Siemens S7-1500 Password Reset -

Format a blank SIMATIC MC card as described in Method 2. Using the SIMATIC Memory Card Utility , write the .upd file to the card as a “Firmware Update Card.”

Option 2: Factory Reset via TIA Portal (If Connection is Possible) siemens s7-1500 password reset

: Select the checkbox "Delete password for protection of confidential PLC configuration data" to remove the security password. Format a blank SIMATIC MC card as described in Method 2