Posted on Mar 22 2014 - 12:40am by Anurag Kumar

Sony has officially rolled Xperia Z1 android 4.4.2 14.3.A.0.681 firmware update two days back and same the build number is also spotted on Xperia Z Ultra and Xperia Z1 Compact. On 14.3.A.0.681 firmware update, new native features of Android 4.4.2 KitKat are spotted along with some Sony exclusive features like answering machine option in phone app, new Xperia stock themes and wallpapers, new boot animation, new developer settings etc.

Now as 14.3.A.0.681 firmware update has arrived, many users are finding a way to root it, unfortunately just like Xperia Z1 Android 4.3 update there is no direct way of rooting Xperia Z1 on 14.3.A.0.681 firmware, you need to downgrade to previous versions or already have a rooted firmware. Let’s see how you can Root Xperia Z1 14.3.A.0.681 firmware using detailed guide by XDA dev [NUT].

How to Root Xperia Z1 14.3.A.0.681 firmware ?

Below mentioned guide supported for both locked as well as unlocked bootloader.


  1. Latest version of Xperia Flash Tool, download flashtool-
  2. Xperia Z Dual Recovery version 2.7.90 or any new version. Get it here.
  3. You must be on a rooted Xperia Z1 firmware i.e. 14.2.A.0.290 or 14.2.A.1.136. If you are not then Follow this guide to root 14.2.A.0.290 and this guide to root 14.2.A.1.136 firmware. IT IS MUST.

What is there below ?

  • SuperSU integration in system – Full Root access.
  • init.d support. Don’t know what it is, Read this.

Considering you are already on a rooted Xperia Z1 firmware i.e. 14.2.A.0.290 or 14.2.A.1.136 firmware, now proceed to update Xperia Z1 on 14.3.A.0.681 firmware KitKat and root it.

  • Download the mentioned files for your concerned device.

For C6902

Download  and C6902_14.3.A.0.681_Stripped.ftf

For C6903

Download  and C6903_14.3.A.0.681_Stripped.ftf

In below steps “XX” denotes 02 or 03 as per your device respectively. Use TWRP recovery if possible everywhere below.

  • Save on external SDCard1
  • Now put C69XX_14.3.A.0.681_Stripped.ftf file inside Flashtool/firmwares folder on your PC.
  • Do make a backup of your whole device using recovery and do backup contents of SD card and internal memory.
  • Flash in recovery ( TWRP ).

NOTEDo not reboot now. Navigate to main menu > reboot > power off.

  • Flash C69XX_14.3.A.0.681_Stripped.ftf file on your Xperia Z1 using Flashtool.
  • Reboot to system.

As usual first reboot is slow and an soon you see Blue KitKat animation, you will android apps getting optimized. Cheers, now your have got Root on Xperia Z1 14.3.A.0.681 firmware.

Root Xperia Z1 14.3.A.0.681 firmware

Deodex zip pack of Xperia Z1 14.3.A.0.681 firmware will soon be posted. We advise all Xperia Z1 users to see the source thread by developer to rectify any doubts if you have on above mentioned guide for better clarification of technical stuffs. Do not mirror any files without developer’s permission.

If you want to revert back to stock Xperia Z1 14.3.A.0.681 firmware, then follow the below link for the ftfs and guide to flash it.

Xperia Z1 14.3.A.0.681 firmware KitKat Android 4.4.2 update rolling

[ Source – XDA dev NUT ]

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21 Comments so far. Feel free to join this conversation.

  1. Prasanna March 22, 2014 at 1:09 am - Reply

    Actually mine is xperia ZL, Whether this flash can be applied on any xperia device or only on z-series devices ?

  2. Prasanna March 22, 2014 at 1:38 am - Reply

    Yes I know it man but is n’t possible to install in other devices ?

  3. Alex March 22, 2014 at 2:08 am - Reply

    Please for Xperia Z1 (C6906)

  4. leo March 22, 2014 at 2:19 am - Reply

    How about z ultra? Please sir, I want to root my z ultra 4.4.2 kitkat

  5. TheFamilyMan March 22, 2014 at 10:05 am - Reply

    Yes, I’ve been waiting to root my XZU until I received KitKat. Also a side note, I think it sucks that we’re no longer able to use our microSDXC cards as they were intended to! We’re left using the cheesy File Commander instead of Root Explorer – why? Yes I know this is where Google has been heading for a long time and yes I know AFTER we root our devices we’ll be able to employ Root Explorer just as we used to. But it still didn’t make it right!

    Finally, it seems to me that the XZU hardly receives any kind of attention it deserves – were always reading about OTHER Xperia devices can’t we please see more articles about our favorite device too. I know is personally appreciate reading more about the device I own on a daily basis and I’m sure I’m not alone wondering why we haven’t this far.

    • Anurag Kumar March 22, 2014 at 10:29 am - Reply

      Yes Google did screw up with SD card thing on KitKat but interestingly it is working fine on Nexus devices issue is only with OEM devices on KitKat.

      Yes I agree ZU is a wonderful device, will take care of your concern from now onwards 🙂

  6. leo March 22, 2014 at 1:09 pm - Reply

    Thanks Anurag Kumar! Hope you’ll update a Z Ultra 4.4.2 root post. 🙂

    • Khabu March 25, 2014 at 10:14 am - Reply
      Easy to root, enjoy!

      • Anurag Kumar March 25, 2014 at 12:57 pm - Reply

        it is for Z Ultra and for unlocked bootloader only…

  7. Vijayakumar Parthiban March 26, 2014 at 7:36 pm - Reply

    Hi Anurag Kumar,

    First of all i would like to appreciate your efforts in posting such kind of tutorials & Big thanks!!!

    I have a quick question about 2g to 3g toggle as on Cyanogen mod.
    can you help me to tag it to My device which helps me in big time by saving My battery life and data usage


    • Anurag Kumar March 26, 2014 at 9:48 pm - Reply

      you want to use everytime or not ?

      • Vijay March 27, 2014 at 2:29 am - Reply

        I’m looking for something like single click Cyanogen toggle on quick settings or widget
        It’s permanent button as you see in this image

  8. Swatch March 30, 2014 at 1:27 pm - Reply

    Hi, first of all thank you for this tutorial!
    I just did it, it worked perfectly.
    I thought everything would be wiped from my phone but everything was still there (which I didn’t want) so I did a factory reset from the phone settings.

    I don’t know if it worked before the reset, but now my camera doesn’t work.
    I can open the camera, everything seems to work, but there is no autofocus and I can’t take pictures nor videos.

    Any idea ?

    • Swatch April 6, 2014 at 8:36 pm - Reply

      Hi !
      I still haven’t found anything to fix my problem, a little help would be much appreciated…

      What’s the difference between the flashable firmware and the stripped firmware ?
      Should I try to flash again one of them (or both) in my phone, or could it be dangerous ?

      Thank you

      • Swatch April 9, 2014 at 3:55 am - Reply

        OK so anyone experiencing the same issue should look here :

  9. Vlad April 10, 2014 at 1:05 pm - Reply

    Hi, this procedure will erase apps, settings, media and all data? I’ll have to reinstall anything back? 🙁 thank you

    • Vijayakumar Parthiban April 10, 2014 at 4:08 pm - Reply

      I have been using this room for 1 Month. This completely resembles as stock rom 4.4

      Upto My observation you will not loose even a single bit of data

  10. Alan May 3, 2014 at 5:31 am - Reply

    does it have bugs? I have read that the first releases of this were full of bugs…

  11. ginto April 17, 2015 at 1:27 pm - Reply

    link was dead

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