diff --git a/private-backend/.gitignore b/private-backend/.gitignore
index fac0b50..4b5becc 100644
--- a/private-backend/.gitignore
+++ b/private-backend/.gitignore
@@ -97,3 +97,8 @@ fabric.properties
 target
 private-backend.iml
 private-server.iml
+
+# Downloaded bin cache
+bin_cache/
+bin_cache/*
+bin_cache/**
diff --git a/private-backend/decode_core/libirdecode_jni.so b/private-backend/decode_core/libirdecode_jni.so
index 108c74b..82eb316 100755
Binary files a/private-backend/decode_core/libirdecode_jni.so and b/private-backend/decode_core/libirdecode_jni.so differ
diff --git a/private-backend/src/main/java/net/irext/decode/sdk/IRDecode.java b/private-backend/src/main/java/net/irext/decode/sdk/IRDecode.java
index 1099d7a..3d81e26 100644
--- a/private-backend/src/main/java/net/irext/decode/sdk/IRDecode.java
+++ b/private-backend/src/main/java/net/irext/decode/sdk/IRDecode.java
@@ -27,12 +27,12 @@ public class IRDecode {
 
     private native int irOpenBinary(int category, int subCate, byte[] binaries, int binLength);
 
-    private native int[] irDecode(int keyCode, ACStatus acStatus, int changeWindDirection);
+    private native int[] irDecode(int keyCode, ACStatus acStatus);
 
     private native void irClose();
 
     private native int[] irDecodeCombo(int category, int subCate, byte[] binaries, int binLength,
-                                       int keyCode, ACStatus acStatus, int changeWindDirection);
+                                       int keyCode, ACStatus acStatus);
 
     private native TemperatureRange irACGetTemperatureRange(int acMode);
 
@@ -71,22 +71,22 @@ public class IRDecode {
         return irOpenBinary(category, subCate, binaries, binLength);
     }
 
-    public int[] decodeBinary(int keyCode, ACStatus acStatus, int changeWindDir) {
+    public int[] decodeBinary(int keyCode, ACStatus acStatus) {
         int[] decoded;
         synchronized (mSync) {
             acStatus = ensureACStatus(acStatus, keyCode);
-            decoded = irDecode(keyCode, acStatus, changeWindDir);
+            decoded = irDecode(keyCode, acStatus);
         }
         return decoded;
     }
 
     public int[] decodeBinary(int category, int subCate, byte[] binaries, int binLength,
-            int keyCode, ACStatus acStatus, int changeWindDir) {
+            int keyCode, ACStatus acStatus) {
         int[] decoded;
         synchronized (mSync) {
             acStatus = ensureACStatus(acStatus, keyCode);
             decoded = irDecodeCombo(category, subCate, binaries, binLength,
-                    keyCode, acStatus, changeWindDir);
+                    keyCode, acStatus);
         }
         return decoded;
     }
diff --git a/private-backend/src/main/java/net/irext/decode/sdk/bean/ACStatus.java b/private-backend/src/main/java/net/irext/decode/sdk/bean/ACStatus.java
index 9756e59..4aa6080 100644
--- a/private-backend/src/main/java/net/irext/decode/sdk/bean/ACStatus.java
+++ b/private-backend/src/main/java/net/irext/decode/sdk/bean/ACStatus.java
@@ -24,6 +24,7 @@ public class ACStatus {
     private int acDisplay;
     private int acSleep;
     private int acTimer;
+    private int changeWindDir;
 
     public ACStatus() {
         this.acPower = Constants.ACPower.POWER_OFF.getValue();
@@ -34,10 +35,11 @@ public class ACStatus {
         this.acTimer = 0;
         this.acDisplay = 0;
         this.acSleep = 0;
+        this.changeWindDir = 0;
     }
 
     public ACStatus(int acPower, int acMode, int acTemp, int acWindSpeed, int acWindDir,
-                    int acDisplay, int acSleep, int acTimer) {
+                    int acDisplay, int acSleep, int acTimer, int changeWindDir) {
         this.acPower = acPower;
         this.acTemp = acTemp;
         this.acMode = acMode;
@@ -46,6 +48,7 @@ public class ACStatus {
         this.acDisplay = acDisplay;
         this.acSleep = acSleep;
         this.acTimer = acTimer;
+        this.changeWindDir = changeWindDir;
     }
 
     public int getAcPower() {
@@ -112,4 +115,11 @@ public class ACStatus {
         this.acTimer = acTimer;
     }
 
+    public int getChangeWindDir() {
+        return changeWindDir;
+    }
+
+    public void setChangeWindDir(int changeWindDir) {
+        this.changeWindDir = changeWindDir;
+    }
 }
diff --git a/private-backend/src/main/java/net/irext/decode/sdk/libs/libirdecode_jni.so b/private-backend/src/main/java/net/irext/decode/sdk/libs/libirdecode_jni.so
index 108c74b..7f1e703 100755
Binary files a/private-backend/src/main/java/net/irext/decode/sdk/libs/libirdecode_jni.so and b/private-backend/src/main/java/net/irext/decode/sdk/libs/libirdecode_jni.so differ
diff --git a/private-backend/src/main/java/net/irext/decode/sdk/utils/Constants.java b/private-backend/src/main/java/net/irext/decode/sdk/utils/Constants.java
index 94b608c..faca3cb 100644
--- a/private-backend/src/main/java/net/irext/decode/sdk/utils/Constants.java
+++ b/private-backend/src/main/java/net/irext/decode/sdk/utils/Constants.java
@@ -31,7 +31,7 @@ public class Constants {
     public static final String ERROR_CODE_INVALID_BRAND_TEXT = "invalid brand";
     public static final String ERROR_CODE_INVALID_PARAMETER_TEXT = "invalid parameter";
 
-    public static final String ERROR_CODE_INVALID_SESSION_TEXT = "invalid server session";
+    public static final String ERROR_CODE_INVALID_SESSION_TEXT = "invalid decode session";
 
     public enum CategoryID {
         AIR_CONDITIONER(1),
@@ -46,7 +46,10 @@ public class Constants {
         LIGHT(10),
         BSTB(11),
         CLEANING_ROBOT(12),
-        AIR_CLEANER(13);
+        AIR_CLEANER(13),
+        DYSON_SERIES(14),
+        CAMERA(15),
+        HEATER(16);
 
         private final int id;
 
diff --git a/private-backend/src/main/java/net/irext/server/businesslogic/OperationLogic.java b/private-backend/src/main/java/net/irext/server/businesslogic/OperationLogic.java
index 4d444c0..c4fc99d 100644
--- a/private-backend/src/main/java/net/irext/server/businesslogic/OperationLogic.java
+++ b/private-backend/src/main/java/net/irext/server/businesslogic/OperationLogic.java
@@ -128,7 +128,7 @@ public class OperationLogic {
                     IRDecode irDecode = IRDecode.getInstance();
                     int ret = irDecode.openBinary(categoryId, subCate, binaryContent, binaryContent.length);
                     if (0 == ret) {
-                        decoded = irDecode.decodeBinary(keyCode, acStatus, changeWindDirection);
+                        decoded = irDecode.decodeBinary(keyCode, acStatus);
                     }
                     irDecode.closeBinary();
                     return decoded;
@@ -270,7 +270,6 @@ public class OperationLogic {
             return null;
         }
     }
-
     private InputStream getBinInputStream(String fileName) {
         String downloadURL = IR_BIN_DOWNLOAD_PREFIX + fileName;
         try {