Water IC card to modify data - Theory articles
note:
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Need to hex conversion
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IC card reading and writing required software
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Prepare an IC card
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First, open the software reads the IC card, IC card reading before and after consumption (used for comparison purposes)
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M1 card program using crack
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Contrast: I have found there are differences within this card
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After the first 16 by binary conversion, find contact data has nothing to do, then flipped come to the actual situation, to know how much money the water Cary
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Checksum verification: The inverted check code converted to binary, and then take the remainder converted to binary decimal, we have found out the check code and data consistency money
pending upgrade…
