How to Update Sony Xperia V LT25i to Official Android 4.1.2 Jelly Bean

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Sony Xperia V LT25i owners can now update their device to XXDMB1 Android 4.1.2 Jelly Bean official firmware. This new build brings the latest Jelly Bean stock firmware and was rolled out OTA. You can update your Xperia V LT25i OTA – or if you don’t see this firmware, you can even update always using our article below. You can install Android 4.1.2 Jelly Bean on Sony Xperia V LT25i manually, using the tutorial given below.

As you proceed with this article, we will guide you through the entire process involved in how to update Sony Xperia V LT25i to Official Android 4.1.2 Jelly Bean with detailed steps. Just ensure that you follow the pre-requisites section fully, as it will help you backup your Android device entirely.

Sony Xperia V LT25i- How to Update Sony Xperia V LT25i to Official Android 4.1.2 Jelly Bean

Warning: Neither we nor the developer will hold any responsibility if you damage or brick your phone in the process of following this article. Therefore, please proceed at your own risk.


Measures to take before updating your device:

Step 1: You should fully backup your Android device before updating it. Backup all your SMS, Backup/Export Contacts, Backup APN settings. You can take help from our article on Tutorial for creating backup of Android device without root access.

Step 2: You should Backup all apps on your device, unrooted users can follow this method procedure to backup apps. If you have already rooted your device then use Titanium to Backup and restore apps and cache data.

Step 3: You should enable USB debugging on your device, to activate USB Debug go to “Settings>Developer options” and check the USB debug option box. Problem enabling USB Debugging you can follow article on How to enable USB debugging on Jelly Bean, Ice Cream Sandwich and Gingerbread.

Step 4: There should be 50% or more amount of battery juice on your device. To know how much charge your device is having you can use our tutorial on how to get battery percentage on Status bar.

Step 5: You should disable security apps and programs like Antivirus and Firewall on your Android device as they may interrupt the procedure.

Assuring that you have followed all the above mentioned steps, you can proceed further. If there is something which worries you, let us know we are always here for you.

Download Flash Tool and FTF of Official Android 4.1.2 Jelly Bean Firmware (9.1.A.0.490) from here to your computer.

How to Update Sony Xperia V LT25i to Official Android 4.1.2 Jelly Bean:

Step 1: First of all, open the “.exe” file of the Flash Tool from “C:\Flastool” or from your preferred installation directory.

Step 2: When the Flash Tool has opened up, just click on the black thunder button that is present on the top left sidebar of the tool.

Step 3: Now, select “Flashmode” from the pop-up window and then click on the “OK” button.

Step 4: Next, you will be asked to select the source folder of the firmware you are about to flash, this way you won’t need to select the folder which contains the “.ftf” file of this Android 4.1.2 firmware and then you have to click on “OK”.

Step 5: Now, just connect your phone to the PC using the original USB cable. To do so, turn off your Xperia V, connect it to the PC while holding the “Volume Down” button on the phone.

Step 6: The installation process will begin and complete in a few minutes. Just reboot your device when the installation process completes.

Great! You have successfully updated your Sony Xperia V LT25i to official Android 4.1.2 Jelly Bean. Feel free to share with us if you have any problems, we are for your help always.

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