Share your experience!
Hi friends!
My Xperia S is running really slowly and with lots of lags and hangings these days. Actually, when I turn on the phone, every thing is OK and smooth. But after a day or two, the problem starts and every thing function as slowly as a deadly hanging. As I have to turn the phone off and on to fix the issue temporarily... and if I dont do it, the phone itself will do it and reboot! and the story will be repeated again. 
note1 : I have installed the the Home Launcher of JB update, downloaded from the net, manually on my ICS phone. Can it be the reason of this mis-functioning?
note2 : The problem starts, when the RAM gets full. For example, GO Task Manager app shows 560 Mb full of 625, while the running apps are less than 450 Mb.
note3 : Does a factory reset help?? And if I factory reset my phone, does the android version go back to the initial 2.3.7 or remains 4.0.4 !!??
PLZ PLZ PLZ PLZ PLZ help !
I'm really depressed and confused! 
just repair your phone with SUS or PCC, also if you have a lot of sms/mms and call logs stored it will slow down your phone, uninstall any taskillers, task managers, ram apps, battery apps, antivirus
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
Bridge (for Mac)
Alternatives on How to backup Xperias
http://talk.sonymobile.com/thread/36355
Don't forget to mark the Correct Answers & Helpful Answers
I deleted the things you said (call logs, antivirus,...).
Sorry! I dont know how SUS can help me?:smileyblush: 'cause there is currently no new update for my phone.
What about a factory reset? Does it help?
the info is above (SUS = Sony Update Service)