From 7376da5c44ac5d33c3515730f7213a64d51d696a Mon Sep 17 00:00:00 2001 From: merlokk Date: Wed, 1 Nov 2017 18:22:03 +0200 Subject: [PATCH 1/1] revert SAK check --- armsrc/iso14443a.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c index 7d484015..33db9f22 100644 --- a/armsrc/iso14443a.c +++ b/armsrc/iso14443a.c @@ -1820,9 +1820,8 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u p_hi14a_card->sak = sak; } - // non iso14443a compliant tag - // https://www.nxp.com/docs/en/application-note/AN10834.pdf page 7 - if( (sak & 0x20) != 0) return 2; + // PICC compilant with iso14443a-4 ---> (SAK & 0x20 != 0) + if( (sak & 0x20) == 0) return 2; if (!no_rats) { // Request for answer to select -- 2.39.5