As said before is probably due to some android’s bt broadcomm module bug that does not allow to find Class of device code 0x00.
There is a android application developed for that that you can find here: zornsoftware.codenature.info/blo … hones.html . It worked for some people but must warn that it did no work on my LG optimus one with v2.3.3 android version but might work for others. Hopefully the developer will find a work arround…So far I got a useless shield in my hands for the use i intended to give.