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Hi.
We know all (or not) about these security features and we are sure that the sensitive data on the cards are read only. We don't know which data used for open a door. Bu we know that we are using the UID of the Card to identify the user who wants to raise his credit für printing ... at least until today. Now, the Reader of the pay terminal reads a wrong value that does not correspond with the entry in our database. He shoud read a 804CC0227D4204(hex), but reads 22C40EFD (hex).
So we have to raise up their credits manually, which takes a lot time.
Thanks for all your help and patience.
Andreas
We know all (or not) about these security features and we are sure that the sensitive data on the cards are read only. We don't know which data used for open a door. Bu we know that we are using the UID of the Card to identify the user who wants to raise his credit für printing ... at least until today. Now, the Reader of the pay terminal reads a wrong value that does not correspond with the entry in our database. He shoud read a 804CC0227D4204(hex), but reads 22C40EFD (hex).
So we have to raise up their credits manually, which takes a lot time.
Thanks for all your help and patience.
Andreas
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