You're question does not make sense.
DJMAZA
driver
A Mac's "BIOS" is not really a BIOS. It is OpenFirmware, which many Mac users find to be better than BIOS. To access OpenFirmware, you must use two hands on the keyboard and the key combination CMD-OPT-O-F.
The delete key is also used to access bios on some systems.
By pressing certain keys (depending on the specific computer and BIOS program) during the boot process, ex: F12, F2, F8,
FN + F1 > together
In the BIOS setup program.
The BIOS Manufacter
try to press alt f10
Assuming you mean "flash the CMOS", when the CMOS settings are so messed up, you cannot access the BIOS.
how du i unlock tuch mat tab to screen lock
The Del key