My experience with rom upgrading teach that: each phone are different and every change can brick it all!
FIRST: do everything a backup (better with SP_Flash_Tool_v3.1316.0.150) if you don't doit when you got a working phone
SECOND: don't mix recovery and pacth, when you try and doesn't work, restore a working rom and restart
if you are in third state download this:
http://xdaforums.com/showthread.php?t=2430698
it's in chinese but with this guide you can understand, download the rom you want to try and flash with this
When you got a working rom return to point FIRST
ps: i've got a backup of my phone but it's 2,83 Gb! If you have a brick i can do a torrent....
I'm looking for a ROM update for NEKEN N6 MTK6589t with working GPS, someone have tried a kit kat for mtk?