If the short method fails (or you accidentally short the wrong pins and brick the board), you have one final option.
Buy a pre-programmed BIOS chip.
When you install the new chip, the system will have a completely clean BIOS with no password. You will need to input the machine's serial number (on the sticker on the case) using a tool like AMIDEWINx64.exe to restore full functionality. lenovo thinkcentre m720q bios password reset
If you bought the M720q used, message the seller. Professional resellers usually disable the password before shipping, but sometimes they forget. They may have the master code. If the short method fails (or you accidentally
