Install Android 5.0 Lollipop based CM12 Xperia Z3 Custom ROM

Install Android 5.0 Lollipop based CM12 Xperia Z3 Custom ROM: Being a proud owner of Sony Xperia Z3, this is certainly good news for you that the most popular CyanogenMod 12 (CM12) ROM with Android 5. Lollipop update is released by the diligent custom ROM developers for Sony smartphones. Here we’ve a step by step guide that how to install CM12 Xperia Z3 Custom ROM. As you may already know that the CM12 is typically one of the most stable custom ROM. So if you are interested then follow the given instructions carefully to install the Android 5.0 based CM12 Xperia Z3 custom ROM.

Note: Please note that this guide is only working on Sony Xperia Z3, do not apply this guide on any other model. You can check the model number of your device by navigating to Settings → About Phone.


Warning:- will not be held responsible if anything goes wrong to your Xperia Z3 during the updating process. Proceed at your risk.


  • Backup your all important data before starting the firmware installation process.
  • Download and install the appropriate USB Drivers on your PC from here
  • Enable USB debugging on your device by going to Settings → Developer Options.
  • Make sure that the battery level of your Xperia Z3 must be about 80% to avoid shutdowns during the firmware installation process.

Downloads Required Files:

Download CyanogenMod 12 Android 5.0 Lollipop ROM for Xperia Z3

Download Google Apps

Steps to Update Android 5.0 Lollipop CM12 Xperia Z3 Custom ROM :

1: – First, extract the CM12 Android 5.0 ROM and Google Apps on the desktop of your PC, that you have already downloaded from the above links. After extracting these .zip files, you’ll get the boot.img files separately.

2: – Now connect the Xperia Z3 USB mass storage with PC through its USB data cable.

3: – Transfer Android 5.0 ROM and Google Apps .zip files to the root folder of your Z3 microSD card.

4: – Next, move the boot.img file to the directory named Android-SDK-windowsplatform-tools.

5: – Switch Off your Xperia Z3 and boot it into the Bootloader Mode by pressing and holding Volume Up while reconnecting with USB cable. The LED of your device will turn blue.

6: – Goto to android-sdk-windowsplatform-tools directory once your device enters into Bootloader / Fastboot mode. Open the command prompt and type this command:

fastboot flash boot boot.img

7: – Now enter the following command:

fastboot reboot

8: – This time put the Z3 into Recovery Mode. To do, first Turn it Off and then Turn On your device while tapping Volume Up or Volume Down buttons for several times until the LED light turns pink or any other colour.

9: – While your device is now in CWM Recovery, wipe full data by choosing “wipe data/factory reset” option.

  • Use Power button to select options
  • Volume buttons to navigate up or down in Recovery Mode.

10: – dalvik- After that, perform a cache wipe by selecting “wipe cache partition” andDalvikcache wipe to prevent boot loops etc.

  • CWM Recovery → Advanced → “wipe dalvik cache”

11:- Go back to the Main Recovery Menu → “install zip from SD card”

12: – Finally choose “choose zip from sdcard”. Select the Android 5.0 ROM .zip from microSD card by pressing Power button. Confirm the installation to start.

How To Install Google Apps [GApps]: Repeat the above step to install Gapps on the Z3.

13: – After completing the GApps installation, just goto “+++++Go Back+++++” now restart the device by going to:

  • Recovery Menu →reboot system now

The Xperia Z3 might take some time about 4 to 5 minutes for the first boot to complete.

Done! You’ve installed Android 5.0 Lollipop CM12 Xperia Z3 Custom ROM. Let us know in the comments section below if there is any query or problem in the above steps.

[Source: Team Android]

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