How to remove bios password?

Doesn't look good for this model, according to the manual on page 46 (https://www.lenovo.com/shop/americas/con...):

"If you forget your administrator password, a Lenovo

authorized servicer cannot reset your password. You

must take your computer to a Lenovo authorized

servicer or a marketing representative to have the

system board replaced. Proof of purchase is required,

and a fee will be charged for parts and service."

You can try to disassemble the laptop and remove the small cell battery on the motherboard, but not all laptops have password reset options anymore these days.