Share your experience!
I have xperia j but the touch screen hang many times a day, i cant pick my calls or i am unable to draw a pattens or swipe the screen. I use my phone without memory card and I also upgrade my phone software, but the problem is the same...very bad experience with Sony..
Try reset setting your phone and if the problem still happen, try to take off the battery and place it back into your phone.
repair your phone with SUS
Update Service (SUS)
http://www.sonymobile.com/gb/tools/update-service/
http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe
http://software.sonymobile.com/install_packs/Update_Service_Setup-2.12.12.41.exe
Alternatives on How to backup Xperias
http://talk.sonymobile.com/thread/36355
is Sony spying on users in this forum?
http://talk.sonymobile.com/thread/60197
Don't forget to mark the Correct Answers & Helpful Answers
UNRELATED topic, if you have some time please check this thread
mistake at minimization of walkman and change of orientation of the screen, a sound hangs some milliseconds.
I was also facing the same problem with my sony xperia J...But now I am so happy that I solved the problem...Please go to the link below...This will obviously solve your problem...
http://forum.xda-developers.com/showthread.php?t=2068082
Please reply me if this is helpfull...
Well here part of problem was solved upgrade (11.0.A.7.5)
At last someone came with a solution not just complaining...thank you Jithin 191 love your post 
Hello,
I have the latest update in my xperia J which is 11.0.A.7.5 but the issue of the phone hanging still persist. it very annoying? is Sony aware of this issue and if yes is there anything sony is doing to solve this ?
The problem of touch screen hang still persist after the latest update. I have to power off and the again power on everytime when this happens, only then it works normally until the screen hangs again ..
Its there a solution for this ?
Jithin 191,
I have downloaded the apk file in my PC and saved it in the internal storage of the phone. I am not sure how to install this ?