Hello, i'm new here. And I was thinkig if someone cloud help me with this. I want to unlock my bios hidden functions. hxxp:// global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_Acer_2.13_A_A.zip?acerid=634399839716882607&Step1=Notebook&Step2=Aspire&Step3=Aspire%205551&OS=722&LC=pt&BC=Acer&SC=PA_3 EFI boot is the main objective. Thanks anyway filipius and sorry for the poor english.