Share your experience!
Hi Sony,
My phone basic functionality was not working well, I mean calling functionality,
Not only bug in calling functionality, there are so many bugs.
Unable to call quickly its taking 2-3 min to call and even some time we dont get that the call was done and Some times it was swithching off.
like this there are so many please give bug free update ASAP.
If possible revert back the update to ICS stable version.
Regards,
Gokul
Try to start your phone in safe mode. Press and hold the power off option and you'll get the option to restart the phone in safe mode.
If the phone works better in safe mode, this can be caused by some 3rd party apps. Uninstall any task killer/manager and antivirus etc.
If the problem persists in safe mode I suggest that you repair the phone software using PCC:
http://www.sonymobile.com/update
In PC Companion, click start under Support Zone > start under Update phone > select Repair phone (in blue text).
Then follow the instructions given to you in the program.
which FW are u now .. aft ur upgrade have u done factory reset .. if not now follow this
1. factory reset
2. install the FW with SUS
3. factory reset
now check if ur device lags 
I repaired my phone even tough the same issue..
On factory reset what all the content i may lost?
everything .. including contacts, msgs, settings etc ,, if u uncheck format External memory, then u may not loose wat u have in ur sd card (11gb) ..
my advice is backup ur contacts, then backup ur sd card datas then do a factory reset ..
I will check that and come back to tiill there is issue thanks Jack. I need to do factory resent after update or befor it
now do factory reset .. then install the update with SUS .. then again do factory reset ..
SUS?
I will use PC Companion
ok no problem .. use it .. aft the update when u boot ur device pls leave it to get it settle down ,, don touch it for few mins 