Hello! I've just bought an Dell Vostro 360 BTS All In One Desktop Computer. Current bios is A06 from Dell This AIO Computer has an Geforce GT 525M inbuild. I have seen many people using a vbios mod to update the 525M to an 540M or 550M by undervolting. I have been told that it's not possible on my bios, because the vbios is protected by EFI. Any chance to unlock or modify this? Thanks a lot!