2013-07-14 06:55 AM
I have been having problems with the latest firmware version of xperia J - 11.2.A.0.31. The version is way too slow, slower than my older version. It even takes time to completely display my home and menu screen. So I want to downgrade the firmware 11.2.A.0.31 to 11.2.A.0.21 (my previous version). I would wish to get help as soon as possible.
2013-07-15 10:09 AM
Unfortunately you can not downgrade to previous version but if you are having problem with this phone software I recommend you to repair the phone software via Sony PC Companion:
Click on this link to get Sony PC companion:
Start PC companion, start "Support Zone", start "Update phone software" and click on "Repair".
Follow the on-screen instructions.