Xperia Z1s for T-Mobile sees new firmware certified (14.4.B.0.56)

by XB on 16th October 2014

in Firmware, Xperia Z1


Xperia Z1s for T-Mobile_14.4.B.0.56New firmware for the Xperia Z1s (C6916) for T-Mobile has been certified by the PTCRB, moving the build number from 14.4.B.0.37 to 14.4.B.0.56. The ’37’ firmware build brought Android 4.4.4 KitKat to the Xperia Z1s for the first time, so expect this ’56’ build to bring some bug fixes and performance enhancements. We’ll keep you posted on its release.

Xperia Z1s for T-Mobile_14.4.B.0.56

  • WilliamTell13

    Thank you Sony for staying active on updating your devices!

  • Robert Terry

    Hopefully this update happens, as T-Mobile doesn’t always release the certified updates.

  • fried_egg

    Looking forward to this (if its the “t-mobile” that powers the ee devises) because something is absolutely killing the battery recently and according to the power management graphs its not any downloaded app. i wish i could decode the signal graph colours though in the sub chart

  • Roger carp

    Too many certified updates and too little released updates. My z1’s touchscreen us going haywire every few words I type or actions I do. Starting to regret buying this damn phone

  • WilliamTell13

    This! I swear my battery has been draining super fast recently and I have no idea why. Maybe it’s Google Play Services, I have no clue though. I was actually thinking of doing a factory reset on my phone and starting from scratch, but at this point, I’m going to wait for this update to (hopefully) release and see if that helps.

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  • Gomez Sierra Salvador

    Xperia Z stuck on 4.3 !! perfect.

  • Andrew

    I got the prompt to download and install 14.4.B.0.56 it this morning (in Oklahoma City, OK)!

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