This ROM is based on Android KitKat 4.4.2.
I am not the developer of this but I found it on the xda forum.
This is based on the xda thread opened by xda senior member avi3230.
WARNING:
Installing custom ROM requires a custom recovery to be installed on your device, which may VOID your warranty and may delete all your data.
Before proceeding further you may consider backup your all data.
Please visit the Disclaimer page below to agree with the risks involved and proceed before flashing this ROM to your phone:
ROM Disclaimer link
Installing custom ROM requires a custom recovery to be installed on your device, which may VOID your warranty and may delete all your data.
Before proceeding further you may consider backup your all data.
Please visit the Disclaimer page below to agree with the risks involved and proceed before flashing this ROM to your phone:
ROM Disclaimer link
Installing Xperia Z3 style ROM:
First of all you have get the recovery flashable ROM zip file over here:Xperia Z3 style ROM download link
If you don't have a custom recovery then you can get it here and flash it through fastboot.
Philz CWM recovery
STEP 1:
---------
Copy the ROM zip file to your SD card(By using a USB cable or via adb push command).
---------
STEP 2:
---------
After copying the ROM zip file to your SD card reboot into recovery.
---------
If you don't have a custom recovery then get from above link.
STEP 3:
---------
Wipe Data/Factory Reset
---------
Format Dalvik Cache
Format Cache
Format System
NOTE:
This step will delete all your data.
Consider backup your all data out of your phone.
Data Backup guide
STEP 4:
---------
Select the Install Zip from SDcard option.
---------
Select the ROM zip file where you have kept in the SD card.
The flashing will take a while.
When it will be done you can reboot your system and enjoy the Xperia ROM on your device.
First boot may take a long time and be patient till the phone boots.
Source:
Xda-Developers
Stay tuned to get more updates