You won’t get access to the BIOS by solely pressing F2 every now and then. It’s a bit more complicated for this particular model.
- Hold the F2 button down while the laptop is still turned off
- Press the power button while staying on the F2 button
- You should now see the BIOS
If this doesn’t work, try attaching a USB keyboard and go from there. Sometimes it doesn’t work with the internal keyboard.