--- libnfc/chips/pn53x.c.org	2014-02-24 15:16:47.000000000 +0000
+++ libnfc/chips/pn53x.c	2016-04-07 04:22:31.271693922 +0000
@@ -38,6 +38,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include "nfc/nfc.h"
 #include "nfc-internal.h"
@@ -749,6 +750,7 @@
   uint8_t  abtFw[4];
   size_t  szFwLen = sizeof(abtFw);
   int res = 0;
+  usleep(1*1000);
   if ((res = pn53x_transceive(pnd, abtCmd, sizeof(abtCmd), abtFw, szFwLen, -1)) < 0) {
     return res;
   }