Xperia p not updating to jelly bean
We (Team Android.com) or the developers are not to be held responsible if you damage or brick your device.
Officially there is no word on by when there will be an official firmware of Jellybean 4.2.1 built but all thanks to the custom ROM firmware developers who are working hard for coming out with this firmware update.
Make a backup for just in case, you never know when anything might go wrong.
See below for some tips on how to backup data: Samsung users can also back up data using Samsung KIES.
However, you can always point out the bugs for the developer to fix them.
You will need to connect your Android phone with the computer.
For that, please make sure you have installed the USB drivers for Sony Xperia T properly. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of.