Request DELL Inspiron 15R 5521 unlock hidden features

Hi to all,
Can you please to unlock advanced menu to config my graphic cards .
it is better if you can unlock all hidden features in this bios.

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Motherboard Manufacturer and Model : DELL Inspiron 15R 5521
-Bios Revision : A06
-Bios Type : Insyde
-Bios Link : Dell Inspiron 5521 System BIOS

Best Regards,,