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Why can't the car read the USB flash drive when starting?

2 Answers

RicardoMarie

07/29/25 8:26am

USB flash drive may be incompatible, possibly due to excessive capacity. Generally, car USB ports are compatible with MP3 format, so pay attention to the music format. The USB flash drive needs to be in FAT32 format. If it's not in this format, you can reformat it to FAT32. The USB flash drive should have a single partition without any hidden partitions (USB drives used as bootable drives have hidden partitions). Below is detailed information about USB flash drives: 1. Function: The main purpose of a USB flash drive is to store data. Enthusiasts and merchants have developed more functions for USB flash drives: encrypted USB drives, bootable USB drives, antivirus USB drives, temperature-measuring USB drives, and music USB drives, etc. Car playback devices are different from computers, and some have poor compatibility. Typically, they can only recognize one or a few types of controllers, so you can try several. 2. Format: Generally, devices other than computers support USB flash drives in FAT32 format. If the USB flash drive is not in this format, you can format it to FAT32 and try using it on the TV. USB flash drives used as bootable drives usually have two partitions and are not recognized by devices other than computers. They can be restored to normal drives before use.

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VanTalia

08/12/25 5:19am

I recently encountered the issue of a USB drive not being recognized in the car, which was quite frustrating. First, try unplugging and replugging the USB drive to check for poor contact. If that doesn't work, plug the USB drive into a computer to see if it can be detected—if the computer reads it, the USB drive is fine. Sometimes, the car's infotainment system experiences voltage instability during startup, so try turning off and restarting the vehicle. Also, ensure the USB drive capacity isn't too large; older car systems may struggle with drives over 32GB. Format is crucial too—many cars only recognize FAT32 format. If the USB drive is NTFS or exFAT, reformat it on a computer. Overheating can also affect performance; in hot summer weather, unplug the drive to cool it down before reinserting. Avoid nesting music files more than five folders deep, as car systems have limited directory-reading capabilities. If none of these methods work, the car's USB module might be faulty, and it's advisable to visit a 4S shop to check the interface circuit.

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