Portronics Bubble 3.0 Keyboard – Bluetooth & 2.4GHz Connection Guide

1. Product Overview

Model: Portronics Bubble 3.0
Type: Rechargeable Wireless Keyboard with Built-in Tablet & Mobile Holder

Connectivity Modes:

• 2.4 GHz USB Receiver

• Bluetooth 5.3 (BT1 / BT2 / BT3 multi-device support)

Charging Port:

• USB Type-C

Compatibility:

• Windows 8.1 or later

• macOS 10.14 or later

Section A: Connecting via 2.4 GHz USB Receiver

Step 1: Turn ON the Keyboard

Turn on the keyboard using the power switch located on the keyboard.

Slide the switch to 2.4 GHz mode.

Step 2: Insert the USB Receiver

Insert the USB receiver (dongle) into the USB port of your laptop or desktop.

The keyboard will automatically connect to the device.
No manual pairing is required.

Step 3: Connection Confirmation

Once the connection is successful:

• The keyboard will respond immediately while typing.

If the keyboard does not respond:

• Remove and reinsert the USB receiver

• Try connecting to another USB port

• Ensure the keyboard is powered ON

Section B: Connecting via Bluetooth

The Bubble 3.0 keyboard supports connection with up to three Bluetooth devices simultaneously.

You can switch between devices using BT1, BT2, and BT3 modes.

Step 1: Turn ON the Keyboard

Turn the power switch ON.

Slide the switch to Bluetooth (BT) mode.

Step 2: Select Bluetooth Channel

Use the following key combinations to select a device channel:

• Fn + 1 → BT1 Mode

• Fn + 2 → BT2 Mode

• Fn + 3 → BT3 Mode

Step 3: Activate Pairing Mode

Press and hold the selected Bluetooth key (Fn + 1 / 2 / 3) for 3–5 seconds.

The indicator light will start blinking rapidly, indicating that the keyboard has entered Bluetooth pairing mode.

Step 4: Enable Bluetooth on Your Device

For Windows

1. Open Settings

2. Go to Bluetooth & Devices

3. Turn Bluetooth ON

4. Click Add Device

5. Select Bluetooth

6. Choose Bubble 3.0 BT1 / BT2 / BT3

7. Click Connect

For macOS

1. Open System Settings

2. Select Bluetooth

3. Turn Bluetooth ON

4. Locate Bubble 3.0 BT1 / BT2 / BT3

5. Click Connect

Step 5: Connection Confirmation

Once the keyboard is connected:

• The indicator light will stop blinking

• The keyboard will respond normally while typing

The keyboard is now ready to use.

Section C: Charging the Keyboard

To charge the keyboard:

1. Connect the keyboard to a 5V / 2A adapter using the USB to Type-C cable.

2. Allow the keyboard to charge fully.

3. Once fully charged, disconnect the cable.

Important Notes

• Always use the provided USB to Type-C cable for charging.

• Avoid charging with low-quality or incompatible adapters.

Section D: Troubleshooting Guide

Issue 1: Keyboard Not Appearing in Bluetooth List

Recommended Checks:

• Ensure the keyboard is in Bluetooth pairing mode

• Confirm the correct Bluetooth channel (BT1 / BT2 / BT3) is selected

• Restart Bluetooth on your device

• Restart the keyboard and try pairing again

Issue 2: Keyboard Connected but Not Typing

Recommended Checks:

• Remove the keyboard from the Bluetooth device list

• Restart your laptop or PC

• Reconnect the keyboard

• Ensure the keyboard is not connected to another device

Issue 3: Keyboard Not Charging

Recommended Checks:

• Use the original Type-C cable

• Use a 5V / 2A power adapter

• Inspect the charging port for dust or damage

Issue 4: Keyboard Entered Sleep Mode

The keyboard automatically enters sleep mode after 10 minutes of inactivity to conserve battery.

Solution:
Press any key to wake up the keyboard.

Issue 5: Resetting the Keyboard

If the keyboard is not functioning properly, perform a reset:

1. Slide the switch to 2.4 GHz mode

2. Press ESC + Q together for 3 seconds

3. Insert the USB receiver again to reconnect

Still Facing Issues?

If the issue persists after performing all troubleshooting steps, please Click here raise a support request.

Our support team will assist you further.