What to do if the 2020 Audi A4 USB port does not respond?

[DelRemington]

2020 Audi A4 USB port not responding is due to insufficient current and voltage or power adapter overload. Here is a detailed analysis of the specific reasons: 1. Insufficient current and voltage: The USB ports of the Audi A4 are located under the center armrest and in the storage compartment of the front center console. The USB ports in the car are designed for audio and image data transfer. In fact, the current of such ports is only 0.5A. If the current and voltage are insufficient, using the USB port to charge a phone may cause serious damage to the phone. 2. Power adapter overload: If a power adapter with a rated current of 0.5A is used to charge a phone with a rated input current of 1A, it is obvious that the input parameters of the load have exceeded the output capability of the power adapter. This is already an overload for the power adapter. At this time, the actual output current of the power adapter may not reach 1A, failing to meet the demand of the load and causing a drop in output voltage. This will increase the heat generation of the power adapter and may lead to damage to the power adapter.