New Xperia Z1s firmware (14.4.B.0.20) certified – could it be KitKat?

by XB on 25th June 2014

in Firmware, Xperia Z1


Xperia Z1s_14.4.B.0.20The above question is the same one we posed when we saw firmware build 14.3.D.0.183 certified for the Sony Xperia Z1s (C6916) for T-Mobile. That build never saw the light of day and now another build has been certified, this time with version number 14.4.B.0.20. So we’ve now moved from a build template of 14.3.X.X.XXX to 14.4.X.X.XX.

Xperia Z1s owners have been waiting patiently for KitKat to arrive , if Sony/T-Mobile do manage to get this out, it looks like it will be the KitKat update. We’ll let you know if/when the update starts to roll.

Xperia Z1s_14.4.B.0.20

Thanks Marco!

  • John Zakaria

    Android l has arrived and you still think of kitkat?!

  • Ethan ‘blaze’ Parker

    Android L is still in dev preview.

  • Mirrorpurple

    WHERE IS IT?! BUGFIX FOR Z1 SONY YOU BASTARD

  • Pingback: Xperia Z1S ?????????????()

  • Sharod Richardson

    google moves fast

  • utsav koju

    Its not google moving fast its sony being slow and steady and cannot keep it up with updates. See HTC and Samsung, They both have manage to update their flagship devices to Kitkat and have promised to update to L within 90 days of general public release.

  • Sharod Richardson

    Not saying it’s goggles fault, and Sony isn’t behind its tmobile holding back the Z1s, the z1 has had kitkat for Months

  • utsav koju

    But whatever reason it may be sony still lag far behind releasing software updates for its devices. It barely supports it devices for a year and then there won’t be any updates available.
    In case of mid range devices sony is too cruel to its customers. First it release mobile with crappy buggy os and then brings decimal incremental update. Last year SP, M, L are all stucked and so would it be with Z and Z1. I don’t think they would ever get L update.

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  • Steven Khoo Skkl

    Guys,I seriously just had an update for KitKat .233…Installing it but my phone was low on battery..I can’t wait to try this new fw out but I know that this was only release in Austria??
    So,what can this mean for my phone,me and all us Z family??
    BTW,my Z is a C6603 from Malaysia.I didn’t buy it from SONY Store but a licensed dealer of Sony and was a newer batch bought in May since I wanted black and it was sold out..
    This a screenshot of it.

  • X

    Your argument escalates really fast.

    “It barely supports it devices for a year and then there won’t be any updates available. ”

    My XZ is more than one year and still getting update.

    “…brings decimal incremental update.”
    I don’t know what you’re expecting apart from bug-fixes. New features only come after new phones are out.

    “But whatever reason it may be sony still lag far behind…”

    Arguably this is only the 3rd year this new “Sony” has entered the market. And in 2012 their phones didn’t get further updates because Qualcomm stopped providing drivers for the chipset and all phones using those particular chipsets met their end of update. My Xperia Z has received several updates already since bought and we have seen Sony rolling out lots of updates. Given their limited resources, I think this is fair enough already.

    Like he said Kitkat has been out for a while and this is obviously the problem with carriers. (And every brand has issues with Google services draining battery life). It’s ironic how you mention Samsung and midrangers together. Why don’t you mention too that Samsung just dumps almost every midrangers and low-end devices. Not to mention that they release almost 30 phones per year.

  • X

    Your argument escalates really fast.

    “It barely supports it devices for a year and then there won’t be any updates available. ”

    My XZ is more than one year and still getting update.

    “…brings decimal incremental update.”
    I don’t know what you’re expecting apart from bug-fixes. New features only come after new phones are out.

    “But whatever reason it may be sony still lag far behind…”

    Arguably
    this is only the 3rd year this new “Sony” has entered the market. And
    in 2012 their phones didn’t get further updates because Qualcomm stopped providing drivers for the chipset and all phones using those particular
    chipsets met their end of update. My Xperia Z has received several
    updates already since bought and we have seen Sony rolling out lots of updates. Given their limited resources, I think this is fair enough
    already.

    Like he said Kitkat has been out for a while and this is
    obviously the problem with carriers. (And every brand has issues with
    Google services draining battery life). It’s ironic how you mention
    Samsung and midrangers together. Why don’t you mention too that Samsung just dumps almost every midrangers and low-end devices. Not to mention that they release almost 30 phones per year. Oh and about the quality of updates, why don’t you survey Samsung users a bit? Because in FB groups I’m seeing a lot of people complaining.

  • Jim

    I think the Z (and its siblings) were the first to be developed fully under the Sony flag, the 2012 devices must have been in the works long before they dropped Ericsson.

  • sony

    Meanwhile new software update for Xperia V has come out yeahh….

  • el_sur

    I have a Z1s. It’s the last time I ever buy a carrier branded phone.

  • Tim Westerholm

    Haha sorry to disturb you Sony Xperia Z1S owners, but first of all: wasn’t you first celebrate the Z1S was USA exclusive and that you technically had the best Sony phone until they released the Z2? And therefore it’s understandable that Sony doesn’t set the Z1S to the very first priority list of the KitKat update simply because you are a small number of all Z-series owners. But you will get it, and isn’t that the point. But if you complain about this, beware next time if Sony would release, for example, a Xperia Z2S USA exclusive device.

  • Abdul Ghani

    this might be 4.4.4

  • Danny

    I have a Z1s and is awaiting the new updates. But from Experience, the first Android upgrade update always have huge bugs that make the phone act irrationally. maybe i should wait until the bug-fixing update that comes after this before I update at all.

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