You didn't answer me.. Anyway I installed the program but I didn't do a Backup NAND,simply because I don't know how. then after installation I press & hold reset and it loaded but when I press systen menue Hacks it said There's no hacks.ini found in NAND !! I checked my SD card again the file is there in the root with the name hacks.ini and it's of 4.2U which is my system !! Please let me how to fix that,thanks for your effort and time..