Xperia X and X Compact receive December 2017 security patches (34.3.A.0.252)

by XB on 5th December 2017

in Firmware, Xperia X series

Sony Mobile has begun to rollout a new firmware update for the Xperia X and Xperia X Compact, moving it from build number to 34.3.A.0.244 version 34.3.A.0.252. Sony has a great track record of getting security updates out faster than most other manufacturers. The same applies here, with these handsets receiving the 1 December 2017 Android security patch. If you have downloaded thee update let us know your impressions in the comments below.

DOWNLOAD Xperia X and X Compact FTF firmware files (34.3.A.0.252) – Android 7.1.1 Nougat

Xperia X (F5121) 34.3.A.0.252 Germany Generic
Xperia X Dual (F5122) 34.3.A.0.252 Central Europe 1 Generic

Xperia X Compact (F5321) 34.3.A.0.252 Latin America Generic

Thanks Pasca, Peter and SonyXperiAilesi!

  • Alex

    I used to get these updates pretty quickly – but I only got the November update the other day!

    Does anybody notice any other changes by Sony with these updates ever, or is it literally just a security update for Android?

  • Moisés

    It happens to all brands.
    Some ppl have the november patch, some ppl still only september or older.

    Some ppl still wait for Android 7.1 when other users that own same phone have had it for months.

  • mountain

    So X/Compact is not getting Oreo this month?

  • Ming William Lee

    The November one got problem on Google’s side causing issues such as battery drain, thus pulled.

  • Thariq Mohammed
  • Emil Oskarsson

    However they should really begin to think about pushing out security updates for devices even after they reach EOL (which means they won’t get any new Android versions) such as the case with the z3+/Z4 and z5 series :p

  • Ju Rgen

    Without Oreo.. oh sony…

  • Jon

    Exactly. Vero probably in January

  • Emil Oskarsson

    Totally unnecessary function for me since it made me wake up the screen all the time in my pocket, so don’t want it at all xD

  • Laraib

    I have upgraded it to .252 version
    I still figure out nothing new with this update ! Camera sharpness is not there at all and photos are grainy a lot in low light !
    One thing I like is the performance is slight top notch and the ram has been cleared by 800mb amazing ! It was around or less than 2.6 gb now it is 1.60 gb…. nothing great !

  • Moisés

    I guess these two get patches every 3 months.

    March, june and september

  • Renaldi Amareza

    Is everybody here got no issued after update this firmware? My Xperia X comes error and got no baseband version on about phone, and can’t to check imei. Is it means that my X fail to update ora firmware bug?


    Probably your XPERIA X didn’t install the firmware properly, u might want to bring it to a repair centre see what the person tell u


    Remember that currently Sony is still rolling it out to the SNAPDRAGON 820 ones, so it might take a while to update these 2


    Oh! No wonder why my XPERIA XZ haven’t been updated to ANDROID OREO!

  • Bertjefred

    It depends on your firmware region. I was on the Customised BLX one. And switched to Customised DE because that one gets the updates earlier. You can check here:
    Just takes a flash and warranty is not voided.

  • JC

    It’s dead.

  • shumayal

    Oreo in January?

  • Yuri

    Same with my X Performance, I’m still waiting. Damn carriers !

  • Reigo Liiv

    Let’s hope. Better late and less bugs then early and buggy.


    Thanks to Google and their battery draining issues on that patch, we aren’t able to get the newest version

  • Whats name of the theme from screenshot?

  • insyt

    Apparently the S810 doesn’t support Oreo. But it should support the newly released Oreo Go edition.

  • Night Guy

    No, i mean security patch. Ik z5 will not get oreo.

  • Manu

    Great idea, Thariq! I’ve already signed the petition!

  • Simemek Uka Buka

    Manifesto Full Streaming Online ™ ULTRAMAX4K.BLOGSPOT.COM

  • impasse

    got it on my unlocked xperia xz today (f8331)!


    When oreo will be arriving
    Battery backup is hoping to be increased in oreo update so do camera please roll them soon
    Waiting desperately…….

  • Anukumar

    After update battary drain fastly and some heat while charging

  • Anukumar

    Any one have battary drain problem

  • Anthony O’Donovan

    Does anyone have a solution to the problem with xperia x not communicating with PC? Xperia not recognised when connected via the USB cable. Unable to transfer files to and from the phone via the USB.

  • gali leo

    I have windows 10 home version, no problem. try different cable. or update your USB for google USB drivers.

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