Required:

- Flashtool in the latest version from: http://flashtool.net
- DualRecovery by NUT as installer.zip: http://nut.xperia-files.com (Download the correct one for your device and at least version 2.8.1+!)
- Root on 23.0.A.2.93 (Download) for example with this method: http://forum.xda-developers.com/cros...-4322-t3011598

Featurelist:
- SuperSU integrated
- DualRecovery by NUT integrated (2.8.1)

Can be used on locked and unlocked bootloader.

Firmware Files:
D5803 and D5833
- Flashable.zip's and FTF files in folders - sorted by devices


The Flashable.zip i've created with the mighty tool PRFCreator by zxz0O0.


Installation/Update (short) guide:

0. Downgrade to the firmware 23.0.A.2.93 and root it (with giefroot)
0.1. Install the LockedDualRecovery by NUT with the installer.zip (install.bat)
1. Put the downloaded update file (ROM.zip) on your device. I recommend you to put it directly on the device.
2. Boot into the recovery (While rebooting -> when the info LED flashs -> press shortly the VOL button for the Recovery you prefer)
(On Recovery you may create a twrp/cwm backup of your device if you get any issues on updating process!)
3. Flash the ROM update file (.zip) with "install zip".
4. Wipe cache and dalvik cache (perhaps under advanced).
5. Reboot to system.

You may have to wait some minutes on the first boot because of initializing system for first time (optimizing apps etc.).



http://forum.xda-developers.com/z3-c...neric-t3012378