In March 2013, AT&T announced the continuous Jelly Bean updates and extended it to the Sony Xperia TL. Sony Xperia T LT30p hasn't yet received official update of Android 4.2 Jelly Bean, so developers from Cyanogenmod qualify the device to get the latest Jelly Bean OS.

AT&T Sony Xperia TL
The update for this device announced in March includes the following changes:

  • Camera App Improvements: Enhancement for Superior Auto mode and new HDR capabilities with three photos output.
  • Data Usage: Users can now set data usage counter per month to save from overcharging.
  • SMS/MMS Notifications: Full text and images from SMS and MMS respectively are now included in the notifications window.

To update, go to Settings > About > Software Update. Make sure to have an active Wi-Fi Internet connection.

How to Update Your Sony Xperia T LT30P with Cyanogenmod 10.1

Xperia T LT30P can now get Android 4.2.2 Jelly Bean features using CM10.1 custom ROM. Not only it is bloatware but also includes several tricks you can use for better experience with your phone.

Warning: This is a custom ROM and designed for Sony Xperia T only. Developers will not be held liable for any damages that may occur on your device. Do this at your own risk.

Requirements:

1. Create a backup of all your personal information, settings, and data files before flashing this ROM.

2. Xperia T must have at least 80 per cent battery level to avoid power interruption.

3. USB drivers for Xperia T must be installed on your computer. Download the USB drivers here.

4. Enable the USB debugging mode.

5. Your Xperia T must be rooted. Here is the Rooting Guide for Xperia T.

6. Install ClockworkMod Recovery on your Sony Xperia T.

7. Download the CM10.1 Android 4.2.2 for Xperia T and Google Apps package.

Installation Procedure

1. Connect the device to the computer using a USB cable.

2. Copy the downloaded files from the computer to the SD card of Xperia T.

3. Disconnect the device and turn it off.

4. Reboot into Recovery mode. To do this, reboot your Xperia T while pressing the Volume down during boot.

5. Use the Volume keys and the Power button to navigate and select in the Recovery mode.

6. Perform a Nandroid backup of your current ROM. This can be used to restore the system back in case you wanted to or something goes wrong.

7. Perform "wipe data/factory reset" and select "yes" to confirm.

8. Perform "wipe cache partition" and "wipe Dalvik cach" under "advance" option.

9. Select "install zip from SD card" and choose the CM10.1 firmware you have copied on your phone. Do the same for Google Apps package.

10. After the installation, go back and select "reboot system now". The phone will automatically restart.

11. Be patient and let the device boot for 5 minutes. This is normal for first time boot.

Congratulations! You now Android 4.2.2 Jelly Bean on your Sony Xperia T using CM10.1 custom ROM.

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