Technically they're already linked - it's an android, it can query the bluetooth mac address, the wifi mac address, the hostname of the device and the serial number / imei / esn of the device.
There's no "unlinking" it unless you manually modify the serial numbers on the device, which is possible, if you have qualcomm diagnostic tools (QPST/QXDM) and are able to communicate to the modem softband directly.
There's no "unlinking" it unless you manually modify the serial numbers on the device, which is possible, if you have qualcomm diagnostic tools (QPST/QXDM) and are able to communicate to the modem softband directly.