[Request] Samsung R520 BIOS Unlock

Hello together,

is it possible to unlock my BIOS for my old Samsung R520 (hidden menue etc.)? I found only dead links and it would be very helpful for me

-Manufacturer: Samsung
-Type: Laptop
-Model: Samsung R520

-Bios version: 07LL (R520-R522-R620)
-Bios Vendor: Phoenix Technologies Ltd.
-Bios Type: Phoenix BIOS /ACPI 2.0
-Bios Download Link: http://www.samsung.com/uk/support/model/NP-R520-FA04UK

-Bios Direct Link: http://org.downloadcenter.samsung.com/do...0_07LL.exe


Thanks in advance