I cannot connect my BMV 712 and MPPT to my phone. It fails at 80% and asks me for the PIN. 000000 no longer works and the PUK code isn’t accessible due to how the devices are mounted.ect. It won't work on my Iphone. The device won't even show up on my Bluetooth. It shows up on my wife's Android but fails as well. Is it possible to get the PUK code with just the serial number?