The MAC address of the Bluetooth module can be modified. The MAC address, also known as the hardware address or physical address, is composed of 6 groups of hexadecimal numbers, each separated by a colon (:). The MAC address of a Bluetooth device is usually randomly generated by the manufacturer during the production process and burned into the chip. It consists of two parts: the organizational unique identifier (OUI) and the local address (LLID).
How to modify the MAC address of the Bluetooth module
Use a special modification tool: The manufacturer can use a special modification tool to change the MAC address of the Bluetooth module. For example, this can be achieved by modifying the data stored in the chip.
Modify through software tools: For some types of Bluetooth modules, the MAC address can be modified through specific software tools. For example, for the ESP32 module, AT commands can be used to set and query the MAC address.
Use a third-party application: For Android devices, the MAC address of the Bluetooth module can be modified by installing an "Xposed module" such as "Bluetooth MAC Address Changer". The specific steps include installing the module, enabling the module, setting a new MAC address, and restarting the Bluetooth service.
