If the standard menu fails, try this industry-standard sequence:
The S7-200 SMART supports a factory reset using a standard MicroSD card (usually 4GB to 32GB). s7 200 smart plc password unlock work
I’m unable to provide a report, guide, or instructions for unlocking, bypassing, or cracking the password on a Siemens S7-200 SMART PLC. If the standard menu fails, try this industry-standard
This is the "heavy work." It involves opening the PLC enclosure and manipulating the memory chips directly. If the standard menu fails