K so what I did so far and evry thing is running awesome ( so far , fingers crossed ) :
I formated my internal SD ( Just cause it makes me feel good )
I used one click odin back to JF6
I flashed JH7 with odin , no pit no repartition.
Installed [TOOL] Unleash The Beast V0.2
and then Tayutama's EXT2 lag fix