Siemens Mmc Card Format Tool ((link))
If a card has already been accidentally formatted in Windows, Siemens officially considers it non-recoverable. However, the automation community has developed unofficial workarounds:
If you'd like to troubleshoot a (such as a blinking "STOP" LED) or need a guide for backing up the card image before formatting, just let me know. To help you further: Are you working with an S7-300, S7-1200, or S7-1500 system? siemens mmc card format tool
, you can format the card directly in the dedicated MMC slot. Critical Warnings Do Not Use Windows Tools If a card has already been accidentally formatted












