The most straightforward and safe method to reset a BIOS password is to contact Panasonic's official support. They can guide you through the process, which might involve proof of ownership and could potentially replace the BIOS chip or provide a reset procedure.
Press and hold the for 30–60 seconds to drain any remaining electricity from the motherboard. Reconnect power and try to access the BIOS. CMOS Battery Removal: panasonic cf53 bios password reset free