diff --git a/Bcore/src/main/java/top/niunaijun/blackbox/app/BActivityThread.java b/Bcore/src/main/java/top/niunaijun/blackbox/app/BActivityThread.java
index 67bba57..4e3bd80 100644
--- a/Bcore/src/main/java/top/niunaijun/blackbox/app/BActivityThread.java
+++ b/Bcore/src/main/java/top/niunaijun/blackbox/app/BActivityThread.java
@@ -138,7 +138,7 @@ public class BActivityThread extends IBActivityThread.Stub {
         }
     }
 
-    public synchronized void handleBindApplication(String packageName, String processName) {
+    private synchronized void handleBindApplication(String packageName, String processName) {
         DumpResult result = new DumpResult();
         result.packageName = packageName;
         result.dir = new File(BlackBoxCore.get().getDexDumpDir(), packageName).getAbsolutePath();
diff --git a/Bcore/src/main/java/top/niunaijun/blackbox/core/IOCore.java b/Bcore/src/main/java/top/niunaijun/blackbox/core/IOCore.java
index d52ae30..8f4a33e 100644
--- a/Bcore/src/main/java/top/niunaijun/blackbox/core/IOCore.java
+++ b/Bcore/src/main/java/top/niunaijun/blackbox/core/IOCore.java
@@ -124,17 +124,4 @@ public class IOCore {
         }
         VMCore.enableIO();
     }
-
-    private void hideRoot(Map<String, String> rule) {
-        rule.put("/system/app/Superuser.apk", "/system/app/Superuser.apk-fake");
-        rule.put("/sbin/su", "/sbin/su-fake");
-        rule.put("/system/bin/su", "/system/bin/su-fake");
-        rule.put("/system/xbin/su", "/system/xbin/su-fake");
-        rule.put("/data/local/xbin/su", "/data/local/xbin/su-fake");
-        rule.put("/data/local/bin/su", "/data/local/bin/su-fake");
-        rule.put("/system/sd/xbin/su", "/system/sd/xbin/su-fake");
-        rule.put("/system/bin/failsafe/su", "/system/bin/failsafe/su-fake");
-        rule.put("/data/local/su", "/data/local/su-fake");
-        rule.put("/su/bin/su", "/su/bin/su-fake");
-    }
 }