UNLOCK lenovo m30-70 Bios (insyde 3.73)

hi everybody , here's the download link of my bios from lenovo website :

http://support.lenovo.com/it/it/downloads/ds101228

is ther anybody that could tell me how to unlock my bios, or give me an unlocked one to flash?

thank you guys, ur forum is really helpful Image may be NSFW.
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