Posted on Jun 11 2014 - 11:14pm by Anurag Kumar

Yesterday we saw two firmware updates from Sony, first one is for Xperia SP in form of 12.1.A.1.205 firmware which moves it from previous android 4.3 12.1.A.1.201 firmware and second one is for Xperia M in form of 15.4.A.1.9 firmware which enabled installing of Xperia themes on Xperia M now which was previously missing in first build release of android 4.3 for Xperia M.

Changelog for both updates were not available yesterday but Sony has updated details of  Xperia SP 12.1.A.1.205, Xperia M 15.4.A.1.9 firmware on software pages of both phone on their website. If you haven’t updated your Xperia SP and Xperia M yet kindly follow below mentioned link.

Xperia SP 12.1.A.1.205 firmware updating steps.

Xperia M 15.4.A.1.9 firmware updating steps.

Xperia SP 12.1.A.1.205 firmware changelog

Sony has mentioned below points in the changelog on their website.

  • Shorter charging time.
  • Enhanced performance and stability of Mobile Bravia Engine 2.
  • Improved screen visibility to cover more lighting conditions.
  • Quicker file management.
  • All the latest bug fixes and stability improvements.

Xperia M 15.4.A.1.9 firmware changelog

Check the changelog below as mentioned by Sony.

Xperia M 15.4.A.1.9 firmware

  • Enhanced user performance.
  • Improved battery life.
  • Software performance enhancement.

If you have updated your Xperia SP and Xperia M on concerned firmwares, let us know what changes you noticed. Drop your comments below.

Thanks Ben 🙂

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6 Comments so far. Feel free to join this conversation.

  1. Mehtab Singh June 12, 2014 at 2:34 pm - Reply

    Is Xperia SP update available in India?
    My Phone is rooted, so what will happen if I update my phone?

  2. Wafi Azmi Hartono June 12, 2014 at 7:31 pm - Reply

    But there’s a bug fixing in Xperia M, now we can install theme without rooting it

  3. ciril June 13, 2014 at 5:51 pm - Reply

    wts update size

  4. Nikhil July 15, 2014 at 4:20 pm - Reply

    I have update my xperia M to latest 15.4.A.1.9 software and now can install Xperia themes, but it only changes my wallpaper and tones … dosent change softbutton nor icons

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