: Inserting a blank or newly formatted Micro Memory Card (MMC) into the PLC and cycling the power can also force a wipe of the internal memory. 2. Password Recovery (Retrieving the Code)
The Siemens S7-300 family is currently entering its final lifecycle phase. Siemens announced a starting October 2023, with discontinuation (PM410) scheduled for October 2025. Users are encouraged to migrate to newer systems like the S7-1500, which offers enhanced security and modern password recovery options.
: Many sites offering "exclusive" PLC unlockers are hubs for scam software. Experts recommend never paying for these tools on untrusted sites. The Official Alternative
: Use a standard card reader and WinHex to create a raw sector-by-sector image of the Siemens Micro Memory Card (MMC).
solution if the project is password protected - Siemens SiePortal