A small firmware update has begun to roll out for the Sony Xperia Z, Xperia ZR and Xperia Tablet Z. The Android 5.1.1 Lollipop firmware update has build number 10.7.A.0.228 (versus 10.7.A.0.222 currently) and strangely leaves the handset exposed to the Stagefright exploit. Few other key changes have been noted.
The update is currently live in single regions for the LTE variants of the Xperia Z (C6603), Xperia ZR (C5503) and Xperia Tablet Z (SGP321). We would expect the rollout to widen to other regions shortly. As usual, FTF firmware download links are included below. If you updated, feel free to chime in with your impressions below.
Sony Xperia Z (LTE) FTF firmware files – Android 5.1.1 Lollipop (10.7.A.0.228)
Xperia Z (C6603) 10.7.A.0.228 Germany Generic
Sony Xperia ZR (LTE) FTF firmware files – Android 5.1.1 Lollipop (10.7.A.0.228)
Xperia ZR (C5503) 10.7.A.0.228 Turkey Generic
Thanks Ben and Toshik!
Sony Mobile has released the Android 6.0.1 Marshmallow update for the Xperia Z3 and Z3 Compact handsets running the Concept for Android beta trial. Build number MMB29M.Z1.3021-somc moves the Android version to MR1 (Maintenance Release 1). The only change we are aware of (apart from the 
Good news for those running the Sony Concept for Android Marshmallow beta – the testing was formally due to conclude at the end of this week, but Sony Mobile has now decided to extend the programme until after the Christmas and New Year break. 
Sony Mobile has updated the Concept for Android Marshmallow firmware to build number MMB29M.Z1.3027-somc. The update fixes a number of bugs for those that had problems with the previous ‘3021’ update. Sony had to halt the previous update after people reported issues with the new Android 6.0.1 firmware. 
In a sign that the official Android 6.0 Marshmallow firmware update may soon be landing on Sony Xperia devices, the update was recently certified by the Wi-Fi Alliance for a number of Japanese models. 
A new firmware update for the Sony Xperia M2 is now rolling with build number 18.6.A.0.182. The update is currently arriving via OTA (over-the-air), so you won’t find it appear on PC Companion or Xperifirm just yet. It is not clear whether this update brings the 
Sony Mobile plans to move the Xperia Z3+ and Xperia Z4 Tablet straight from Android 5.0.2 Lollipop to Android 6.0 Marshmallow at some point soon. A new firmware update has been certified by the PTCRB with build number 28.0.A.8.272. Unfortunately, this is no Marshmallow certification though as it is a small bump over the existing firmware (28.0.A.8.266). We’re not sure why Sony is shortly looking to push this maintenance update, we hope it does not mean that the Android 6.0 update will take some more time before it arrives. We’ll let you know once this ‘272’ update starts to roll. 
A small firmware update with build number 28.0.A.8.272 is now rolling for the Xperia Z3+ and Z3+ Dual. The update moves the handset from build number 28.0.A.8.266 and keeps the handset on Android 5.0.2 Lollipop. This very well could be the last update before we see Android 6.0 Marshmallow hitting the handset directly, although Sony has not confirmed the timeline for this yet. We will keep you posted on further developments. In the meantime, you can download the FTF firmware files for both variants below. 
The Sony Xperia C4 and C4 Dual were expected to move straight from Android 5.0 Lollipop to Android 6.0 Marshmallow, skipping Android 5.1 in the process. However, out of the blue, Sony has pushed the Android 5.1 Lollipop update to the handset in the form of build number 27.2.A.0.155 for the Xperia C4 and build number 27.2.B.0.155 for the C4 Dual. 
After seeing the Xperia C4 unexpectedly see the Android 5.1 Lolllipop update yesterday, it looks like Sony has also pushed the button for the Xperia C5 Ultra. All variants of the handset are receiving the Android 5.1 firmware update – the Xperia C5 Ultra (E5553, E5506) has been updated to build number 29.1.A.0.87, whilst the Xperia C5 Ultra Dual (E5533, E5563) is being updated to version 29.1.B.0.87.
Sony Mobile has been careful not to overpromise on when the Android 6.0 Marshmallow will officially start to roll on Xperia handsets. Apart from the successful Concept for Android program, which has been successfully rolling the latest versions of Android 6.0 to Xperia Z3 and Z3 Compact participants, news on the official Marshmallow rollout has been quiet. 
Sony Mobile has released a new firmware update for the Wi-Fi versions of the Xperia Z2 Tablet and Xperia Z3 Tablet Compact. The new update is currently only live in Japan and moves the build number from 23.4.A.1.264 to version 23.4.A.3.6. keeping the tablet on Android 5.1.1 Lollipop. The changes in this latest version are unclear and it is not certain that we will see the update outside Japan. However, if you would like to update your tablet, we have included FTF firmware links below. 
Sony developers sent out a survey to all of those running the Concept for Android Marshmallow on Xperia Z3 and Z3 Compact handsets late last year, asking how happy were they with the beta and how long they wanted it to go on for. The results were recently released, which you can see below, and it’s quite clear that the Concept programme has received a positive reception with the majority wanting it to go on for as long as possible. 
Sony Mobile has today updated the Xperia M5 to Android 5.1 Lollipop. The single SIM Xperia M5 (E5603, E5653, E5606) moves to build number 30.1.A.1.33, whilst the Xperia M5 Dual (E5633, E5663, E5643) moves to version 30.1.B.1.33. All of the variants, apart from E5643, are seeing the update roll at the time of writing. 
The Xperia M (C1904, C1905) has become the first Sony handset to receive 
With a number of handsets receiving the Android 5.1 Lollipop firmware update that 
Japanese operator has 
Sony Mobile must be closer to releasing the official Android 6.0 Marshmallow as it has released an “
Sony Mobile 
We don’t normally like to quote what Sony reps are saying about software timings on social media, but right now we have very little to go on with regards to the Android 6.0 Marshmallow update for Sony Xperia devices. In the past, Sony Mobile has given some ballpark of when we can expect to see big new firmware roll, but the company has been very quiet this time around.