Bios Mods -The Best BIOS Update and Modification Source

Hi,everyone.My laptop is ASUS N56vm.I want to unlock the bios to use xtu ,and every time I changed it by amibcp4.53 it couldn't be flashed and show that everything is unknown.If someone could help me to deal with it or change it for me,think you very much and forgive my badenglish.

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Is somebody here?

somebody here？