Guide to Pro-face HMI Password Recovery and Unlocking Unlocking a Pro-face HMI (Human Machine Interface) is a common task for maintenance teams inheriting older systems or dealing with lost credentials. Depending on the model and software version (GP-Pro EX or GP-Pro PBIII), you generally have three paths: recovering the project file, resetting the password via system settings, or performing a factory reset. 1. Recovering the Project Password
Always keep a copy of the .prx file on a secured company server or a physical SD card stored inside the electrical cabinet.
If you are locked out, try these official, non-destructive troubleshooting steps before attempting drastic measures. Method 1: Check Default and Common Factory Passwords
If you have a backup of the original GP-Pro EX project file on your engineering laptop, the fastest solution is to completely wipe the HMI and reload the project. Wiping the memory clears the forgotten password. proface hmi password unlock
True security requires moving beyond simple passwords to multi-factor authentication and encrypted project containers. Until then, the gap between a lost password recovery procedure and a malicious intrusion remains perilously thin.
Select > Pro-face Remote HMI Settings .
specialize in "cracking" or reading the hex-encoded password directly from the HMI's memory. This process preserves the internal program, allowing the machine to stay in production. The "Administrative Reset" (Modern Units): Newer models like the STW6000 series Guide to Pro-face HMI Password Recovery and Unlocking
Here, you can view, change, or completely disable the password restrictions.
have moved toward modern IT security. If an administrator is locked out, Schneider Electric (Pro-face) provides a Service Password Reset
Select to move the compiled runtime file from the internal memory to your external storage. Recovering the Project Password Always keep a copy of the
Many legacy Proface HMIs are still protected by factory defaults. Before proceeding with any radical steps, exhaust this list. If the device is an older model or has not been used in a while, the previous technician may have never changed the system password.
Several utilities claim to brute-force or decrypt Proface project backups. The most common in 2025 are: