Bios Mods -The Best BIOS Update and Modification Source

i need moded or unlocked bios for my dell latitude e5520 that allows advanced options and overclocking also if possible a custom logo
here is the bios link
here is the link
http://www.mediafire.com/file/c7d0a1hq3z...4.exe/file
Thanks 
Joseph

Hi I have a Dell latitude E5520 I would like a custom bios that allows me to change more options for example the onboard graphics or overclocking/advanced options

Here Is the Virus Total of the enclosed Bios File
Virus Total:
https://www.virustotal.com/gui/file/29f8.../detection
Bios Exe
https://www.mediafire.com/file/bkzamqo77...4.exe/file
Bios Extract:
https://www.mediafire.com/file/gkrxh0pst...d.zip/file