For future reference keep in mind that we do not recommend doing a BIOS update unless you are actually having an issue with your system.
Regrading the fact that you are unabel to access the BIOS of your system, I would recommend doing a BIOS update by the BIOS recovery method as instructed at:
If that does not help try doing a CMOS clear as instructed at:
If the issue continues, then try accessing the BIOS by the maintenance mode, wich means moving the BIOS jumper to position 2-3 and then booting up the system.
You can find the BIOS jumper as showing at: