I agree, i also thinks that Bt is always connected whithout connecting Bt, on a 1.6 i didnt solder bt, and it worked great.. sure it could be the lpc soldering but i have been resoldering it alot

, have to test removing bt tonight, my friend "Mr thinks he knows it all" keeps telling me that i have to connect bt, but i dont think so, i'we tested whithout bt but not at the same time as "d0 to ground" , so it might work .....