[REQUEST] Unlocked mod bios Acer Aspire 5253-Bz423

Hi everyone, i need some help with a mod bios for my laptop for OverClocking!

An i also want to fully unlock the whole bios if is possible please, advance menus, etc..
I have been looking in many sites but i got no answer

This is the last BIOS: http://global-download.acer.com/GDFiles/...SC=EMEA_11

Mainboard: aspire 5253.
SLIC: v2.1 ACRSYS
RW-report (if it helps):https://www.dropbox.com/s/7ycq5olizcn3zpm/AcpiTbls.rw

If you need anything else juste tell me please!

Hope somebody answer and help me!

Thanks in advance for your help and your work!