How do I unlock my BIOS?

I've got this laptop and I was trying to tweak some BIOS settings, but the damn thing is password protected.
Tried a few different workarounds myself, but nothing worked. If anyone actually knows a reliable way to bypass this, I’d appreciate the help.

You might want to try opening up your laptop and just pulling the battery off the motherboard—let it sit for a few seconds before you pop it back in—and honestly, that might just do the trick.

If you want a method that actually works, you'll need to tell me which laptop model you're using.

The laptop is an HP ProBook 4720s

The battery is tucked away in such an awkward spot that I’d practically have to gut the entire thing... even the screen