Annoyance: Verizon S3 lock screen activated after phone calls

[Pete Banham]

I have a Galaxy S5 and am able to reproduce this issue every time. The lock screen occurs when connected to a Bluetooth headset (or car unit) and you end the call using the Bluetooth device. If you end the call via the "End" button directly on the phone the phone never locks. Now I'm trying to find where in settings this may be at. I haven't tried it with a wired headset yet so I can't say if it is limited to just Bluetooth devices or not.

Hi
Did you mange to find a fix for this please? I have exactly this issue in that it locks every time when the screen has turned off (but it has not been long enough to hit the lock timeout) AND the call is ended from the headset button (bluetooth or wired) but not if ended from the phone. I am sure the "keep screen on" app will work round the issue but I am often on calls for a long time and so this will kill my battery. Thanks Pete