Having the files is not enough. You must place them in the exact directory structure E-Sys expects.
The most critical aspect of this "download work" is understanding the distinction between the two available versions of the database. v42720 psdzdata lite download work
PSdZData Lite is a reduced version of the full PSdZData used with BMW E-Sys. It contains only the necessary CAFD (coding) files and SVT (software version) data for most coding tasks — without the large flash (update) data. Version v.4.27.20 corresponds to a specific ISTA / firmware release level. Having the files is not enough
Why v42720? This version is a "golden" build. It supports G-series (G20, G30 LCI, G05, G07, G80) and late F-series while remaining stable. Newer versions (v4.35+) introduce stricter security keys (SLA) that break compatibility with cheap ENET cables. PSdZData Lite is a reduced version of the