When you gather all these devices together for an update, there's no doubt Sony really loves the letter Z. Apparently it also loves KitKat, because all these devices are about to get their Android 4.4. KitKat updates. It's more than a number in this case – Sony has made some substantial tweaks.


Here's the detailed changelog posted on the Sony blog.

  • Google’s Android 4.4; KitKat as standard – bringing improved performance & user interface (UI) optimisation…
  • If you’ve got a Sony PlayStation 4, you might recognize our new user interface – we’ve added the same sleek launch animation and live wallpaper across the lock and home screens. You’ll also spot a revamped Status Bar and Quick Settings… now more intuitive and customisable (also with a fresh new look)… cleaned up to ensure you only get the notifications you really need
  • As you might expect, we’re also uplifting Sony’s entire native app portfolio to the latest versions bringing tweaked / improved / current experiences for one and all… some of our favourites look like:
    • Messaging – a few UI adjustments here & there, including a slicker “send” animation, and deeper Emoji support for some expressive fun… also worth noting, you’ll find smileys wherever there’s an app with a keyboard
    • Email – you’ll be able to both load and see more mails… but don’t fret, navigation of said load is easier with a more responsive viewing pane – split screen modes divide info for easy digest… especially useful / works a treat on Xperia Tablet Z
    • Smart Social Camera – our social imaging experience makes its debut on our first Z Series devices; a selection of Xperia Camera apps directly accessible from your viewfinder… including personal favourite “Creative Effect”, and more for download to boot!
    • Battery STAMINA Mode - level-upping our unique power management feature, bringing smarter data management & more for prolonging your juice
  • Sony’s Media apps: WALKMAN, Album and Movies, with Sony Entertainment Network cloud service integration* – a more converged and full Sony entertainment experience – Sony Entertainment Network & PlayMemories integration with a more intuitive UI, better download speeds, and more…
  • And proving pretty popular, now totaling over 2 million downloads (!) – our unique custom interface experience: “Xperia Themes”, with downloadable UI packs from Sony Select – skin up to 280 assets across your Xperia smartphone with a variety of styles…
  • Compatibility with our SmartWear Experience; SmartBand SWR10 and Lifelog app– enabling you to record social, physical and entertainment activities and have them all visualised in a beautiful interface… reminisce at that past, make the best of the present and plan for the future

As usual, Sony points out that actual availability will vary among markets and carriers. It shouldn't be too long, unless you're tied to a heavy-handed carrier, but that's rare with Sony phones. Once this OTA is finished, Sony plans to move on to updating the mid-range Xperia T2 Ultra, Xperia E1, and Xperia M2.


Ryan Whitwam
Ryan is a tech/science writer, skeptic, lover of all things electronic, and Android fan. In his spare time he reads golden-age sci-fi and sleeps, but rarely at the same time. His wife tolerates him as few would.

He's the author of a sci-fi novel called The Crooked City, which is available on Amazon and Google Play. http://goo.gl/WQIXBM

  • Fatal1ty_93_RUS

    Any screenies?

    • Ambroos

      Looks just like the Z2 / Z2 Tablet software!

  • Ruben Moreno Jr

    I thought Nexus was first

    • http://thepolymath.in/ Deepansh Khurana

      It is. Nexus runs 4.4.2 as of now. This is 4.4. :P

      • Ambroos

        This is 4.4.2 actually.

        • http://thepolymath.in/ Deepansh Khurana

          I meant no offence to the person above me, all I wanted to do was just clarify the misinterpretation. Anyway, I wasn't aware as the article mentioned 4.4 and I don't have a Sony phone. Thanks mate! :)

          • Ambroos

            They've always been fast with sub-releases, thankfully, even though they don't really have to. Those last-point releases are usually only device-specific fixes anyway.

          • http://thepolymath.in/ Deepansh Khurana

            I've used Sony in the past and have been quite satisfied though the 'parting point' was when they released 4.2.2 for Xperia L which basically meant that it won't get 4.3 or 4.4. Then I switched to the N5 but Sony tries to update all phones so it's still far better than other OEMs. :)

  • Guest

    Windows 8 acts more like a mobile OS then it's predecessors, the Memory is always full

  • Ambroos

    Before people start complaining about the timing: they're well on time. Sony had already added a lot of the new features of later Android versions to their own skin. The only real functionality upgrades users get from going to 4.4 are Sony-specific.

    And the Sony-specific things are worth it, actually. They have an excellent set of media apps (Walkman and Album are amazing). Dialer is very cool (with a built-in answering machine now). Good keyboard with swipe-to-type (which has been there since Gingerbread). Excellent, versatile camera app. Runtime skinning (yes, proper theme support, by default). There's a ton of possibilities!

    • http://thepolymath.in/ Deepansh Khurana

      I loved Sony before I turned to Nexus. It'll always be my second go-to if I ever waver from my N5 or N7. I love their new policies, media apps and specially Walkman. :3

  • jlmcr87

    Xperia Arc ruined, unusable,lot of bugs with 4.0 update.
    Xperia S ruined, unusable,lot of bugs with 4.1.

    Xperia Z with 4.4.....?????Sorry this time i´m not going to try....Very happy with my nexus 5.

    • Felipe Pimenta

      The 4.0.4 for S was quite buggy, indeed, but the 4.1.2 is perfect compared to 4.0.4...

    • 0A05

      Well, actually I have been using KitKat on my Xperia Z and has been working amazingly well!! No bugs at the moment, really well done from Sony...

      • Pavan

        whats the egion, iam from India and still didnt get an update on my xperia z

  • JokR

    so basically it comes down to sony ignoring the Xperia SP user totally, nice move Sony!

    • Heaven

      Honestly..... be glad you do not want this update right now

  • Punar

    What's the availability status in India?

  • Badouken

    Just in time for Google to announce Android 4.5 :P or 5.0 for all we know

  • Leon Tseng

    Nubia est une marque de haut de gamme Smartphone chinois créé par l’un des grands constructeurs Smartphones chinois, ZTE. Au début de cette année, à CES 2014, ZTE a annoncé ses 5 mobiles et sa première smartwatch. ZTE Nubia 5S et ZTE Nubia 5S mini qui embarquent tous les deux un processeur de Qualcomm Snapdragon 600 (S600) sur une architecture de la génération Krait 300. En ce qui concerne le Nubia 5S, il s’appuie sur un grand écran tactile de 5 pouces Full HD, Corning III Gorilla Glass. Du côté du Nubia 5S mini, il s’agit d’un modèle légèrement plus petit qui se dote d’un écran Sharp IGZO de 4,7 pouces avec des caractéristiques quasiment identiques.

    Pour savoir plus:http://www.best-produit.com/idee-cadeau-fete-meres-zte-nubia/

  • scorch33 .

    I updated my Sony Xperia ZL and now my phone keeps sending text messages with the single word STATUS about 60 times an hour. Seems Rogers Visual Voice Mail and the new update don't play nice together.

  • eric

    Sony 4.4.2 update is totally a disaster. Most people face terrible battery drain problem after update. My ZL used about 40% of battery overnight.

    • nrumble

      I have the same problem. My battery lost 70% overnight! The processor is being used heavily and the phone is overheating, even when not being used!

    • Naos

      I also have the same problem, battery drain from 100% to 25% in a few hours with the phone being not used.

    • Aaron Douglas

      I have had the same problem. Phone heats up and battery is drained much quicker than before I installed the update.

    • Sam Macharia

      Same here when i went to sleep my battery charge was 90% from my xperia Z when i woke up a few hours later it was 40% what could make it be doing this? Plus it also overheats alot.

    • Iqodo

      Same problem here.. 8 hours and 23 minutes my battery is down to 2% without much use.. normally it lasting all day without a problem.

    • Kermit

      I agree. Terrible upgrade. How can I get it back to normal battery life?

    • Pradeep

      I have xperia z ,It is working like hell .Poor performance ,always low battery while playing games it gets stuck ..Is there any way to down grade it to the previous version ?
      Thanks in advance.

    • king

      Same problem i hav facing buddy.. I left in night 45% bettery in my Xperia z...... Net all the thing i hav done off but.in the morning mu phone got swtich off..........

  • shockwaves

    Since update on my xperia z battery life is terrible. It seems to be something to do with Google services, when I goto power management in settings Google services is sitting around 80% usage. This seems way to high like it's in some kinda loop cycle. Really wish I didn't do this update my phone worked just fine before it.

    • shockwaves

      I downloaded gservicefix from play store and. It seems to of repaired my phone no more battery drainage from Google services. Phone is running like a dream now.

      • shockwaves

        Update on my xperia Z problem after sony 4.4.2 update. After Couple of days passed my phone was ok using the gservicefix app I downloaded from google play. Then the 3rd day google services went back to running at 80% so was draining my battery like hell. So I thought ok i'll try what mandiie and sony suggested in a previous post here. Doing update using pc companion. This was fine until today google services running at 75% again and battery draining so I now have no idea what to do. So regret doing this update. Really annoying me now. If anyone has anymore suggestions that would be great.

        • shockwaves

          Just spoke to sony and they're aware of the problem. Another update will follow in june I asked when in june they said sorry we don't have an exact date. So looks like will have a months worth of battery drainage issues to look forward to thanks sony.

  • sean

    I was so excited about the update, but once I got it I was disappointed. Not just the battery drains quicker, it's like my phone has a virus, it's filled with bugs, N I have to turn off the phone 1-3 times a day just to fix it back up again. The features are pretty cool I can't lie. But the battery drainage and bugs need to be fixed.

  • Mslilak

    The latest update, on my Z1 has made it virtually unusable. The Google Services seems to be absolutely sucking the power! The CPU is going all the time and the phone is heating up like crazy! Becaus the power is being constantly drained, it takes ages to charge up! I'm so disappointed and wish I'd never installed the update.

  • mandiie

    I had this problem too of the battery draining and so I emailed Sony and they replied with1. Open PC Companion
    2. Start 'Support Zone'
    3. Select Phone Software Updates
    4. At this point a pop up will appear on screen asking you to connect your handset while powered on, as the software repair needs the handset to be switched off please ignore these connection instructions and click on the blue link which states "Repair Phone”
    5. Some on screen steps will now appear for you to follow. Please also connect the handset when you are prompted to do so.
    6. When you are asked to connect the handset (still with the phone powered off) please press and hold the key stated on screen for 30 seconds before connecting the handset and keep it held down as you connect
    7. The repair process should now begin.
    Please ensure your handset is not connected to your PC when performing the above as you will be instructed to connect your handset once you have followed the above steps. Your handset must also remain powered off at all times.
    Please note it may be the case that user data is lost during this upgrade. We therefore recommend backing up any data to your SIM card, Memory Stick, or PC before upgrading.
    Please be aware that if an update to a later version of Android has become available for your Sony Ericsson Xperia handset the new version may be installed. If this is the case you may notice some differences in the functionality of your handset when updating. All information regarding these changes can be viewed on the following link. We would recommend reading through this before updating.
    We hope this helps you.

    For the latest news, information and product support please visit
    http://www.sonymobile.com. I carried this out, had 96% battery at 10 PM woke up at 7 am with 94% and Google play services doesn't drain it. It's brilliant.

    • joe81

      Excellent info, tried this and it's worked for my xperia z. Many thanks mandiie

    • natterjack74

      I did this last night and it worked a treat. In fact I think battery life is now better than ever. Make sure you back up first. I lost Everything I had on the phone and had to restore. I then had to reinstall all my apps. But worth it. Thanks

    • binyo

      thanks a lot m8, been having issue with my z2 battery after the update. did exactly like you said and it worked wonders for me. my z2 can go a day easy between charge now.

    • sieben563

      Can someone help me please I tried this but I can't get past step 6 It won't start repairing.

  • Petr Kaiser

    For everyone who has issue with battery drain (google play services). It has been done because of picture synchronization. I have turn on my wifi at home and manually synchronize pictures... it takes an hour, but after that is battery drain gone and xperia's battery life is much better than in android 4.3!!

  • sakai

    Thid is a bad update battery drain...phone hot when turm off n lagging..wtf stupid update

  • Les

    I updated my sony z to the new kitkat os and the only problem i seem to be having is with my text messaging. it is very laggy and takes a long time to load, if it even does before i have to restart my phone. does anyone else have this problem? or anyone know of a possible solution?

    • xperia ZR user

      I am having the same problem. But it has gotten worse since my xperia zr's internal memory got filled up to above 70 percent. I'll empty it and see if it works.


    I wish I've had never installed this piece of shit! Now my battery is even worse than an iPhone! WTF

  • Benf1

    This is pretty disgusting to be honest. Surely they would have tested the release first? I now have an unusable phone. And to think I was considering the Z2...

  • ezra

    It's a terrible updates. My battery going to 50% after fully charged just on 4 hours. Zzzz

  • optimum

    Not only is my battery draining, my screen can't catch up to my texting, double tapping doesn't zoom in or out, I can't zoom in or out by pinching, and the phone is slower than molasses.

    Someone PLEASE tell me there is a way to reverse the update???? The whole experience is a nightmare.... I never liked Sony for their phones before.... But decided against my judgement to pick up the zl giving Sony a chance.... I am regretting my decision at this point..... Unless there's a fix the phone is entirely impractical. Ive never owned a phone that ran so slow that it couldn't keep up with my texting.... It's absolutely ridiculous....

  • ddd

    At least I'm not alone here, xperia Z battery dying so fast I have to carry my charger everywhere so it makes this incredible multitasking helper phone kind of useless now.... Fix it!!!

  • Srikanth Reddy

    Android app ringeye helps u to better monitor the battery charging level and also change mobile mode remotely .Plz use it review it

  • Srikanth Reddy

    An Android app RingEye helps u certainly to monitor Battery levels and also change mobile mode remotely.Plz try this

  • Ramon

    As everything was well, i should have never updated the phone (XPZ) to android 4.4.2. What a CRAPPY update. My phone is lagging like crazy, my GS2 & Huawei Ascend Y300 is even faster than the XPZ right now.

    The battery life sucks, even though this version of android should run well on low end devices
    and should use less recources!? I cant make a backup with pc companion. I
    cant save files to my microSD card with AndFTP and some other apps. The Chrome browser crashes when closing the last tab and when i open chrome, it
    opens the website i visited the last time before i updated to 4.4.2. Typing text, overall, is slow and laggy/buggy as well.

    I even did a factory reset. Still the same issues. The battery life is a little better now tho.


  • Amaryllis Sheen

    There's no other way around the battery drain due to Google Services bug after 4.4 update, than to completely reset the phone from scratch. Since I had the Sony Xperia Z it has been upgraded twice and each time the same problem! I followed all instructions to fix until Sony had an update fix but nothing worked but a complete reset. . ! Honestly, annoying to do but it works.....Remember to back up first!

    • shockwaves

      I tried the reset method over a month ago on my xperia z an it didn't work for me.

      • shockwaves

        I'm still using gservicesfix app which can be downloaded from Google play store. It really does fix it for a while but you need to keep an eye google play services in settings power management. Like today for me it jumped to 93%. Wish I didn't do this stupid update.

      • Amaryllis Sheen

        I know. . . After I posted that reply my phone overheated again and Google Play Services registered at 88%!!! So rather than reset it again, I rebooted the phone and then rebooted again and now it is behaving itself for the moment. It will eventually settle down like it did last time after the problems with the last update. Just reboot as soon as you see Google Play Services using up too much CPU. Let me know how you get on....? Frankly, we shouldn't have to be doing any of this - after all, this phone didn't come cheap?

  • Daniel Slipec

    this is ridiculous. Their solution right now is to uninstall google services app. Now I can't use many of my normal programs. Very poor fix time. Now my phone keeps crashing. Go on support and they do nothing for you. Unfortunately I am done with sony. Horrible customer service lately.

  • Nirupam Nishant Mishra

    my battery last for 3 sec after upgrading it to 4.4.2 and sony has no answers to this tried every possible thing nothing works..

  • Nirupam Nishant Mishra

    I have sony xperia zl, i upgraded it to 4.4.2 kitkat. My phone showed me a drop of 100% to 25% in 25 min and now the phone dosent even switches on. Kitkat is disaster for sony.my maximum consumption of battery is going on in sceen 98%. It shows no android function nothing. Sony is really disgusting. Its just trying to play a blame game. They are not taking any responsibility to fix it.

  • shockwaves


    • shockwaves

      I can honestly say this is the only way to fix this issue. After a couple of days of use now my phone now lasts the whole day no problem and no google play services going up to 80%+ zapping the battery. REMEMBER don't let your phone install google play services updates. It does keep coming up with warnings that apps won't work without it but they do work just fine. COME ON SONY WE ARE STILL WAITING

  • Mohit Pahariya

    after the update i have an issue with walkman while playing music the sound lag and break in my earphone.even i updated my walkman into latest version. but problem is still there.

  • Robert Adam

    I am experiencing all the problems listed here, the worst of course the atrocious battery drain immediately following disconnection from full charge, but another annoying thing is that apps that worked PERFECTLY well before update are now totally useless. I would like to add that this is my last ever Sony purchase. Just after getting this phone my Sony Bravia tv went MENTAL a month out of warrantee, Sony customer services are rude, disinterested, obnoxious, lying ( at least until they discovered I had kept ALL 314 emails exchanged ) and APPEAR to have a standing instruction where the customer is always wrong. I treally begin to wonder if the " Sony kill switch " really IS a myth.



  • http://www.twitter.com/kezren89 kezren89

    Anyone help me i lost my sony Z with the 4.4.3 update, then i purchased a new Z and it has 4.4.2 update, when will the update come back to 4.4.3 lol ?