Share your experience!
HI There,
After i update my Xperia z1s to kit kat 4.4.2 version my head set problem started after someday.
The problem is
When I unplug my headset from xperia z1s, it stays connected and i got notification 'please unplug your headphone to get sound from speaker'.
I found many articles for this headset bug.
http://www.xperiablog.net/2013/09/22/xperia-z1-suffering-with-headset-bug/
Can any one have this issue?
If you have any solution please help.
Thanks
Never had that Problem but ill try to help you
1. Did you put the phone in water? If not ignore this
2. Restart your phone > Plug in the headset > unplug headset . Does it still happens?
3. Go into safe Mode and does that happen?
I hope i helped 
Also,try to clear data for smart connect under settings-apps-all.
Thanks you to all who tries to help me. I did a restore of my phone. The restoreing the phone from my previous back up worked. I did the restore the same day i asked question. But forget to post my response. Sorry!