Daily Tech News: How to update Xperia Z3 to official Android 5.1.1 firmware build 23.4.A.0.546

Sunday 26 July 2015

Sony has released the latest Android Lollipop version starting with the Xperia Z3 and Z2

series. The over-the-air update with build version 23.4.A.0.546 should be available for your

Xperia devices anytime now.

Head over to Settings >> About phone>> Software updates>> System updates to check the

availability of the new stock firmware. But for some reason if you have missed the OTA

notification or, it is yet to hit your region, do not worry as the FTF link for the OTA is available

to perform a manual installation on the Z3.

Following is a guide to install stock Lollipop build 23.4.A.0.546 on Xperia Z3 using the Sony

FlashTool. This method is also helpful for those who have rooted their Z3, as the OTA will

be available for devices with locked bootloaders only.

Pre-requisites

The stock firmware used in the guide is compatible with Xperia Z3 D6603 model. Applying this on any other Xperia variant might brick the device.

Turn the developer rights on. Tap on Menu then Settings and navigate to About Phone. From there tap the build number a few times.

Enable USB debugging on the phone- navigate to Menu>> Settings>> developer options and check the USB debugging feature.

Step-1: Download the FlashTool file on your PC. Unzip it then install it following the screen

prompts

Step-2: Download Android 5.1.1 build 23.4.A.0.546 firmware on your PC

Step-3: Take the .ftf file to the firmwares folder, which is located on the path where you

have unzipped the FlashTool

Step-4: Switch off the Xperia Z3

Step-5: Run FlashTool on your the PC and click on Flash

Step-6: You should see prompts asking to connect the phone with the PC. Do not turn the

phone on

Step-7: Wait for some time until the update is completed

Step-8: Upon the completion of the process, unplug the phone and reboot it

That's it. You can now enjoy the newest stock Lollipop update on your Z3.