The EXR Team of coders are claiming that they have a leaked Android 4.3 ROM for the Xperia TX (LT29i) relating to build version 9.2.A.1.131. Up until now we have seen no certified Android 4.3 firmware from the PTCRB website, but this build number would be even ahead of what we expect to arrive for the Xperia T and Xperia V in the form of build number 9.2.A.0.278.
Users are reporting that the ROM works quite smoothly and includes Sony’s Smart Social camera and Xperia Themes amongst other improvements as seen with the Xperia SP and Xperia T leaked firmware earlier in the week. We don’t know the legitimacy of the ROM nor do we know whether this is a real official ROM that has been leaked or cooked from other sources, but if you want to give it a try hit the source link below. Do note that you’ll need a handset with an unlocked bootloader.
Thanks black_phantom and @vphuong99!