Yesterday, Japanese mobile phone maker Sony Mobile officially announced the availability of the Android 4.1.2 Jelly Bean OS upgrade for the owners of Xperia S, Xperia SL and Xperia acro S devices out there, but it seems that unofficial Jelly Bean software is also available for Xperia S.A pre-rooted Android Jelly Bean ROM (6.2.B.0.200) is now available for download for the smartphone, courtesy of Xda-Developers forum member DooMLoRD.
As XperiaBlog notes in a recent post, users interested in installing the software on their devices can do so via the ClockwordMod Recovery. Apparently, the custom ROM can be installed on devices with both locked and unlocked bootloaders.
Furthermore, it seems that the owners of Xperia SL smartphones can also grab the new ROM for their smartphones, should they want to do so. Given that this is unofficial software, users will be installing it at their own risk.