Default [Q] LG P970 internal memory problem

I Know this doesnt normarly happen to phones but my lg p 970 seems to have lost all the internal memory with nothing installed on it ,
i flashed into recovery wiped everything even the dalvik cache and nothing , But everything is okay , it can boot but on the next reboot, its like it was reseted everytime in switch it on.

I dunno if this is a hard ware problem , or software , plliiizzz somebody help me ...any ideas r welcome.