I have 4 bluetooth 3031 renaming children that are faulty and can't find their names when powered up. I dumped the fw.xuv of 1 usable one and burned the 4 that were faulty. the other 4 results were found when powered up, but they have the same mac address and still can't be renamed with qcc-tool. There is no way to fix it. Please help me. thanks a lot