[Root] 5.1.1 Lollipop Xperia Z Ultra C6833 14.6.A.0.368 Customized DE

** DISCLAIMER: I AM NOT A DEVELOPER. I DO THIS AS A HOBBY AND SHARE MY FINDINGS IN CASE SOMEONE ELSE FINDS THEM USEFUL. **
** THIS WORKED ON MY DEVICE BUT IT MAY NOT WORK ON YOURS. APPLY AT YOUR OWN RISK **

Requirements:

Flashtool 0.9.18.0. Important: Do not use Flashtool 0.9.19.0.
Rooted XZU on Android version 5.0.2 with custom recovery installed.

This works on locked or unlocked bootloaders and any customization.

Download link:
My Mega account just broke down. I'll upload new links in the next few hours.
Mega
https://mega.co.nz

Instructions for upgrading without root:

1- Back up your internal SDCARD and your apps.
2- Download C6833_14.6.A.0.368_customized_DE.ftf
3- Open Flashtool 0.9.18.0 and click on the flash icon. Choose flash mode.
4- Navigate to where you saved C6833_14.6.A.0.368_customized_DE.ftf and flash this ftf with your phone in flash mode. I recommend wiping apps and cache and data. To put your phone in flash mode, hold the volume down button when it is off and connect with the USB cable to the PC.
5- Reboot.

Instructions for upgrading with root:

1- Back up your internal SDCARD and your apps.
2- Download C6833_14.6.A.0.368_customized_DE.ftf and 5.1.1_system.zip.
3- Copy 5.1.1_system.zip to your phone's internal SDcard.
4- Reboot to recovery and install this file.
5- Turn the phone off.
6- Open Flashtool 0.9.18.0 and click on the flash icon. Choose flash mode.
7- Navigate to where you saved C6833_14.6.A.0.368_customized_DE.ftf. Exclude system partition and flash this ftf with your phone in flash mode. I recommend wiping apps and cache and data. To put your phone in flash mode, hold the volume down button when it is off and connect with the USB cable to the PC.
8- Reboot.