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how to unlock bios lenovo l430 bypass hardware security. Example: In my bios is present a supervisor password, this will disable by touch with screwdriver 2 pin (SDA and SCL) but I don’t know when is situated the chipset bios and which pin I touch with screwdriver. Sorry but I don’t speak english well.

I see this Lenovo is a laptop. To clear the password there are a few programs that you build on a dvd and run on boot to clear it. I think it is easier to remove the keyboard and pull the real time clock battery. Leave off for a couple of minutes then reinstall the battery. Google to find the maintenance manual as it has all the info you need to do this. Good luck