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Android 4.4.4 KitKat Update For Sony Xperia Z, ZR, ZL & Tablet Z Rolling Out Now

After a long wait, Sony is finally seeding the Android KitKat 4.4.4 update to the early 2013 Xperia high-end devices. The update is now available for the Sony Xperia Z, Xperia ZL, Xperia ZR, and the Xperia Tablet Z.

The update is based on Android KitKat 4.4.4 and carries a build number 10.5.1.A.0.283 for Xperia Z, ZL and ZR. For the Xperia Tablet Z the build number is 10.5.A.0.230. The update is only available for the Wi-Fi only variants of the Xperia Tablet Z though, the 3G models haven’t received the update yet. The Wi-Fi only models are SGP311 and SGP312.

Sony has also provided a changelog for this update on its support pages for the four devices. The changes include upgrade to the latest Android version, better battery performance in some background applications, Email stability & performance enhancements, along with latest bug fixes and enhancements. There are also general improvements to MMS, Calendar, Wi-FI, Contacts and more.

The updates are currently available only in a select few countries and regions so you could have to wait about a day or two more depending on which country you’re from, to receive the update. Users from France, Thailand, and Middle East have so far received the update on their devices and are reporting an overall smooth experience with better performance compared to the earlier firmware which was based on Android 4.3 Jellybean. If you’re curious about the update and can’t wait for a few days to receive the official update on your device, you can head over to this thread on XDA and flash any of the available 4.4.4 firmwares on your device. You don’t need to be rooted or have your bootloader unlocked to be able to do so, simply download the Xperia Flashtool software to your PC and load the firmware you download from the thread linked above to flash it on to your device.

It did take Sony some time to bring the KitKat update to these devices, but the new update certainly seems to have been worth the wait going by the positive impressions posted so far by users on XDA.

If you have received the update on your Xperia Z, ZL, ZR or Tablet Z, do share your experience under the comments below.

Sony Xperia ZR Articles

  • jas

    Just tried updating…failes

  • jas


  • Candace

    Mine failed too. Does anybody have a fix?

  • guy

    Downloading update through Sony PC Companion fails every time…

  • hantwo16

    Failed in indonesia after restarting my device

  • taqi

    failed for me too

  • justin

    I’m an xperia Z LTE user in Indonesia, successfully updated my device with the latest version from android (KitKat 4.4.4) just an hour ago. Thank you sony

  • SP

    From Cambodia fail too. Cannot install with this latest version.

  • xiiaohao

    Installed fail

  • xiiaohao

    Try again & again same only

  • Stewart

    On Vodafone Australia, failed to install…. Try again it says, have to re-download…. Damn, I was all excited

  • CHB Wien

    Worked great for my Austrian phone from 3.

  • Ganda

    Tried to update it for the third times and it still failed,… (xperia z user)

    • apad

      You need to update using pc companion. It will take care the rest of the process.

      • Ganda

        Thanks, will try to do that

  • potch

    I have the same problem too.i tried it several times and it fails.xperia z user,australia.

  • Akmal

    It failed after tried few times. User in Malaysia

  • mancak

    Thank God, mine updated fine using PC Companion. Xperia Z, Malaysia.

  • Kido

    Whenever I update the new software it failed to install. Why is that? -_-

  • claire

    Sony Xperia z in Australia. Downloaded ok but failed install. Very disappointed.

  • chita

    Mine failed
    been trying since last night! Why idea why? Xperia Z, Malaysia

  • Richu Blessan

    I am from India, I got the update yesterday. Now upgraded to 4.4.4.

  • Oscar

    If it failes to update OTA, try updating using your pc companion, worked for me.

  • Ferdinan Ekawahyuni

    Guys try update your sony device from PC COmpanion,,,

  • Ovidiu

    Tried update via pc companion and failed
    No wifi update

  • Gumri

    You must use PC Companion. I have a trouble first with the recognition but I connected again, pressed the power button and volume together, and then the update continued without problem. I have now kit kat on my xperia z.

  • Charlotte Spain

    Hey Folk’s, Just completed update to 4.4.4 on Xperia Z (C6603) [Vodafone UK] – Improvements to app speed, no lagging, running smooth, no jumps. Battery is also lasting much longer! No overheating issues yet. I will update you if I find anything bad 🙂

  • feroz

    It says i have to download via pc so i did, its like 400mb…. My version is 4.4.2 kitkat but this is 4.4.4 i know 🙂 …im from saudi arabia

  • fez

    glad its not just not me! thought i was going crazy, when is the fix going to be announced?

  • redcross, philippines

    zr, philippines – failed too

  • tagalog

    Pc companion will do the job.

  • S

    Definitely have to use the PC companion. It takes a lot longer but at least it works.

  • sayed hassan

    Finally updated my xperia z to 4.4.4 , its working 10 % better than the previous one.. installed using pc companion ..

  • JMIL


  • Nabil

    I tried to install the new update with a failure error “Could not Install” for four times.

  • Stewart

    Finally got it installed via my PC, tried a couple of times with phone only but always failed. Now to see if any battery improvement

  • Jon Procter

    I haven’t got it yet on my UK unbranded C6603 :'(

  • zperia Z Msia

    succeeded only after many tries, wasted whole afternoon, but the update looked nice. have to read instruction very carefully, have to press vol down button at some pt. otherwise it will fail. And reminded to back up!!! I lost all my photo + video! still having hard time recovering them…

  • Bocore

    Fail to update

  • colinoz69

    Mine failed in Australia. Would down load then abort 10 seconds into install. This was on wifi so I connected via Sony PC Companion and it was OK. Took about 45 mins

  • aco

    dont update, draining battery so fast and always overheat… looking for tutorial downgrade to jelly bean 4.1.2 Xperia Z lte,indonesia

  • Lyndle Bob Cabisada

    Use PC Companion to update your device.if its failed,try Support Zone on your PC Companion click it.find Phone/Tablet Software Update and click start below,then click repair my phone/tablet and follow the instructions,i solve my problem every time i do that specially if my device don’t recognize my phone on my computer.

  • Lyndle Bob Cabisada

    Be sure you downloaded the update for your device using your COMPUTER through PC Companion.