ok, there is small cable 54pin connector connected to the original 54pin both is same and can be installed on the ulf and bit ii, when i connect the ULF directly to the 54pin (without the small connecter) screen work fine, but if i connect it with that BIT II connector the screen comes black.

and for the 54pin setting is it same for all BMW cars i mean x5, 5 and 7 seres. if yes can you send me or tell me how to fix it.

sorry for my english.

Note : the connectore am talking about is on the german forum you post on the pictures with the BIT II kit