Xperia S

How to Update SONY XPERIA S with KitKat 4.4 Firmware – Guide

Woohoo! SONY XPERIA S users too can join the party when it comes to installing the latest Kitkat 4.4 firmware. Though there is no official update on by when there will be an official update for XPERIA S, but all thanks to the Cyanogen Mod team which has come up with an all new release of Kitkat 4.4 firmware. So let’s head over to the next step where we have summed up the detailed guide which will help you the latest firmware of Kit Kat in your device. This custom ROM firmware comes with all the features which are otherwise available in Kitkat Android OS which is rolled out for Nexus devices.

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Quick Pre Requisites:

  • All the data in your SONY Xperia S should be backed up with the help of below mentioned manual steps so as to make sure that just in case. Make sure that you are not creating the backup with the help of SONY PC Companion.

SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log – Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names

  • Enable the USB Debugging Mode in your computer from the path “Settings > Applications > Development > USB debugging” in your SONY XPERIA S.
  • Minimum battery life should be a minimum of 40% or else there is a risk of device getting turned Off in the middle of firmware update.
  • Since this one is the custom ROM firmware, you will need to make sure that you have rooted the device. To check on whether the device is rooted or not, you will have to check the same with the help of “Root Checker” app.

Disclaimer: We should not be held responsible or liable in any manner for any damage caused to the device which is very unlikely if you follow the instructions carefully mentioned in this article.

Now assuming that you are done with all the above mentioned steps, lets proceed on to check out on what is the procedure with which you can apply this update.

Procedure to Update SONY XPERIA S with KitKat 4.4 Firmware:

Download the KITKAT 4.4 Package from here to your computer. Once downloaded, place the same in your XPERIA S by connecting your phone to the computer using original USB cable.

  • Open the command prompt in your computer and enter the below mentioned command;

Flash boot boot.img

  • Now, turn ON the smartphone and boot the same into the recovery mode by pressing the Volume Up Key.
  • In recovery mode, create a Nandroid backup of the current ROM. Select “backup and restore > backup.” The current ROM will be saved on the SD card which you can restore anytime.
  • Up next you will need to perform a full wipe and select the option of “install zip from sd card” to select the option of “choose zip from sd card” to choose the KitKat 4.4 firmware package which has been placed in the device earlier. Please note that it will take around 5 -6 minutes for applying the update and once the update is applied successfully, the device will be rebooted.
  • Once the device is updated with successfully, disconnect the device from computer and check on whether your phone is updated with the latest firmware or not which can be done from the Settings option.

Note: If the device gets into the boot loop sequence or say gets stuck in the welcome screen, just long press the power button and re follow the above instructions so as to again follow the above mentioned instructions.

So there you go, you have now successfully applied the latest firmware update of Kitkat 4.4 firmware. Do let us know in the comments section just in case if you face any issues in the process of firmware update.

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4 Comments

4 Comments

  1. kenneth

    February 18, 2015 at 10:19 am

    hey good pm, meaning while typing on command prompt do i need to turn off my phone? then i will open it after tru recovery?

    • Pradeep Neela

      February 22, 2015 at 8:41 pm

      no, the phone needs to be connected to the computer with USB and then type in the commands in the command prompt

  2. Ankit Prajapati

    May 13, 2014 at 10:42 am

    Can I follow this procedure for Xperia SL also??
    And once followed, can I revert back to original 4.1.2??

  3. harold

    April 28, 2014 at 8:38 pm

    hey ty for the the great news.. i just want to know if the camera function would be/ still in a good function after the upgrade. ty

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