What is the technical cause of the bank card problems of 2010 in Germany?

This was in the news (1) (2) , but there were no technical explanations, in addition, this is a software error on the chip.

Is there any further information on what this error is? One-time mistake, some quantity conversion problem or ...?

EDIT: Apparently, the error can be fixed by modifying the terminal software. I would be happy to know how to do this.

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SMS, Windows. , , 2016 . , , BCD .

BCD 10 16 10

, - .

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Source: https://habr.com/ru/post/1727457/


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