How to Repair a Broken Car USB?
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The car USB port may be broken due to internal wire disconnection or solder joint detachment. It is recommended to go to a 4S shop or an auto repair shop for repair or replacement. Below is an introduction to car USB repair: 1. If the original car USB is damaged, the entire unit needs to be replaced, requiring the connection wires to be disconnected. Purchase a new interface and connect it. If it's a replacement USB, simply changing the interface will suffice. 2. USB uses a four-wire cable, with two wires serving as serial channels for data transmission and the other two providing power to downstream devices. For any successfully connected and mutually recognized peripheral, data will be transmitted at the highest rate supported by both devices. 3. The USB bus will automatically switch from high speed to low speed among compatible transmission modes based on peripheral conditions and lock at the appropriate rate. USB is a token-based bus, similar to token ring networks or FDDI token-based buses. 4. The USB host controller broadcasts tokens, and devices on the bus check if the address in the token matches their own, responding by receiving or sending data to the host. USB manages bus power by supporting suspend/resume operations. The USB system uses a tiered star topology, consisting of three basic components: the host, the hub, and functional devices.