Procedure to Update SONY Xperia U with Jellybean 4.1.2 Firmware:
- Download Xperia U JB Firmware Update package from here to your computer. Once downloaded, connect your phone to the computer with the help of original USB cable and place the same in your device.
- Place the downloaded zip file in your phone and disconnect the device from computer. Now, open ROM Manager app and enter your SONY Xperia U in the recovery mode by selecting the appropriate option.
- In recovery mode, select “install from zip” to select the Xperia U JB Firmware Update package which you have placed in the device. Once you have selected the same, wait for around 4 -5 minutes for the firmware update process to get completed. As soon as it gets finished, you will see the message as “install from sd card complete”.
- Select “go back” to select the option of “reboot system now” for rebooting the device in the normal mode.
Note: If the device gets into the boot loop sequence or say gets stuck in the welcome screen, just press the Volume Up + Volume Down + Power Button to reboot and re follow the above instructions.
So there you go, you have successfully learnt on how to upgrade the Xperia U with the latest Jellybean firmware. Do let us know in the comments section if you face any issues in the process of firmware update / after the firmware update.
