Xperia Z Ultra
Xperia Z Ultra Sony

If you are looking for a pre-rooted Android Lollipop stock firmware for your Xperia Z Ultra, then senior XDA member pTeronaut, has the perfect solution for this. The member has shared a pre-rooted stock firmware build 14.5.A.0.270 based on Android 5.0.2 Lollipop. It is rooted using Chainfire's SuperSU v2.46 and has TWRP recovery installed.

The pre-rooted firmware in use is US generic and works both on locked and unlocked bootloaders.

Check out the guide below if you want to manually update your Xperia Z Ultra to Android 5.0.2 stock pre-rooted firmware. Keep in mind that you should have a C6806 model, as this is not compatible with any other model. Also do not forget to keep a backup of the data of your phone.

Download files

Pre-rooted Android 5.0.2 (14.5.A.0.270)

File name: (Alternate link)

XZ Dual

Click on this link. Click on the tab for XZDualRecovery by renowned developer, Nut, then click XZDualRecovery 2.8.15, then locate the file named Click on it and install the file.

Update Xperia Z Ultra with pre-rooted Android 5.0.2 (14.5.A.0.270) stock firmware and TWRP recovery

Step-1: Download and install ADB on your Windows PC

Step-2: Download and install Sony drivers

Step-3: Enable USB debugging on your phone

  • Go to Settings>> About phone>> tap build number 7 times
  • Go to Settings again and scroll down to Developer options, tap on it
  • Locate USB debugging and tap on the checkbox to enable it

Step-4: Connect your Xperia Z Ultra to the PC. A pop up will appear on the phone asking permission for USB Debugging. Select always allow then OK

Step-5: Move the pre-rooted firmware file to the phone's storage and remember the location

Step-6: Install XZDualRecovery. You don't need to unlock the bootloader, as this works on both locked and unlocked models.

  • Extract using software like 7-zip
  • Double click on the install.bat file, which will install the recovery on Z Ultra
  • Your phone will now reboot when the recovery is installed

Note: You may skip this step if you already have TWRP and CWM recovery.

Step-7: Perform wiping task. From the TWRP recovery, select Wipe then Advanced wipe then select Dalvik cache, System, Data and Cache. Do a swipe on Swipe to wipe button

Step-8: Return to the main recovery and select Install, locate the pre-rooted firmware which you have copied on the phone. Select it and confirm installation

Step-9: When the installation is completed, select Reboot

Your Xperia Z Ultra should now be running the latest Android Lollipop firmware that is rooted and TWRP recovery installed.

Source: AndroidSoul