I got one of these couple weeks ago and I couldn't get it to read the ecu in my leon fr tdi 150, it pairs with phone ok just can't connect to ecu.Having read earlier comments I'm guessing it's because I have a revo map that's probably blocking it.

I also read you have to clear your paired devices list so that the first and only thing it finds is the obd adapter.

AL
 
It probably is, I cant use my Bluetooth connector anymore after it being mapped. I thought it was me, but I have confirmation more drivers who went to the same mapper experience this issue.

Vagcom/vcds with a cable works fine though.