I'm sorry but how can pressing the correct "F2" button and computer refusing to go into BIOS be a lack of knowledge?
Off course it is then a hardware issue of some sort.
don't think anybody implied interchanging bootsector and BIOS. We all know the difference between the two.
I am well aware that the code from the BIOS is what is actually loaded and then searches for an OS to load from the bootsector of the boot drive assigned in BIOS.
If the key press is doing nothing it can very well be a faulty keyboard / key or port, why i suggested him to eliminate this first.