New to Phantom-installing zenmuse H32D with ugrade board with PMUv2 etc. Not clear about the firmware upgrade process. Mac user doing this on PC. Is this done through the main USB cable -or as mentioned in the Naza notes it's saying connect micro-USB?? Is that one on the PMUv2 or what. Is there a good youtube or other link describing the firmware upgrade and assistant software set up. Thanks in advance from the newbie.