⌘Ctrlk
Download the correct firmware file for your specific PLC article number from the Siemens Support Site. Copy the .upd file to the root of a Siemens Memory Card.
Most tools advertised with such generic "top unlock" phrasing are often third-party "cracks" that may carry significant risks, including malware or potential damage to your PLC's firmware. Standard Methods for Unlocking S7-1200 s71200 password unlock top