The reasons for the black screen when using QQ Music on BMW CarPlay on Pacific Automotive Network: 1. Car hardware failure or system confusion; 2. There is a problem with the cable on the back of the central control display, and the connection line buckle is detached or loose. Causes the large car screen to fail; 3. The car's power supply voltage is unstable.

The reasons why there is no sound in BMW carplay navigation:

1. The audio output of the central control is not switched to carplay;

2. The audio transmission line is faulty;

3. Audio contact ablation or coil failure;

4. The audio in the central control is set to silent mode.

When the car owner uses carplay, if the navigation function can play normally, it means that the vehicle and the mobile phone have been connected normally, and the vehicle's audio function is also normal. At this time, the car owner found that there was no sound when playing music, which may be caused by the following reasons.

1. The car owner has not turned on the volume of the music player, or the music in the music player has been paused. The car owner needs to open the music player, such as QQ Music, NetEase Cloud Music, and transfer the music inside the APP. The volume can be adjusted.

2. There may be a problem with the mobile phone network. Generally, some car owners may use wireless data when using music players. If the current network is not good, or the mobile phone is in arrears, the wireless network will not be available, and the music player will not be able to play music online.

(Pictures/Text/Photos: Pacific Automotive Network Question and Answer Calling the Beast)