Sepam relays with firmware version 3.0 or higher (introduced around 2010) disabled generic software-based codes. For these units, you need to generate a code using the SFT2841 KeyGen utility (available only to Schneider Electric partners) or request it via a support ticket. The generation algorithm uses:
If you are using SFT2841 version 16.0 or later (now rebranded as part of EcoStruxure), the legacy code sft2841 120 may have been deprecated. Use the built-in "Request authorization via email" function instead.
While you might find "keygens" or "cracks" for SFT2841 online, do not use them.
