Sony Xperia Z Ultra C6802

firmware for xperia z ultra :

to download xperia z ultra android 5.1.1 click her 

to download xperia z ultra android 5.0.2 click her 

to download xperia z ultra android 4.4.4 click her

after you download the firmware change .rar or .zip to .ftf

flashtool for xpria z ultra :

to download flashtool for windows click her