You got it all mixed... I think I need to make a video of this but first I'll try with text
So, you get your nice and shiny SBH-52:
1.- Download the Smart Connect application from the play store.
2.- Download the SBH-52 application also from play store, both applications are from sony.
3.- Look for "Sound About" in the play store, there is the free and trial version I think and there is also the paid version, paid version is needed since it includes the option that we are interested in.
4.- Pair the SBH-52 via NFC with the F886 or ZX1, with this, all the sound will be redirected towards the SBH-52, of course we don't want this.
5.- Open the Sound About application, then on "Media Audio" Select "Wired Headphones", this will force all audio to go towards the wired headphones, regardless if the SBH-52 is paired or not, as I said before, even if you have the PHA-2 DAC, it works by sending the audio towards the DAC and the SBH-52 is only left with the bluetooth buttons capabilities.
6.- If you don't use hi-res music, use poweramp, which includes an extended set of controls for the bluetooth buttons (like advancing folder with double click), I personally use it far more than the Walkman application, which is now reserved only for hi-res music (Now if they expanded their SBH-52 pluggins to include full Walkman control, ala hi-md... this player would become officially the king of the DAPs).
Notes:
-NO ROOT WHATSOEVER REQUIRED.
-You can pair the SBH-52 to other device, however, if the F886 or the ZX1 isn't set as master, then album and track information isn't shown on screen. (Yes... you can have it paired to both F886/ZX1 and answer calls with it, or at least I tried that function with a RAZRi (xt890) phone).
-It is needed the application of Smart Connect to show any kind of text in the screen, in fact, when on master, the Smart Connect application shows "SBH-52 Connected" whilst at the same time on the second paired device it simply shows "SBH-52 Disconnected", but bluetooth connection is still on, just not the advanced features of the SBH-52.
-The SBH-20 should also work, but of course it doesn't have screen (which at the same time may not need the Smart Application at all)
-The sound hardware of F886 or ZX1 (or PHA-2) is used with this method, bluetooth audio is discarded by the Sound About application totally.
-Volume control on the SBH-52 doesn't work, however volume can still be controlled by either the physical buttons of the device or the volume knob of the PHA-2, this allows you to don't see the screen at all, or at least that's my case.
-Battery consumption is nill, in both the device and the SBH-52, I have keept them for one week straight without even turning them off, with the PHA-2 however is another story... but that's a well known side effect of using this DAC.
Happy pairing.