Which (padlock, cylinder/drive, or user icon) you see on screen.
Removing the coin-cell battery will not clear a Supervisor Password. It will only reset the system clock and trigger a date/time error, potentially making the laptop unbootable until fixed. Verified Method 1: The Official Lenovo Solution lenovo t470 bios password reset verified
Connect the SOIC8 clip to the chip and use software like NeoProgrammer or ASProgrammer to read the data. Which (padlock, cylinder/drive, or user icon) you see
Prompts immediately after pressing the power button. It prevents unauthorized booting into the operating system. lenovo t470 bios password reset verified