diff --git a/armsrc/iso15693.c b/armsrc/iso15693.c
index 5861b3d17..9fabe1d18 100644
--- a/armsrc/iso15693.c
+++ b/armsrc/iso15693.c
@@ -104,10 +104,12 @@
 #define ISO15693_MAX_COMMAND_LENGTH      45 // allows write single block with the maximum block size of 256bits. Write multiple blocks not supported yet
 
 // 32 + 2 crc + 1
-#define ISO15_MAX_FRAME 35
-#define CMD_ID_RESP     5
-#define CMD_READ_RESP   13
-#define CMD_INV_RESP    12
+#define ISO15_MAX_FRAME     35
+#define CMD_ID_RESP         5
+#define CMD_READ_RESP       13
+#define CMD_INV_RESP        12
+#define CMD_SYSINFO_RESP    17
+#define CMD_READBLOCK_RESP  7
 
 //#define Crc(data, len)        Crc(CRC_15693, (data), (len))
 #define CheckCrc15(data, len)   check_crc(CRC_15693, (data), (len))
@@ -1679,27 +1681,7 @@ void SimTagIso15693(uint8_t *uid) {
 
     LED_C_ON();
 
-    // Build INVENTORY command
-    uint8_t resp_inv[CMD_INV_RESP] = {0};
 
-    resp_inv[0] = 0; // No error, no protocol format extension
-    resp_inv[1] = 0; // DSFID (data storage format identifier).  0x00 = not supported
-
-    // 64-bit UID
-    resp_inv[2] = uid[7];
-    resp_inv[3] = uid[6];
-    resp_inv[4] = uid[5];
-    resp_inv[5] = uid[4];
-    resp_inv[6] = uid[3];
-    resp_inv[7] = uid[2];
-    resp_inv[8] = uid[1];
-    resp_inv[9] = uid[0];
-
-    // CRC
-    AddCrc15(resp_inv, 10);
-    CodeIso15693AsTag(resp_inv, CMD_INV_RESP);
-
-    tosend_t *ts = get_tosend();
 
     enum { NO_FIELD, IDLE, ACTIVATED, SELECTED, HALTED } chip_state = NO_FIELD;
 
@@ -1745,11 +1727,96 @@ void SimTagIso15693(uint8_t *uid) {
         if ((cmd_len >= 5) && (cmd[0] & ISO15_REQ_INVENTORY) && (cmd[1] == ISO15_CMD_INVENTORY)) {
             bool slow = !(cmd[0] & ISO15_REQ_DATARATE_HIGH);
             uint32_t response_time = reader_eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM;
+                // Build INVENTORY command
+    uint8_t resp_inv[CMD_INV_RESP] = {0};
+
+    resp_inv[0] = 0; // No error, no protocol format extension
+    resp_inv[1] = 0; // DSFID (data storage format identifier).  0x00 = not supported
+
+    // 64-bit UID
+    resp_inv[2] = uid[7];
+    resp_inv[3] = uid[6];
+    resp_inv[4] = uid[5];
+    resp_inv[5] = uid[4];
+    resp_inv[6] = uid[3];
+    resp_inv[7] = uid[2];
+    resp_inv[8] = uid[1];
+    resp_inv[9] = uid[0];
+
+    // CRC
+    AddCrc15(resp_inv, 10);
+    CodeIso15693AsTag(resp_inv, CMD_INV_RESP);
+    
+    tosend_t *ts = get_tosend();
+    
             TransmitTo15693Reader(ts->buf, ts->max, &response_time, 0, slow);
             LogTrace_ISO15693(resp_inv, CMD_INV_RESP, response_time * 32, (response_time * 32) + (ts->max * 32 * 64), NULL, false);
 
             chip_state = SELECTED;
         }
+        
+        // GET_SYSTEM_INFO
+        if ((cmd[1] == ISO15_CMD_SYSINFO)) {
+            bool slow = !(cmd[0] & ISO15_REQ_DATARATE_HIGH);
+            uint32_t response_time = reader_eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM;
+            
+                // Build GET_SYSTEM_INFO command
+    uint8_t resp_sysinfo[CMD_SYSINFO_RESP] = {0};
+    
+    resp_sysinfo[0] = 0;    // Response flags.
+    resp_sysinfo[1] = 0x0F; // Information flags.
+    
+    // 64-bit UID
+    resp_sysinfo[2] = uid[7];
+    resp_sysinfo[3] = uid[6];
+    resp_sysinfo[4] = uid[5];
+    resp_sysinfo[5] = uid[4];
+    resp_sysinfo[6] = uid[3];
+    resp_sysinfo[7] = uid[2];
+    resp_sysinfo[8] = uid[1];
+    resp_sysinfo[9] = uid[0];
+    
+    resp_sysinfo[10] = 0;    // DSFID
+    resp_sysinfo[11] = 0;    // AFI
+
+    resp_sysinfo[12] = 0x1B; // Memory size [0].
+    resp_sysinfo[13] = 0x03; // Memory size [1].
+    resp_sysinfo[14] = 0x01; // Memory size [2].
+    
+    // CRC
+    AddCrc15(resp_sysinfo, 15);
+    CodeIso15693AsTag(resp_sysinfo, CMD_SYSINFO_RESP);
+    
+    tosend_t *ts = get_tosend();
+            
+            TransmitTo15693Reader(ts->buf, ts->max, &response_time, 0, slow);
+            LogTrace_ISO15693(resp_sysinfo, CMD_SYSINFO_RESP, response_time * 32, (response_time * 32) + (ts->max * 32 * 64), NULL, false);
+        }
+        
+        // READ_BLOCK
+        if ((cmd[1] == ISO15_CMD_READ)) {
+            bool slow = !(cmd[0] & ISO15_REQ_DATARATE_HIGH);
+            uint32_t response_time = reader_eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM;
+            
+    // Build GET_SYSTEM_INFO command
+    uint8_t resp_readblock[CMD_READBLOCK_RESP] = {0};
+    
+    resp_readblock[0] = 0;    // Response flags.
+    resp_readblock[1] = 0;    // Block data.
+    resp_readblock[2] = 0;    // Block data.
+    resp_readblock[3] = 0;    // Block data.
+    resp_readblock[4] = 0;    // Block data.
+    
+    // CRC
+    AddCrc15(resp_readblock, 5);
+    CodeIso15693AsTag(resp_readblock, CMD_READBLOCK_RESP);
+    
+    tosend_t *ts = get_tosend();
+    
+    
+            TransmitTo15693Reader(ts->buf, ts->max, &response_time, 0, slow);
+            LogTrace_ISO15693(resp_readblock, CMD_READBLOCK_RESP, response_time * 32, (response_time * 32) + (ts->max * 32 * 64), NULL, false);
+        }
     }
 
     switch_off();
diff --git a/test.cmd b/test.cmd
new file mode 100644
index 000000000..c70608298
--- /dev/null
+++ b/test.cmd
@@ -0,0 +1,2 @@
+hw version
+hw version