Why can't the USB flash drive be read by the car's USB port?
2 Answers
USB flash drive cannot be read by the car's USB port because the file format being read is incorrect. For example: some car systems only read MP4 or AVI files, while formats like RM or 3GP are not supported or cannot be read. Advantages of car USB ports: The USB port is a type of vehicle transmission line, featuring fast transmission speed, ease of use, support for hot-plugging, flexible connection, and independent power supply. It is generally a universal interface for plugging in USB devices such as USB flash drives and MP3 players. Uses of car USB ports: Car USB ports are designed for transmitting audio data. The current of car USB ports can be either 5V/2.1A or 5V/0.5A. Many mobile phones require an input current of 5V/1A, so a car USB port with 5V/2.1A can be used normally.
I've encountered the issue of car USB not recognizing flash drives several times, and there are several common reasons. The file format might be too advanced, as many car systems can only recognize FAT32 formatted flash drives and don't support NTFS or exFAT. The solution is to reformat the flash drive to FAT32 on a computer. The flash drive's interface might be loose or dirty, so try unplugging and replugging it a few times or clean it with a cotton swab to ensure good contact. Capacity is also an issue, as some older cars can't recognize large-capacity flash drives. Try using a smaller one or splitting the files. Lastly, the car's software might be outdated. Visit a 4S shop or download an update package to refresh the system. Don't forget to back up the flash drive data, as formatting and cleaning pose no risks. If the problem persists, the flash drive might be faulty. Borrow a friend's to identify the issue.
