Android phone can't find the bluetooth module

I try both Galaxy S3 and Sony Xperia S, can’t find the bluetooth module.
But my the bluetooth dongle in my PC can find the bluetooth module well.
does the problem is that the S3 use BT 4.0 ?
Will give up the bluetooth module.

@ andre.m - Have you tried logging out and back in? Seems double posting is affecting you more.

Sorry for the double posting.
Years ago, I forgot I have posted.
Sorry if affecting any.