From ee63e0bc2d9261384eea29d454edabfab090aece Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Sat, 28 Mar 2026 12:17:59 +0700
Subject: [PATCH] improve text output in hf iclass tear

---
 armsrc/iclass.c          | 3 +++
 client/src/cmdhficlass.c | 8 +++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/armsrc/iclass.c b/armsrc/iclass.c
index 75d4db893..8a894ee5f 100644
--- a/armsrc/iclass.c
+++ b/armsrc/iclass.c
@@ -944,6 +944,9 @@ int do_iclass_simulation(int simulationMode, uint8_t *reader_mac_buf) {
             goto send;
 
         } else if (cmd == ICLASS_CMD_DETECT) { // 0x0F
+            // if EAS byte in config block,   (normally 0xFF,  but 0x7F)
+            //    MSB = 1  ,  don't answe with CSN
+            //    MSB = 0  == enabled ,  answer with CSN
             // not supported yet, ignore
 //        } else if (cmd == 0x26 && len == 5) {
             // standard ISO15693 INVENTORY command. Ignore.
diff --git a/client/src/cmdhficlass.c b/client/src/cmdhficlass.c
index 7e790c1e5..3d4de6a58 100644
--- a/client/src/cmdhficlass.c
+++ b/client/src/cmdhficlass.c
@@ -4215,7 +4215,13 @@ static int CmdHFiClass_TearBlock(const char *Cmd) {
                         for (int i = 7; i >= 0; --i) {
                             int bit1 = (data_read_orig[7] >> i) & 1;
                             int bit2 = (data_read[7] >> i) & 1;
-                            PrintAndLogEx(INFO, "%-11s %-10d %-10d", flag_names[i], bit1, bit2);
+
+                            // if bit flipped,  mark it with color
+                            if (bit1 != bit2) {
+                                PrintAndLogEx(SUCCESS, "%-11s %-10d " _GREEN_("%-10d"), flag_names[i], bit1, bit2);
+                            } else {
+                                PrintAndLogEx(INFO, "%-11s %-10d %-10d", flag_names[i], bit1, bit2);
+                            }
                         }
 
                         isok = PM3_SUCCESS;