TABLE OF CONTENTS
1.Troubleshooting Guide
Keyboard not connecting
- Ensure the keyboard is powered ON.
- Verify the correct connection mode (Bluetooth or 2.4GHz).
- Reinsert the USB receiver.
- Restart the keyboard.
- Remove the Bluetooth pairing and reconnect.
Bluetooth pairing fails
- Hold the Bluetooth key until the LED flashes.
- Delete previous pairing records from the device.
- Keep the keyboard within 10 meters.
- Try pairing again.
USB receiver not working
- Connect the receiver to another USB port.
- Restart the computer.
- Ensure 2.4GHz mode is selected.
Keyboard not responding
- Recharge the battery.
- Turn the keyboard OFF and ON again.
- Reconnect the wireless connection.
Connection drops frequently
- Stay within the recommended wireless range.
- Avoid interference from Wi-Fi routers and other wireless devices.
- Ensure the battery has sufficient charge.
Keyboard enters sleep mode
This is normal.
Press any key to wake the keyboard.
Frequently Asked Questions (FAQs)
Q1. Does Bubble 4.0 require software installation?
No. It is completely Plug & Play.
Q2. Can I connect multiple devices?
Yes.
Bubble 4.0 supports 3 Bluetooth devices plus 1 device via the 2.4GHz USB receiver, allowing quick switching between them.
Q3. Can I use it with MacBook?
Yes.
It supports macOS through Bluetooth.
Q4. Can I use it with Android phones?
Yes.
Any Android device with Bluetooth support is compatible.
Q5. Does it work with iPhone?
Yes.
It connects to supported iPhones via Bluetooth.
Q6. What is the wireless range?
The recommended operating range is up to 10 meters in open space.
Q7. Does the keyboard have a rechargeable battery?
Yes.
Bubble 4.0 features a built-in rechargeable battery and charges through a USB Type-C port.
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