AC STAG USB FTDI Diagnostic Interface

downloaded software interfaced with car,it told me I needed updated software, downloaded that reconnected to car all worked perfectly, told me I have new ECU software to download and install .I will do this later when it's not freezing outside.Showed error codes of system voltage which I had already gathered as the car was sluggish first thing in the mornings once the winter came the battery is 10 years old.Forgot to reset service interval will do that later still exploring the software and its uses/abilities and mine. Can't fault it.may have a look at the bluetooth interface as I have downloaded the Stag app onto my phone and tablet