Update Xperia Z2 and Z2 Tablet to 5.0.2 Lollipop 23.1.A.1.28 Firmware ftf File

If you are Xperia Z2 or Z2 Tablet owner and have been living under rock then news for you is Sony has rolled out 23.1.A.1.28 firmware based on Android 5.0.2 Lollipop for your smartphone which has been certified for Xperia Z2 and Xperia Z2 Tablet.

Update Xperia Z2 and Z2 Tablet to 5.0.2 Lollipop 23.1.A.1.28 Firmware ftf File

So if you haven’t yet got the OTA update, then you know there’s always a way to install firmware manually on Xperia device and we will be using same method today to help you update Xperia Z2/Z2 Tablet to 23.1.A.1.28 Firmware Android 5.0.2 Stock with ftf file. Should we start? Alright, lets move.


  • First of all ensure that you have Xperia Z2/Z2 Tablet Drivers installed on your computer.
  • Your Xperia Z2/Z2 Tablet should be unlocked.
  • Make sure the battery is at least 80% charged.
  • You need to have Flashtool installed on your computer. If not, follow –> Install Sony Flashtool in Windows


Please read each and every step carefully to 23.1.A.1.28 Android 5.0.2 Lollipop firmware on your Sony Xperia Z2, Z2 Tablet. AndroidsDNA.com cannot be held responsible if you damage your phone because it will be entirely your fault.

How to Update Xperia Z2 and Z2 Tablet to 5.0.2 Lollipop 23.1.A.1.28 Firmware ftf File

Step 1: Open the Flashtool.exe and click on “Devices” and then click on “Check for updates”.

Step 2: Check the update for Xperia Z2 and start downloading it. When downloading is completed, click on “Create” and flashtool will start preparing firmware for your Xperia Z2 phone or tablet. When it is done, click on lightening icon at top left of of window.

Step 3: Select Flashmode and then choose the .ftf file you have just placed there.

Step 4: Look at right side window and select wipe data, apps log, cache etc (I recommend wipe all).

Step 5: Click on ok so the Flashtool start preparing the 23.1.A.1.28 .ftf firmware for flashing which will take few seconds.

Step 6: Once it is done, you will be asked to connect your Xperia Z2, Z2 Tablet to your computer. Also you will be shown the instructions on how to connect your phone like turning it off and then pressing Volume Down button followed by connecting it to computer using USB cable.

Step 7: Once your phone is detected, flashtool will start flashing Android 23.1.A.1.28 .ftf Stock firmware on your Xperia Z2, Z2 Tablet.

When flashing is completed, your phone will reboot. When it reboots, verify the update from Settings –> About. You will see that your Z2 is now on Android 5.0.2 Lollipop with 23.1.A.1.28 Firmware.