Share your experience!
I was listening to music on walkman. My phone was locked. I pressed earphone button to pause song and again I pressed it to play. After 1/2 or 1 min I did the same and now my phone's display is gone!! I tried power button, it didn't work. Again I pressed the earphone button and then I got the display now. It seemed that my phone was restarted!!
I repeated the procedure 3 times and got the same result. Those who have updated your phone, try this and please inform me if you have the same problem......
Feeling very disappointed. I didn't waited for this buggy update 
Sounds a bit odd. Is it a Sony original headset you are using or do you use a 3rd party headset?
Have you tried with different headsets and experienced the same behavior?
Yes, it sounds odd. But, it truly happens. I'm using original earphone. And for you kind information, there wasn't any problem before updating.....
Today morning, after restarting my phone I openned Walkman and 5-8 seconds later display became black and restarted automatically. It happened 3 times then.
About every hour I'm experiencing new problems in this new version. It's a shame for a branded mobile phone like SONY. Everybody is talking about problems. I'm totally disappointed.............