However, the most authoritative "solid paper" and technical deep-dive on this specific topic is: Key Technical Resource "Breaking Siemens SIMATIC S7 PLC Protection Mechanism" by Gao Jian (GEWU Lab). : This was presented at the Hack In The Box (HITB) Security Conference
The hash is either decrypted or compared against rainbow tables to reveal the original password. 2. Password Overwrite (Resetting) s7 200 smart plc password unlock work
No risk of bricking the PLC. Maintains warranty. Cons: Slow (days/weeks). Requires documentation you may not have. However, the most authoritative "solid paper" and technical
Do you need the specific to perform a hard factory reset, or are you trying to recover the program without deleting it? S7 200 Smart Configuration - SiePortal - Siemens s7 200 smart plc password unlock work