Sony Mobile has announced that it has released the Android 4.1.2 Jelly Bean alpha ROM for the Xperia T (LT30p), continuing its tradition of releasing alpha & beta ROMs for upcoming firmware updates. As with any pre-release firmware, this Jelly Bean ROM is only meant for those who want to see what one can expect with the latest update. In saying that, Sony confirmed that the alpha ROM does not contain the final planned Jelly Bean UI.
A number of features are disabled including the ability to make a call, Google Mobile Services (GMS) apps, Wi-Fi, Bluetooth, NFC and FM radio. You will only be able to try the Jelly Bean alpha ROM if you have an unlocked Xperia T with unlocked bootloader. You can install this update by using Sony Mobile’s flash tool. Further details are included here.