Galaxy S5 settings for hands free bluetooth...anyone?

As popular as the Galaxy S5 is, I can't believe that no one has used it with a hands free device in their car.  Is this phone just not capable of hands free after the screen locks or is it such an obvious thing to configure that no one is responding?  I really think there has to be a way to this.

Help!

Hi AnhBob, 

Thanks for reaching out. We apologize for the negative experience. What brand speaker are you attempting to use. Have you tried to unpair and re- pair the speaker? Have you attempted to place call from your S5 does sound come though the speaker? ^Jake  

Samsung Support

Jake I am using a Motorola Roadster 2 which says it is compatable with the S5.

I get audio through the Roadster, but once the screen locks on the S5, I cannot push the handsfree button the Roadster and start a voice call.  I cannot wake up the S5 with voice commands (either Hi Galaxy or OK Google).  Once the phone is locked the only way to make a call is to manually unlock the screen with whichever method had been selected (PIN, fingerprint, etc.).  It just seems not very "handsfree" if that is the normal operation (also not real safe when driving if one must manually pick up the phone, unlock the screen then make a handsfree call(.

Any ideas??

I was using hands free calling, even with the screen locked.  After the last FORCED update, and "Hi Galaxy" appeared on my phone, it no longer works with the screen locked.  If I unlock the screen, it works.  But, the voice no longer come over the car speakers... who would you like to call?

How do I remove Hi Galaxy and go back to the old system?  Yes, I deleted and re-added the blue tooth connection in my car.  Didn't help.

Check the settings, Device, Call, Call accessories, Outgoing call conditions. Make sure "Even when device locked" is selected.

Should do it.