diff --git a/app/src/main/java/org/lsposed/manager/ConfigManager.java b/app/src/main/java/org/lsposed/manager/ConfigManager.java
index 0a3621c3..f54b8b65 100644
--- a/app/src/main/java/org/lsposed/manager/ConfigManager.java
+++ b/app/src/main/java/org/lsposed/manager/ConfigManager.java
@@ -340,4 +340,23 @@ public class ConfigManager {
             Log.e(App.TAG, Log.getStackTraceString(e));
         }
     }
+
+    public static boolean isDexObfuscateEnabled() {
+        try {
+            return LSPManagerServiceHolder.getService().getDexObfuscate();
+        } catch (RemoteException e) {
+            Log.e(App.TAG, Log.getStackTraceString(e));
+            return false;
+        }
+    }
+
+    public static boolean setDexObfuscateEnabled(boolean enabled) {
+        try {
+            LSPManagerServiceHolder.getService().setDexObfuscate(enabled);
+            return true;
+        } catch (RemoteException e) {
+            Log.e(App.TAG, Log.getStackTraceString(e));
+            return false;
+        }
+    }
 }
diff --git a/app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java b/app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java
index e67e5621..2732d315 100644
--- a/app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java
+++ b/app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java
@@ -152,6 +152,15 @@ public class SettingsFragment extends BaseFragment {
                         ConfigManager.setVerboseLogEnabled(!(boolean) newValue));
             }
 
+            SwitchPreference prefDexObfuscate = findPreference("enable_dex_obfuscate");
+            if (prefDexObfuscate != null) {
+                prefDexObfuscate.setEnabled(installed);
+                prefDexObfuscate.setChecked(!installed || !ConfigManager.isDexObfuscateEnabled());
+                prefDexObfuscate.setOnPreferenceChangeListener((preference, newValue) ->
+                        ConfigManager.setDexObfuscateEnabled((boolean) newValue));
+                // TODO: toast "apply on next boot"?
+            }
+
             SwitchPreference prefEnableShortcut = findPreference("enable_auto_add_shortcut");
             if (prefEnableShortcut != null) {
                 prefEnableShortcut.setEnabled(installed);
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index ab70d39f..b7fe9129 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -182,6 +182,7 @@
     <string name="update_channel_stable">Stable</string>
     <string name="update_channel_bate">Beta</string>
     <string name="update_channel_nightly">Nightly build</string>
+    <string name="pref_title_enable_dex_obfuscate">Enable Dex Obfuscate</string>
 
     <!-- Module Repo -->
     <string name="module_readme">Readme</string>
diff --git a/app/src/main/res/xml/prefs.xml b/app/src/main/res/xml/prefs.xml
index dfa0d4c1..1a193aaf 100644
--- a/app/src/main/res/xml/prefs.xml
+++ b/app/src/main/res/xml/prefs.xml
@@ -90,6 +90,12 @@
             android:persistent="false"
             android:title="@string/pref_title_disable_verbose_log" />
 
+        <SwitchPreference
+            android:defaultValue="true"
+            android:key="enable_dex_obfuscate"
+            android:persistent="false"
+            android:title="@string/pref_title_enable_dex_obfuscate" />
+
         <Preference
             android:icon="@drawable/ic_outline_app_shortcut_24"
             android:key="add_shortcut"
diff --git a/daemon/src/main/cpp/obfuscation.cpp b/daemon/src/main/cpp/obfuscation.cpp
index ab6c5c14..732213cb 100644
--- a/daemon/src/main/cpp/obfuscation.cpp
+++ b/daemon/src/main/cpp/obfuscation.cpp
@@ -35,9 +35,16 @@
 #include "slicer/writer.h"
 #include "obfuscation.h"
 
+bool obfuscate_enabled(JNIEnv* env, jclass obfuscation_manager) {
+    auto method_enabled = JNI_GetMethodID(env, obfuscation_manager, "enabled", "()Z");
+    auto result = JNI_CallStaticBooleanMethod(env, obfuscation_manager, method_enabled);
+    return result;
+}
+
 extern "C"
 JNIEXPORT void JNICALL
-Java_org_lsposed_lspd_service_ObfuscationManager_init(JNIEnv *env, jclass ) {
+Java_org_lsposed_lspd_service_ObfuscationManager_init(JNIEnv *env, jclass obfuscation_manager) {
+    if (!obfuscate_enabled(env, obfuscation_manager)) return;
     LOGD("ObfuscationManager.init");
     if (auto file_descriptor = JNI_FindClass(env, "java/io/FileDescriptor")) {
         class_file_descriptor = JNI_NewGlobalRef(env, file_descriptor);
@@ -55,10 +62,9 @@ Java_org_lsposed_lspd_service_ObfuscationManager_init(JNIEnv *env, jclass ) {
 
 extern "C"
 JNIEXPORT jstring JNICALL
-Java_org_lsposed_lspd_service_ObfuscationManager_getObfuscatedSignature(JNIEnv *env, jclass ) {
-    if (!obfuscated_signature.empty()) {
-        return env->NewStringUTF(obfuscated_signature.c_str());
-    }
+Java_org_lsposed_lspd_service_ObfuscationManager_getObfuscatedSignature(JNIEnv *env, jclass obfuscation_manager) {
+    if (!obfuscate_enabled(env, obfuscation_manager)) return env->NewStringUTF(old_signature.c_str());
+    if (!obfuscated_signature.empty()) return env->NewStringUTF(obfuscated_signature.c_str());
 
     auto regen = []() {
         static auto& chrs = "abcdefghijklmnopqrstuvwxyz"
@@ -131,7 +137,7 @@ int obfuscateDex(const void *dex, size_t size) {
 
 extern "C"
 JNIEXPORT jint JNICALL
-Java_org_lsposed_lspd_service_ObfuscationManager_preloadDex(JNIEnv *, jclass ) {
+Java_org_lsposed_lspd_service_ObfuscationManager_preloadDex(JNIEnv *env, jclass obfuscation_manager) {
     using namespace std::string_literals;
     std::lock_guard lg(dex_lock);
     if (lspdDex != -1) return lspdDex;
@@ -149,14 +155,20 @@ Java_org_lsposed_lspd_service_ObfuscationManager_preloadDex(JNIEnv *, jclass ) {
 
     LOGD("Loaded %s with size %zu", dex_path.data(), size);
 
+    if (!obfuscate_enabled(env, obfuscation_manager)) {
+        lspdDex = fileno(f.get());
+        return lspdDex;
+    }
+
     auto *addr = mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fileno(f.get()), 0);
 
     if (addr == MAP_FAILED) {
-        PLOGE("Read dex");
+        PLOGE("Map dex");
         return -1;
     }
 
     auto new_dex = obfuscateDex(addr, size);
+    munmap(addr, size);
     LOGD("LSPApplicationService::preloadDex: %d, size=%zu", new_dex, ASharedMemory_getSize(new_dex));
     lspdDex = new_dex;
     return new_dex;
@@ -164,8 +176,13 @@ Java_org_lsposed_lspd_service_ObfuscationManager_preloadDex(JNIEnv *, jclass ) {
 
 extern "C"
 JNIEXPORT jlong JNICALL
-Java_org_lsposed_lspd_service_ObfuscationManager_getPreloadedDexSize(JNIEnv *, jclass ) {
+Java_org_lsposed_lspd_service_ObfuscationManager_getPreloadedDexSize(JNIEnv *env, jclass obfuscation_manager) {
     if (lspdDex != -1) {
+        if (!obfuscate_enabled(env, obfuscation_manager)) {
+            auto size = lseek(lspdDex, 0, SEEK_END);
+            lseek(lspdDex, 0, SEEK_SET);
+            return size;
+        }
         return ASharedMemory_getSize(lspdDex);
     }
     return 0;
@@ -173,8 +190,9 @@ Java_org_lsposed_lspd_service_ObfuscationManager_getPreloadedDexSize(JNIEnv *, j
 
 extern "C"
 JNIEXPORT jobject
-Java_org_lsposed_lspd_service_ObfuscationManager_obfuscateDex(JNIEnv *env, jclass /*clazz*/,
+Java_org_lsposed_lspd_service_ObfuscationManager_obfuscateDex(JNIEnv *env, jclass obfuscation_manager,
                                                        jobject memory) {
+    if (!obfuscate_enabled(env, obfuscation_manager)) { return memory; }
     int fd = ASharedMemory_dupFromJava(env, memory);
     auto size = ASharedMemory_getSize(fd);
     LOGD("fd=%d, size=%zu", fd, size);
diff --git a/daemon/src/main/java/org/lsposed/lspd/service/ConfigFileManager.java b/daemon/src/main/java/org/lsposed/lspd/service/ConfigFileManager.java
index d7610f10..edf4dc83 100644
--- a/daemon/src/main/java/org/lsposed/lspd/service/ConfigFileManager.java
+++ b/daemon/src/main/java/org/lsposed/lspd/service/ConfigFileManager.java
@@ -316,7 +316,9 @@ public class ConfigFileManager {
                 Channels.newChannel(in).read(byteBuffer);
                 SharedMemory.unmap(byteBuffer);
                 var new_memory = ObfuscationManager.obfuscateDex(memory);
-                memory.close();
+                if (memory != new_memory) {
+                    memory.close();
+                }
                 new_memory.setProtect(OsConstants.PROT_READ);
                 preLoadedDexes.add(new_memory);
             } catch (IOException | ErrnoException e) {
diff --git a/daemon/src/main/java/org/lsposed/lspd/service/ConfigManager.java b/daemon/src/main/java/org/lsposed/lspd/service/ConfigManager.java
index b0332ab2..79af7595 100644
--- a/daemon/src/main/java/org/lsposed/lspd/service/ConfigManager.java
+++ b/daemon/src/main/java/org/lsposed/lspd/service/ConfigManager.java
@@ -87,6 +87,7 @@ public class ConfigManager {
             SQLiteDatabase.openOrCreateDatabase(ConfigFileManager.dbPath, null);
 
     private boolean verboseLog = true;
+    private boolean dexObfuscate = true;
     private boolean autoAddShortcut = true;
     private String miscPath = null;
 
@@ -867,6 +868,19 @@ public class ConfigManager {
         verboseLog = on;
     }
 
+    public boolean verboseLog() {
+        return BuildConfig.DEBUG || verboseLog;
+    }
+
+    public void setDexObfuscate(boolean on) {
+        updateModulePrefs("lspd", 0, "config", "enable_dex_obfuscate", on);
+        dexObfuscate = on;
+    }
+
+    public boolean dexObfuscate() {
+        return dexObfuscate;
+    }
+
     public boolean isAddShortcut() {
         Log.d(TAG, "Auto add shortcut=" + autoAddShortcut);
         return autoAddShortcut;
@@ -877,10 +891,6 @@ public class ConfigManager {
         this.autoAddShortcut = on;
     }
 
-    public boolean verboseLog() {
-        return BuildConfig.DEBUG || verboseLog;
-    }
-
     public ParcelFileDescriptor getManagerApk() {
         try {
             return ConfigFileManager.getManagerApk();
diff --git a/daemon/src/main/java/org/lsposed/lspd/service/LSPManagerService.java b/daemon/src/main/java/org/lsposed/lspd/service/LSPManagerService.java
index 2bc0523c..f0341df9 100644
--- a/daemon/src/main/java/org/lsposed/lspd/service/LSPManagerService.java
+++ b/daemon/src/main/java/org/lsposed/lspd/service/LSPManagerService.java
@@ -769,4 +769,14 @@ public class LSPManagerService extends ILSPManagerService.Stub {
     public boolean performDexOptMode(String packageName) throws RemoteException {
         return PackageService.performDexOptMode(packageName);
     }
+
+    @Override
+    public boolean getDexObfuscate() throws RemoteException {
+        return ConfigManager.getInstance().dexObfuscate();
+    }
+
+    @Override
+    public void setDexObfuscate(boolean enabled) throws RemoteException {
+        ConfigManager.getInstance().setDexObfuscate(enabled);
+    }
 }
diff --git a/daemon/src/main/java/org/lsposed/lspd/service/ObfuscationManager.java b/daemon/src/main/java/org/lsposed/lspd/service/ObfuscationManager.java
index c198c60a..cf6d5e71 100644
--- a/daemon/src/main/java/org/lsposed/lspd/service/ObfuscationManager.java
+++ b/daemon/src/main/java/org/lsposed/lspd/service/ObfuscationManager.java
@@ -3,6 +3,10 @@ package org.lsposed.lspd.service;
 import android.os.SharedMemory;
 
 public class ObfuscationManager {
+    static boolean enabled() {
+        return ConfigManager.getInstance().dexObfuscate();
+    }
+
     static native void init();
 
     // For module dexes
diff --git a/manager-service/src/main/aidl/org/lsposed/lspd/ILSPManagerService.aidl b/manager-service/src/main/aidl/org/lsposed/lspd/ILSPManagerService.aidl
index d434db83..7fcbb9dc 100644
--- a/manager-service/src/main/aidl/org/lsposed/lspd/ILSPManagerService.aidl
+++ b/manager-service/src/main/aidl/org/lsposed/lspd/ILSPManagerService.aidl
@@ -75,4 +75,8 @@ interface ILSPManagerService {
     boolean performDexOptMode(String packageName) = 40;
 
     List<String> getDenyListPackages() = 41;
+
+    boolean getDexObfuscate() = 42;
+
+    void setDexObfuscate(boolean enable) = 43;
 }