If your voltage drops below 12.5V during a coding process, or below 13.0V during a flash process, the module will freeze and reject communication.

: E-Sys 3.36.2 recognizes "Secure Coding" ECUs found in newer models, often marking them with purple text to indicate they require specialized tokens or certificates to modify. Hardware Requirements

That said, for professional workshops that need to program the newest BMW models or work with the latest PSdZData, moving to a newer E‑Sys version (e.g., 24.06) is advisable. The combination of a recent E‑Sys with the corresponding PSdZData offers the fullest feature set and fewest compatibility surprises.