Why does the car USB only charge but not recognize the phone?
2 Answers
Car USB only charging but not recognizing the phone is caused by insufficient power between the car's USB port and the phone's interface. Below are the relevant details: USB car charger: Commonly referred to as a USB car charger. It leverages the universality of USB, which is widely used for various charging interfaces. When applied in cars, it converts the vehicle's 12V-DC and 24V-DC to the common DC-5V voltage for USB and other charging devices. Common specifications of USB car chargers: Output: 5V-DC-500mA; 5V-DC-700mA; 5V-DC-1000mA; 5V-DC-2000mA.
I've been thinking about the issue where a car USB only charges but doesn't recognize a phone is quite common. There are several common reasons: First, the problem could be with the data cable. If you're using a charging-only cable, it only conducts electricity but not data, so of course the phone won't be recognized. Second, the USB port itself might be dirty or dusty, blocking the signal. Third, the car's system might be too old and incompatible with your new phone. Fourth, the USB default setting on your phone might be set to charging mode and hasn't been changed. I've encountered this myself, and switching to a better quality data cable solved the problem. When cleaning the USB port, be careful not to damage the interface. Update your car's software, and don't skimp on accessories, otherwise, you risk having your navigation fail while driving.
