After many hours triyng to setup a new unit smh10b with my old one, I realized that when I Disconnect the BT its not happening. The new unit, after going trough the process to pair with one of old ones, says " unavailable. Try later" When I turn one the old one, doesn't matter if I hard reset, actors reset or configure to forget the old connection, it's persistent there. How can I make my current all 3 units forget all they know about pairing and really star from factory ? I.m using the latest firmware, 4.1.1.1 Thank you