired, Bluetooth, 2.4 GHz) Aula F75 User Guide

Operating Manual Compact Keyboard Aula F75

Features

• Keyboard polling rate: Wired mode - 1000 Hz, 2.4G mode - 1000 Hz, Bluetooth mode - 125 Hz.
• Three connection modes: 2.4 GHz / Bluetooth 5.0 / USB-C wired.
• Sound-insulated linear switches (grey color).
• Connection via cable, Bluetooth, 2.4 GHz (transmitter included).
• Built-in 4000 mAh battery.
• RGB backlighting.
• Hot-swappable switches.
• Size = 75%.
• Roller for effect and multimedia control.
• Dual feet.
• Power/charging via Type-C (cable included).

Specifications

Type: Mechanical (linear sound-insulated switches)
Number of keys: 80
Key travel: 4.0 mm
Dimensions: 322.7 x 143.2 x 43.1 mm
Weight: 1023 g
Battery: 4000 mAh
Connectivity: Wired, 2.4 GHz, Bluetooth
Battery life: 17.5 hours (with lighting effects), 266 hours (without backlighting)
Compatibility: Win XP/7/8/10/11 / MAC / Android / iOS

Package Contents

Aula F75 Keyboard
2.4 GHz transmitter
Type-C to USB-A cable
4 spare switches
Keycap puller
User manual

Description of Keyboard Functions

1. Caps Lock Indicator
2. Type-C Interface
3. Toggle Switch (left for 2.4G connected/off, right for BT)
4. USB Receiver
5. Charging Indicator
6. Multifunctional Wheel

Wired Mode. Turning the Keyboard On/Off

1. Switch to [Wired] mode (middle position of the toggle switch)

2. Connect the Type-C USB cable to the corresponding port on the keyboard

3. Connect the USB port of the cable to the USB port of the computer

Instructions for Turning the Keyboard On/Off in Wired Mode

Set the switch to the wired position (without a USB power source), the keyboard will turn off, and the built-in battery will stop supplying power to the keyboard.

2.4G Connection Instructions

1. Switch to [2.4G] mode

2. Remove the [USB receiver] from the slot in the upper left corner of the keyboard.

3. Connect it to the USB port of the computer, then complete the quick 2.4G pairing using the [Fn] + [~] key combination.

• Manual Pairing: Press and hold the "FN+~" key combination for about 3 seconds, the blue indicator will flash quickly to enter pairing mode. At this time, insert the receiver into the computer’s USB port. The blue indicator of the "~" key will stay on for 2 seconds, and the 2.4G connection will be successfully established.

(!) Note: During manual code pairing, keep the keyboard close to the receiver.

When performing 2.4G code pairing, first switch the keyboard to code pairing mode before connecting the receiver to the computer.

Bluetooth Connection Instructions

1. Switch to [BT] mode

2. Press the key combination [Fn] + [1] to switch to BT1 mode, hold for about 3 seconds until the blue indicator lights up for quick pairing.

3. Find the pairing name [AULA-F75 3.0] or [AULA-F75 5.0]. The blue indicator will stay lit for 3 seconds after a successful connection, then turn off.

Key combination for quick device switching:

Short press:
Device 1 - [Fn] + [1]
Device 2 - [Fn] + [2]
Device 3 - [Fn] + [3]

• Short pressing the Fn + number keys 1, 2, or 3 makes the blue indicator flash quickly, indicating the keyboard enters pairing or searching mode. In reconnection state, the blue indicator stays lit for 3 seconds.
• Press Fn + number key 1, 2, or 3 to switch between devices.
• Check the keyboard’s battery level, which may be displayed on the computer when connected via Bluetooth.

Backlight Effect Settings

Using the key combination FN + [|] and the scroll wheel, you can switch between 16 RGB lighting effects and disable them, for a total of 17 modes:

Wave
Follow the wave
Sine wave
Rotating windmill
Colorful waterfall
Blooming flowers
Custom
Off
Steady light
Breathing
Dream rainbow
Explosion
Raindrops
Rainbow wheel
Surface ripple
No trace left on snow
River

With the driver, the RGB music rhythm lighting effect is available, offering 10 different rhythm lighting modes to choose from.

Keyboard Shortcuts for Backlight Settings

[Fn] + [\] - Switch lighting mode
[Fn] + [Tab] - Change lighting color
[Fn] + [] - Increase brightness
[Fn] + [] - Decrease brightness
[Fn] + [] - Decrease speed
[Fn] + [] - Increase speed

Operating System Mode Switching

• Fn+WIN = Lock/Unlock WIN (the white indicator lights up when the WIN key is locked. In this state, the WIN key cannot be used.)

• When switched to Mac system, the left WIN/left ALT keys become interchangeable (the WIN key is not locked).

[Fn] + [Q] - Android System
[Fn] + [W] - Windows System
[Fn] + [E] - Mac System

Key Combination Description

[Fn] + [ESC] - Hold for 3 seconds to restore factory settings
[Fn] + [`~] - Hold for 3 seconds for 2.4G code pairing
[Fn] + [1] - Bluetooth Device 1
[Fn] + [2] - Bluetooth Device 2
[Fn] + [3] - Bluetooth Device 3
[Fn] + [WIN] - Lock the WIN key, in locked state it cannot be used
[Fn] + [U] - PRTSC
[Fn] + [I] - SCRLK
[Fn] + [O] - PAUSE
[Fn] + [DEL] - INS
[Fn] + [END] - HOME
[Fn] + [Left SHIFT] - Adjust charging indicator lighting effect
[Fn] + [B] - Power indicator

• Press FN+ESC to restore the factory default lighting mode; the originally paired Bluetooth device will not be disconnected.
• In 2.4G/Bluetooth mode, press and hold FN+B to check the battery level. When fully charged, number keys 1 to 0 will light up green. As the battery discharges, the green indicator will gradually turn off, and when the battery is low, the red indicator will light up. Release to restore the lighting effect.

FN+Q = Android System (the red indicator on the Q key flashes for 3 seconds). The single press function is assigned to the F keys, while the Fn combination provides alternative functions.

FN+W = Windows System (the red indicator on the W key flashes for 3 seconds). The single press function is assigned to the F keys, while the Fn combination provides system shortcuts.

FN+E = Mac System (the red indicator on the E key flashes for 3 seconds). The single press function is assigned to the F keys, while the Fn combination provides alternative shortcuts.

Instructions for Adjusting the Multifunctional Roller

• Switching between two modes: long press of the mode button allows switching between gaming and office modes.

Gaming Mode (WIN and CAPS keys, green indicator flashes 3 times)

• Short press of the mode button cycles through 16 lighting effects.

• Roller clockwise (increase backlight brightness)
• Roller counterclockwise (decrease backlight brightness)

Office Mode (WIN and CAPS keys, blue indicator flashes 3 times)

• Short press of the mode button = multimedia function (mute)
• Roller clockwise = multimedia function (volume +)
• Roller counterclockwise = multimedia function (volume -)

Description of the Current Status Indicator

• Press and hold the FN key to view:

Current connection mode (2.4G, Bluetooth, wired);
Current Bluetooth channel (channels 1, 2, 3);
Current system mode (Android, WIN, Mac)

The corresponding keys listed above will light up. Release the key to restore the lighting effect.

• 2.4G Mode Indicator = "~" key
• Wired Mode Indicator = "4" key
• Bluetooth Channel Indicator = "1, 2, 3" keys
• System Mode Indicator = "Q, W, E" keys

Description of Intelligent Sleep Mode

In Bluetooth / 2.4G mode, the keyboard will automatically enter power-saving mode if no actions are performed within one minute. Press any key to activate the keyboard.

Charging Instructions

• Connect the keyboard to the computer using the included USB cable to charge it. During charging, the charging indicator flashes. Once fully charged, the indicator remains solid.
• Type-C connection provides more reliable and stable performance.

Charging Guidelines

1. It is recommended to use only the computer’s USB port for charging the keyboard.
2. Do not use mobile phone fast-charging devices for charging the keyboard.
3. Do not use low-quality or non-standard power adapters for charging.
4. Do not use power adapters operating under overvoltage or overload conditions.
5. Keep the keyboard away from high-temperature equipment during charging.
6. Turn off the power if the keyboard will not be used for an extended period.

The above charging instructions also apply to other rechargeable devices (keyboard/mouse/headphones/speakers, etc.).

Technical Specifications

Number of keys: 80
Total key travel: 4.0 mm
Multifunction keys: FN+
Product dimensions: 322.7 (L) x 143.2 (W) x 43.1 (H) ± 1 mm
Product weight: approx. 975 g (without cable/receiver), approx. 1023 g (including cable/receiver)
Charging voltage/current: 5 V DC === 700 mA
Rated voltage: 3.7 V DC (fully charged: 4.2 V)
Rated current: 230 mA at 3.7 V (default lighting effect), 15 mA (all lights off)
Battery life: approx. 17.5 hours (default lighting effect), approx. 266.5 hours (with lighting off)
Battery capacity: 4000 mAh lithium rechargeable battery
Charging interface: Type-C interface

Computer System Requirements:

Wired/2.4G mode: Windows ALL, WIN XP, WIN7, WIN8, WIN10 (drivers may be required for Win95 and Win98).
Wired/2.4G receiver mode: requires USB 1.1 port or higher.
Bluetooth mode "Device name: AULA-F75 3.0 KB" for WIN7 and lower systems.
Bluetooth mode "Device name: AULA-F75 5.0 KB" for WIN8, WIN10 and higher systems.
Bluetooth mode: MAC computers, Android-based phones or tablets, iOS-based phones or tablets with Bluetooth BT3.0, BLE4.0, BLE5.0 or higher.
Hardware connection: USB / 2.4G receiver with hot swap support (plug and play).

Resetting the Aula F75 Keyboard and Connecting in Wi-Fi 2.4 Mode

1. Check Battery Level

Ensure the keyboard is fully charged. If the charge is insufficient, connect the device to a power source and wait until it is fully charged.

2. Keyboard Reset

To reset the keyboard, press and hold the FN + ESC keys for 3 seconds.

3. Pairing in 2.4G Mode

To enter 2.4G pairing mode, switch to the corresponding mode, then press and hold the FN + ` (tilde) keys for 4 seconds. Connect the receiver to the computer’s USB port to complete the pairing process.

4. Check USB Connection

If the keyboard is not recognized, try connecting the receiver to another USB port on your computer or test the device on another computer.

Troubleshooting

If the keyboard does not connect to your device, try the following steps:

1. Check keyboard connection:
- Ensure the keyboard is properly connected to the Aula F75. Try disconnecting and reconnecting the cable.
- If possible, try connecting the keyboard to another port on the Aula F75.

2. Update drivers:
- Check if the latest drivers are installed for this keyboard model.
- Download and install the latest drivers from the official Aula F75 or keyboard manufacturer’s website.

3. Reset Aula F75 settings:
- Perform a factory reset of the device.
- The reset guide can be found in the user manual or on the manufacturer’s website.

4. Check compatibility:
- Ensure your keyboard is compatible with Aula F75.
- Connect another keyboard to check if it is recognized by the software.

5. Contact technical support:
- If the previous steps do not help, contact Aula F75 technical support.
- Specialists will help diagnose the issue and provide a solution.

Solution for Non-Responsive Aula F75 Keyboard After Connecting to Software

If after connecting the Aula F75 keyboard to the software it stops working (does not respond to mode switching, no backlight, or other signs of activity), follow these steps for diagnostics and troubleshooting.

1. Check connection and device recognition:

- Make sure the keyboard is recognized by the computer. If the device does not appear in the system, you may need to contact a service center.
- Set the keyboard mode switch to the central position and connect it to the PC via cable.
- To verify if the keyboard is recognized by the system, press Win + R, type `control printers`, and press Enter. In the Devices and Printers window, look for a device named "Gaming KB". For confirmation, disconnect and reconnect the keyboard — its presence in the list should change if it is properly detected.

2. Complete keyboard firmware update:

- If the keyboard is recognized as a USB device, it is likely stuck during a firmware update.
- To finish the firmware update, open the Updater.exe file, located by default at: `C:\Program Files (x86)\AULA\F75\Dev\kb\1`.
- Wait until the program window displays the message "PASS", indicating that the update is complete.
- After this, disconnect the keyboard from the cable and switch it to Bluetooth or 2.4GHz mode. If backlighting and indicators appear, the device is working correctly.

3. Connecting to a new PC:

- Note that the issue may reoccur when connecting the keyboard to a new computer with the software installed.
- If you plan to use the keyboard on multiple devices (e.g., at home and at work), the first connection to a new PC must be done via cable with the mode switch set to the central position. This ensures the firmware update process completes correctly.
- Wait until the update is finished (the "PASS" message should appear in the Updater.exe window), and only then start using the main features of the keyboard software.

(!) Important: Do not disconnect the keyboard from the PC until the firmware update process is fully completed. After the update, you can close the updater program and continue using the device’s full functionality.

Warranty Information

Dear Customer!

Thank you for purchasing an AULA series product! The warranty card is proof of quality for AULA products and should be retained by the user. With the warranty card, you will be able to access after-sales service provided by AULA.

The warranty card is supplied with every product and cannot be replaced if lost, so please keep it in a safe place.

I. With this warranty card, you are entitled to the following rights and services:

1. Product return service: Within seven days from the date of sale, if product quality issues arise in accordance with national “three guarantees” legislation, and if the product and packaging remain intact, the item can be returned to the seller or designated locations. Upon presentation of a valid purchase certificate, the product will be refunded at the purchase price.

2. Warranty service: If the AULA after-sales service center detects a fault within 12 months from the date of purchase, you are entitled to free service.

The following situations are not covered by free service:
1. Exceeding the specified warranty period;
2. Inability to present a valid warranty card, or if the original serial number label has been altered, replaced, torn, or otherwise damaged;
3. The product has no serial number, or the model indicated on the warranty card does not match the actual product;
4. Malfunction or damage caused by improper use, maintenance, or storage;
5. Malfunction or damage caused by repair, replacement, or disassembly performed by unauthorized personnel;
6. Malfunction or damage caused by accidents or force majeure circumstances;
7. Services, additional accessories, or gifts promised by sellers but not included in the standard package are not covered by warranty service;
8. Malfunction or damage caused by unstable power supply or voltage fluctuations.