Recent reports from the Netherland say that Sony Mobile has begun rolling out Android 4.1.2 to Sony Xperia T devices. Because it’s not an official announcement we can not confirm at this point all we know so far is that the new firmware build should be version 9.1.A.0.489.
If you have an Xperia T you should try giving a manual check to see if its available in your area other countries could get the update as well. We are expecting word from Sony about Xperia T and Xperia TX, TL firmware upgrade. Meanwhile if you managed to pull it onto your phone please let us know in the comment section down below.