Originally Posted by nidfix
Thank you for your response !
If there is no relationship at all with PSdZData files , why is it required for people that used in the past E-Sys 3.18.4 and simply upgraded their files to 48.3 ?
What I am saying is that typically when new PSdZData comes out, you just update your PSdZData, as we have all done many times over the last year. This will continue as usual, until your Token validity expires. However, if at some future time during your year of validity, BMW changes the security measures, well yes, of course an updated patch / token will be required.