[QUOTE=512a;5048816]@ihpwf12 and @s15 thanks brothers solved it just only by flashing stock firmware using Odin ,
,, I was just worried coz read something similar on Web and thought I lost my internal partition permanently , but thanks to samsung for their such support to their devices
, unlike LG, I know it wasn't LG company's fault that I got wrong g2 but their download mode needs a bit of programming skills that I didn't get , don't know why they just don't follow samsung ??? , beside that regarding my bricked g2, I tried it to recover and found that it stucked in fast boot, the flashing of wrong recovery somehow effects the screen and it got damaged , then used another old screen from a repair shop that was also faulty but got that for free , so I tried to recover via adb but due to my poor programming skills I failed and sold that g2 to a shopkeeper at the price of penny (rs2000)
however unfortunately never tried Linux to connect the phone coz whenever I connected the phone to pc the malfunction error used to arise , my little brother few days back told me that may be in Linux that device can be recovered but sadly the device is gone , 