Sony rolled out Android 5.0.2 Lollipop OTA Stock update with firmware version 23.1.A.0.726 for its flagship Xperia Z3 D6603. However since this update unroot your phone, so thousands of users were reluctant to update their phones to this firmware.
Now thanks to Developer over at XDA for working over this 23.1.A.0.726 firmware and releasing pre-rooted one so users can update their phones to this latest Android 5.0.2 Lollipop from Samsung without losing the root. The instructions in this post will help you to update Xperia Z3 D6603 to Pre-Rooted Android 5.0.2 Lollipop (23.1.A.0.726) firmware.
- Make sure your Xperia Z3 D6603 is at least 66% or charged.
- Ensure that you have complete backup of all your important data.
- Download Pre-Rooted Android 5.0.2 23.1.A.0.726 Firmware
How to Update Xperia Z3 D6603 with Pre-Rooted Android 5.0.2 (23.1.A.0.726)
Step 1: Download the the pre-rooted 23.1.A.0.726 Android 5.0.2 Lollipop firmware for your Xperia Z3 and place the zip on desktop.
Step 2: Connect your Xperia Z3 D6603 to your computer to transfer the download zip files to your phone SD card. [Make sure latest Sony drivers are installed, otherwise your PC won’t recognize your phone]
Step 3: Turn Off your phone and boot it to recovery mode. For that, press “Power” button and once you see LED light blinking, press “Volume Up” button few times to get it to recovery mode.
Step 4: In recovery mode, I recommend to first create backup by choosing Backup –> Swipe to Backup option.
Step 5: Go back to main recovery menu and select “Wipe, Advanced Wipe” and then “Cache”, “Dalvik/ART cache” and “Data” to completely erase the previous ROM from your Xperia Z3.
Step 6: Again go back to main Recovery menu and select “Install” option to browse for the transferred zip file. Choose Swipe to Confirm Flash to start the process.
Step 7: Once the installation is completed, go back to main recovery menu and reboot your Xperia Z3.
That’s it. Now you should have Xperia Z3 D6603 rooted on Android 5.0.2 23.1.A.0.726 firmware. If you have any question, let us know in comments section below.