diff --git a/app/src/main/java/com/fongmi/android/tv/api/ApiConfig.java b/app/src/main/java/com/fongmi/android/tv/api/ApiConfig.java
index b6a8c663e..3488fa4b8 100644
--- a/app/src/main/java/com/fongmi/android/tv/api/ApiConfig.java
+++ b/app/src/main/java/com/fongmi/android/tv/api/ApiConfig.java
@@ -84,7 +84,7 @@ public class ApiConfig {
     public void loadConfig(boolean cache, Callback callback) {
         new Thread(() -> {
             if (cache) loadCache(Prefers.getUrl(), callback);
-            else loadJson(Prefers.getUrl(), callback);
+            else loadConfig(Prefers.getUrl(), callback);
         }).start();
     }
 
@@ -94,7 +94,7 @@ public class ApiConfig {
         else handler.post(() -> callback.error(R.string.error_config_get));
     }
 
-    private void loadJson(String url, Callback callback) {
+    private void loadConfig(String url, Callback callback) {
         try {
             parseConfig(new Gson().fromJson(Decoder.getJson(url), JsonObject.class), callback);
         } catch (Exception e) {
diff --git a/app/src/main/java/com/fongmi/android/tv/api/Decoder.java b/app/src/main/java/com/fongmi/android/tv/api/Decoder.java
index 26f74a973..f730d5e40 100644
--- a/app/src/main/java/com/fongmi/android/tv/api/Decoder.java
+++ b/app/src/main/java/com/fongmi/android/tv/api/Decoder.java
@@ -64,9 +64,9 @@ public class Decoder {
     }
 
     private static byte[] decodeHex(String s) {
-        int len = s.length();
-        byte[] data = new byte[len / 2];
-        for (int i = 0; i < len; i += 2) data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character.digit(s.charAt(i + 1), 16));
+        int len = s.length() / 2;
+        byte[] data = new byte[len];
+        for (int i = 0; i < len; i++) data[i] = Integer.valueOf(s.substring(i * 2, i * 2 + 2), 16).byteValue();
         return data;
     }
 }
diff --git a/app/src/main/java/com/fongmi/android/tv/utils/AES.java b/app/src/main/java/com/fongmi/android/tv/utils/AES.java
deleted file mode 100644
index a3630e2a1..000000000
--- a/app/src/main/java/com/fongmi/android/tv/utils/AES.java
+++ /dev/null
@@ -1,77 +0,0 @@
-package com.fongmi.android.tv.utils;
-
-import com.github.catvod.crawler.SpiderDebug;
-
-import org.json.JSONObject;
-
-import java.security.spec.AlgorithmParameterSpec;
-
-import javax.crypto.Cipher;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
-
-public class AES {
-
-    public static String rightPading(String key, String replace, int Length) {
-        String strReturn = "";
-        String strtemp = "";
-        int curLength = key.trim().length();
-        if (key != null && curLength > Length) {
-            strReturn = key.trim().substring(0, Length);
-        } else if (key != null && curLength == Length) {
-            strReturn = key.trim();
-        } else {
-            for (int i = 0; i < (Length - curLength); i++) {
-                strtemp = strtemp + replace;
-            }
-            strReturn = key.trim() + strtemp;
-        }
-        return strReturn;
-    }
-
-    public static String ECB(String data, String key) {
-        try {
-            key = rightPading(key, "0", 16);
-            byte[] data2 = toBytes(data);
-            SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "AES");
-            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding");
-            cipher.init(Cipher.DECRYPT_MODE, keySpec);
-            return new String(cipher.doFinal(data2));
-        } catch (Exception exception) {
-            SpiderDebug.log(exception);
-        }
-        return null;
-    }
-
-    public static String CBC(String src, String KEY, String IV) {
-        try {
-            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
-            SecretKeySpec keySpec = new SecretKeySpec(KEY.getBytes(), "AES");
-            AlgorithmParameterSpec paramSpec = new IvParameterSpec(IV.getBytes());
-            cipher.init(Cipher.DECRYPT_MODE, keySpec, paramSpec);
-            return new String(cipher.doFinal(toBytes(src)));
-        } catch (Exception exception) {
-            SpiderDebug.log(exception);
-        }
-        return null;
-    }
-
-    public static byte[] toBytes(String src) {
-        int l = src.length() / 2;
-        byte[] ret = new byte[l];
-        for (int i = 0; i < l; i++) {
-            ret[i] = Integer.valueOf(src.substring(i * 2, i * 2 + 2), 16).byteValue();
-        }
-        return ret;
-    }
-
-    public static boolean isJson(String content) {
-        try {
-            new JSONObject(content);
-            return true;
-        } catch (Exception e) {
-            return false;
-        }
-    }
-
-}
diff --git a/app/src/main/java/com/fongmi/android/tv/utils/Updater.java b/app/src/main/java/com/fongmi/android/tv/utils/Updater.java
index 24a995a0a..8aa506aa1 100644
--- a/app/src/main/java/com/fongmi/android/tv/utils/Updater.java
+++ b/app/src/main/java/com/fongmi/android/tv/utils/Updater.java
@@ -22,7 +22,7 @@ import java.util.concurrent.Executors;
 
 public class Updater implements View.OnClickListener {
 
-    private static final String URL = "https://github.com/FongMi/TV/raw/main/release/leanback.json";
+    private static final String URL = "https://raw.githubusercontent.com/FongMi/TV/release/release/leanback.json";
     private static final String PROXY = "https://ghproxy.com/";
 
     private final ExecutorService executor;