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π₯ What is ATR? π₯
ATR is the serial number of the card. When a POS and ATM reads a card:
π It reads first ATR[1] [2] and
π Select Applet in the Card.
π ATM Manuals (Google around for "How chip & pin works")
π EMV Specifications (www.emvco.com).
π₯ What causes SmartCard rejection? π₯
There is immediate rejection when:
π It cannot select the Mag Stripe
π It cannot read correct ATR.
π It cannot select the Chip's Applet and
π It cannot read the Chip Applet's Track 2 data.
Look Proof Video :
https://emvsoftware.xyz