DESCRIPTION

Full stock, official firmware, multilanguage (f.e. added polish)

Changelog unknown but it works lot faster than 130701.

(also can be rooted with framaroot)

flashing

first of all, you need MediaTek Vcom driver

https://www.dropbox.com/s/y0pp1lsh3pgio4c/Driver%20mtk6589.zip

installation http://forum.xda-developers.com/showthread.php?t=2206421

( after install and connect phone it will self disconnect after ~3sec, it's the right behavior, SP Flash Tool will keep it connected) 

next, flashing with SP Flash Tool 

https://www.dropbox.com/s/xmx2j0e2zgbe1j0/SP_Flash_Tool_v3.1304.0.119.rar

http://forum.xda-developers.com/showthread.php?t=1982587

open SP F.T. (better with administrator rights, just for sure )

select Scatter-Loading;  MT6589_Android_scatter_emmc.txt in firmware folder 

everything should appear, all checked, just be shure everything will flash from right folder 

(sudoeste from XDA suggested to uncheck preloader as wrong flashing of it may cause a nasty brick)

turn off phone, remove batter for few sec, DON'T turn it on

press DOWNLOAD in SP F.T. and connect phone with USB cable, 

if everything goes right green circle will appear with "Download OK"

Rooting

Download framaroot apk from xda

http://forum.xda-developers.com/showthread.php?t=2130276

add it to SD Card and install like any other aplication, open and root with SuperSu, Boromir exploit  

(may not work at first try) 

im not responsible for any possible damage

i flashed 130701 -> 130711 and everything's ok, dual camera works.

※Please make a backup of your device before installing or updating ROM