L8 Support

1. When the device is connected to the car, the L8 light will turn blue.
2. Next, select the communication icon.
3. Then click on mobile device.
4. First, delete the previously linked devices displayed in the car, then click on new device.
5. Under functions, click on phone and audio (via Bluetooth or Apple CarPlay). The screen will show that it is searching for devices. Then select the BM-XXXX device to connect.
6. Finally, click on use Apple CarPlay to log into the L8 system.

You can also refer to the video as below: https://drive.google.com/file/d/1tvZOdOWi7Ruwi_GWDYQT2jhdc7aUlKGF/view?usp=sharing

The issue is related to the display settings of the original CarPlay system in your BMW car. BMW models produced before 2020 have a restriction on the CarPlay display area, which results in the half-screen view. To enable full-screen CarPlay, you will need to activate the full-screen display using a BMW certificate.

We recommend that you search online for service providers who offer full-screen activation for BMW vehicles. They can assist in unlocking the full-screen feature for you.

To improve system compatibility and stability, please follow these steps to update your L8 device:

1. Connect the L8 to the Internet (for example, via Wi-Fi).
   
2. Go to Settings > Protocol Version.
   
3. Tap “Protocol Version” five times quickly.
   
4. Select “Update xqcarplay Protocol” and wait until it shows “xqcarplay update success.”
   
5. Unplug and replug the box, then reconnect it to your car as usual.
   

That’s it! Your L8 protocol is now up to date.

No, this is not a defect.

BMW / MINI factory systems use wireless CarPlay protocols, and the L8 also transmits audio and video wirelessly to the car display.

Because wireless transmission is involved, a slight delay between sound and image can sometimes occur. This is a common technical limitation of wireless streaming.

Unlike a standalone device such as a smartphone or tablet, the L8 needs to send data to another screen (your car display), which inevitably causes a small amount of signal loss or delay.

However, you can reduce the delay through the audio adjustment settings.

How to Adjust Audio Delay

On the L8 device, go to:

Settings → Audio Track Adjustment

Recommended Adjustment Values

Please set the value based on the delay you notice:

• About 1 second delay → set 600 ms
  
• About 1.5 seconds delay → set 800 ms
  
• About 2 seconds delay → set 1000 ms
  

The adjustable range is 0 – 1200 ms, so you can fine-tune according to your perception.

Important

After changing the value, you must unplug and reconnect the L8 box for the new setting to take effect.

If you do not reconnect the device, the adjustment will not be applied.

Note:

Audio adjustment can improve synchronization, but due to the nature of wireless transmission, it cannot be completely eliminated.

If the L8 starts normally but cannot access the internet, in most cases the issue is related to compatibility between the L8 and the smartphone’s hotspot (tethering) settings.

■ If You Are Using an iPhone

Please try the following settings:

1. Change the Personal Hotspot password to
   
   “66666666” (eight 6s)
   
2. Turn “Maximize Compatibility” ON
   
3. After changing the settings, reconnect the L8 to the hotspot
   

These steps resolve the issue in many cases.

■ If You Are Using an Android Phone

In your phone’s Hotspot / Tethering settings:

• Change the Security Type to WPA2
  

Then try reconnecting the L8 again.

■ If It Still Cannot Connect

Please send a short video showing the issue to our support email:

📩 support@linkifun.com

After reviewing the video, our support team will contact you and, if necessary, provide the latest firmware update instructions.