Various third-party software and hardware tools exist for Fatek password cracking. Some are sold as stand-alone password readers, while others are offered as a remote service by automation companies.
The PLC boots with no password. This works on 90% of Fatek FBs and B1 series.
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This is the most reliable way to obtain the original password or an unprotected backup project file.
Always sandbox in a virtual machine (VMware/VirtualBox) with no network access. Various third-party software and hardware tools exist for
Forcing a password bypass can accidentally corrupt parts of the running ladder logic, causing dangerous, unpredictable physical movements of the machinery.
: Some software claims to unlock Main/ID passwords for FBs series PLCs (up to version V5.83) in seconds. This works on 90% of Fatek FBs and B1 series
Once the PLC is completely blanked factory-fresh, open your offline backup file.