diff --git a/app/build.gradle b/app/build.gradle
index d637179..c30de84 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,8 +12,8 @@ android {
         applicationId "com.vectras.vm"
         minSdk minApi
         targetSdk targetApi
-        versionCode 104
-        versionName "4.0.0"
+        versionCode 105
+        versionName "4.0.1"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
 
diff --git a/app/src/main/java/com/vectras/qemu/MainVNCActivity.java b/app/src/main/java/com/vectras/qemu/MainVNCActivity.java
index e0f0393..393af80 100644
--- a/app/src/main/java/com/vectras/qemu/MainVNCActivity.java
+++ b/app/src/main/java/com/vectras/qemu/MainVNCActivity.java
@@ -45,6 +45,7 @@ import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
+
 import androidx.appcompat.widget.Toolbar;
 
 import com.vectras.vm.*;
@@ -167,7 +168,7 @@ public class MainVNCActivity extends VncCanvasActivity {
         binding.lnNosignal.setOnClickListener(v -> {
             // In VNCCanvasActivity.
             // Do not attempt to reconnect while connected.
-            reconnect();
+            tryReconnect();
         });
 
         ConnectionBean.useLocalCursor = MainSettingsManager.getShowVirtualMouse(this) || VMManager.isNeedUseVirtualMouse();
@@ -768,7 +769,8 @@ public class MainVNCActivity extends VncCanvasActivity {
             this.vncCanvas.setFocusableInTouchMode(true);
 //            syncCursorViewWithBitmap();
 
-            if (VmAudioManager.currentVmId.equals(Config.vmID) && VmAudioManager.streamAudio.isPlaying()) streamAudio.setCross(VmAudioManager.streamAudio);
+            if (VmAudioManager.currentVmId.equals(Config.vmID) && VmAudioManager.streamAudio.isPlaying())
+                streamAudio.setCross(VmAudioManager.streamAudio);
             if (!streamAudio.isPlaying()) streamAudio.play();
         });
     }
@@ -819,7 +821,12 @@ public class MainVNCActivity extends VncCanvasActivity {
         }
     }
 
+    private boolean isTrying;
+
     private void tryReconnect() {
+        if (isTrying) return;
+        isTrying = true;
+
         new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
             int count = 0;
 
@@ -827,18 +834,29 @@ public class MainVNCActivity extends VncCanvasActivity {
             public void run() {
                 count++;
 
-                if (!isFinishing() && !isDestroyed() && !isConnected && count < retryLimit) {
-                    // Do not attempt to reconnect while connected.
-                    if (Config.forceRefeshVNCDisplay) {
-                        runOnUiThread(() -> {
-                            startActivity(new Intent(MainVNCActivity.this, MainVNCActivity.class));
-                            overridePendingTransition(0, 0);
-                            finish();
-                        });
-                    } else {
+                if (!isFinishing() && !isDestroyed()) {
+                    if (!isConnected && count < retryLimit) {
+                        // Do not attempt to reconnect while connected.
+                        binding.lnNosignal.setVisibility(View.GONE);
+                        binding.lnConnecting.setVisibility(View.VISIBLE);
                         reconnect();
+                        new Handler(Looper.getMainLooper()).postDelayed(this, 1000);
+                    } else if (!isConnected) {
+                        isTrying = false;
+
+                        binding.lnNosignal.setVisibility(View.VISIBLE);
+                        binding.lnConnecting.setVisibility(View.GONE);
+                    } else {
+                        isTrying = false;
+
+                        if (Config.forceRefeshVNCDisplay) {
+                            runOnUiThread(() -> {
+                                startActivity(new Intent(MainVNCActivity.this, MainVNCActivity.class));
+                                overridePendingTransition(0, 0);
+                                finish();
+                            });
+                        }
                     }
-                    new Handler(Looper.getMainLooper()).postDelayed(this, 1000);
                 }
             }
         }, 0);
@@ -892,7 +910,8 @@ public class MainVNCActivity extends VncCanvasActivity {
             DialogUtils.twoDialog(this, "Exit", "You will be left here but the virtual machine will continue to run.", "Exit", getString(R.string.cancel), true, R.drawable.exit_to_app_24px, true,
                     () -> {
                         started = false;
-                        if (!VmAudioManager.currentVmId.equals(Config.vmID)) streamAudio.setCross(null);
+                        if (!VmAudioManager.currentVmId.equals(Config.vmID))
+                            streamAudio.setCross(null);
                         finish();
                     }, null, null);
             return false;
diff --git a/app/src/main/java/com/vectras/vm/ExportRomActivity.java b/app/src/main/java/com/vectras/vm/ExportRomActivity.java
index 18f5b9e..4d4f13b 100644
--- a/app/src/main/java/com/vectras/vm/ExportRomActivity.java
+++ b/app/src/main/java/com/vectras/vm/ExportRomActivity.java
@@ -98,7 +98,7 @@ public class ExportRomActivity extends AppCompatActivity {
 
     @SuppressLint("SetTextI18n")
     private void startCreate(Uri uri) {
-        String cvbiFolder = Objects.requireNonNull(getExternalCacheDir()).getAbsolutePath() + "/cvbi/";
+        /*String cvbiFolder = Objects.requireNonNull(getExternalCacheDir()).getAbsolutePath() + "/cvbi/";
         File vDir = new File(cvbiFolder);
         if (!vDir.exists()) {
             if (!vDir.mkdirs()) {
@@ -113,7 +113,7 @@ public class ExportRomActivity extends AppCompatActivity {
                         this::finish
                 );
             }
-        }
+        }*/
 
         String getRomPath = VmFileManager.getPath(current.vmID);
         HashMap<String, Object> vmConfigMap = new HashMap<>();
@@ -160,7 +160,7 @@ public class ExportRomActivity extends AppCompatActivity {
 
         vmConfigMap.put("versioncode", PackageUtils.getThisVersionCode(getApplicationContext()));
 
-        String tempFolder = Objects.requireNonNull(getExternalCacheDir()).getAbsolutePath() + "/temp/";
+        String tempFolder = VmFileManager.getTempPath(this, current.vmID + "/export");
 
         FileUtils.writeToFile(tempFolder, "rom-data.json", new Gson().toJson(vmConfigMap));
 
@@ -214,7 +214,7 @@ public class ExportRomActivity extends AppCompatActivity {
         new Thread(() -> {
             isExporting = true;
 
-            String outputPath;
+            /*String outputPath;
             String outputFileName = current.itemName + ".cvbi";
             if (!FileUtils.isFileExists(cvbiFolder + current.itemName + ".cvbi")) {
                 outputPath = cvbiFolder + outputFileName;
@@ -229,7 +229,7 @@ public class ExportRomActivity extends AppCompatActivity {
                         prefix++;
                     }
                 }
-            }
+            }*/
 
             final boolean[] result = {ZipUtils.compress(
                     this,
@@ -244,36 +244,37 @@ public class ExportRomActivity extends AppCompatActivity {
 
                 String finalOutputPath = "";
                 try {
-                    FileUtils.delete(new File(outputPath));
-                    FileUtils.delete(new File(tempFolder));
+                    //FileUtils.delete(new File(outputPath));
+                    VmFileManager.removeTemp(this, current.vmID);
                     finalOutputPath = FileUtils.getPath(this, uri);
                 } catch (Exception e) {
                     Log.e(TAG, "startCreate: ", e);
                 }
 
-                String finalOutputPath1 = finalOutputPath;
+                String finalOutputPath1 = finalOutputPath != null ? finalOutputPath : "";
                 String title;
                 String content;
                 if (result[0]) {
                     title = getString(R.string.done);
-                    content = finalOutputPath1 == null || finalOutputPath1.isEmpty() ? getString(R.string.rom_successfully_exported) : getString(R.string.saved_in) + ": " + finalOutputPath1 + ".";
+                    content = finalOutputPath1.isEmpty() ? getString(R.string.rom_successfully_exported) : getString(R.string.saved_in) + ": " + finalOutputPath1 + ".";
                 } else {
                     title = getString(R.string.oops);
                     content = getString(R.string.something_went_wrong) + ":\n\n" + ZipUtils.lastErrorContent;
                 }
 
+                File file = new File(finalOutputPath1);
+                boolean isShowInFolder = !finalOutputPath1.isEmpty() && result[0] && file.getParent() != null && FileUtils.isFileExists(file.getParent());
+
                 DialogUtils.twoDialog(this,
                         title,
                         content,
-                        getString(result[0] ? R.string.show_in_folder : R.string.ok),
-                        getString(result[0] ? R.string.close : R.string.exit),
+                        getString(isShowInFolder ? R.string.show_in_folder : R.string.ok),
+                        getString(isShowInFolder ? R.string.close : R.string.exit),
                         true,
                         result[0] ? R.drawable.check_24px : R.drawable.error_96px,
                         true,
                         () -> {
-                            if (result[0]) {
-                                assert finalOutputPath1 != null;
-                                File file = new File(finalOutputPath1.isEmpty() ? outputPath : finalOutputPath1);
+                            if (isShowInFolder) {
                                 FileUtils.openFolder(this, file.getParent());
                             }
                         },
diff --git a/app/src/main/java/com/vectras/vm/SplashActivity.java b/app/src/main/java/com/vectras/vm/SplashActivity.java
index 29fe26d..d3011bd 100644
--- a/app/src/main/java/com/vectras/vm/SplashActivity.java
+++ b/app/src/main/java/com/vectras/vm/SplashActivity.java
@@ -118,8 +118,6 @@ public class SplashActivity extends AppCompatActivity {
     private void cleanUp() {
         FileUtils.delete(AppConfig.vmFolder + "QuickRun");
         VmFileManager.removeTemp(this, "");
-        FileUtils.delete(new File(getExternalCacheDir(), "logs"));
-        FileUtils.delete(new File(getExternalCacheDir(), "cvbi"));
     }
 
     private void finishSplash() {
diff --git a/app/src/main/java/com/vectras/vm/creator/VMCreatorActivity.java b/app/src/main/java/com/vectras/vm/creator/VMCreatorActivity.java
index aaccc40..482a106 100644
--- a/app/src/main/java/com/vectras/vm/creator/VMCreatorActivity.java
+++ b/app/src/main/java/com/vectras/vm/creator/VMCreatorActivity.java
@@ -449,7 +449,7 @@ public class VMCreatorActivity extends AppCompatActivity {
                             return;
                         }
                         File selectedFilePath = new File(getPath(uri));
-                        if (selectedFilePath.getName().endsWith(".iso")) {
+                        if (selectedFilePath.getName().toLowerCase().endsWith(".iso")) {
                             runOnUiThread(() -> binding.cdrom.setText(selectedFilePath.getPath()));
                         } else {
                             runOnUiThread(() -> DialogUtils.oneDialog(this,
diff --git a/app/src/main/java/com/vectras/vm/main/core/MainStartVM.java b/app/src/main/java/com/vectras/vm/main/core/MainStartVM.java
index 48dc236..d88b188 100644
--- a/app/src/main/java/com/vectras/vm/main/core/MainStartVM.java
+++ b/app/src/main/java/com/vectras/vm/main/core/MainStartVM.java
@@ -72,6 +72,13 @@ public class MainStartVM {
             if (pendingVMID.isEmpty()) return;
             pendingVMID = "";
         } else {
+            if (MainSettingsManager.getVmUi(context).equals("X11") && !DisplaySystem.isUseBuiltInX11()) {
+                if (!PackageUtils.isInstalled("com.termux.x11", context)) {
+                    DialogUtils.needInstallTermuxX11(context);
+                    return;
+                }
+            }
+            
             lastVMName = vmName;
             lastEnv = env;
             lastVMID = vmID;
@@ -79,8 +86,8 @@ public class MainStartVM {
 
             if (MainSettingsManager.getVmUi(context).equals("X11") && !VMManager.isVMRunning(context, vmID)) {
                 if (MainSettingsManager.getRunQemuWithXterm(context)) {
-                    String logFilePath = VMManager.getVMLogFilePath(context, vmID);
-                    runCommandFormat = String.format(runCommandFormat, "xterm -e bash -c \"%s 2>&1 | tee " + logFilePath + "\"; cat " + logFilePath + "; rm " + logFilePath);
+                    String logFilePath = VmFileManager.getLog(context, vmID);
+                    runCommandFormat = String.format(runCommandFormat, "mkdir -p \"" + new File(logFilePath).getParent() + "\"; xterm -e bash -c \"%s 2>&1 | tee " + logFilePath + "\"; cat " + logFilePath + "; rm " + logFilePath);
                 } else {
                     runCommandFormat = String.format(runCommandFormat, "bash -c \"%s\"");
                 }
@@ -222,13 +229,6 @@ public class MainStartVM {
             }
         }
 
-        if (MainSettingsManager.getVmUi(context).equals("X11") && !DisplaySystem.isUseBuiltInX11()) {
-            if (!PackageUtils.isInstalled("com.termux.x11", context)) {
-                DialogUtils.needInstallTermuxX11(context);
-                return;
-            }
-        }
-
         tickForLaunch = new Runnable() {
             @Override
             public void run() {
@@ -403,7 +403,12 @@ public class MainStartVM {
         ImageView ivStop = progressView.findViewById(R.id.ivStop);
         ivStop.setOnClickListener(v -> {
             isStopNow = true;
-            QmpSender.quickShutdown();
+            ivStop.setVisibility(View.GONE);
+            vmBootNote.setText(R.string.shutting_down);
+            new Thread(() -> {
+                QmpSender.shutdown();
+                new Handler(Looper.getMainLooper()).post(() -> progressDialog.dismiss());
+            }).start();
         });
 
         progressDialog = new MaterialAlertDialogBuilder(context, R.style.CenteredDialogTheme)
diff --git a/app/src/main/java/com/vectras/vm/manager/VmFileManager.java b/app/src/main/java/com/vectras/vm/manager/VmFileManager.java
index d92d380..6f50846 100644
--- a/app/src/main/java/com/vectras/vm/manager/VmFileManager.java
+++ b/app/src/main/java/com/vectras/vm/manager/VmFileManager.java
@@ -7,7 +7,6 @@ import com.vectras.vm.AppConfig;
 import com.vectras.vm.utils.FileUtils;
 
 import java.io.File;
-import java.util.Objects;
 
 public class VmFileManager {
     private static final String TAG = "VmFileManager";
@@ -19,6 +18,7 @@ public class VmFileManager {
     public static final String SNAPSHOT_SH_FILE_NAME = "snapshot.sh";
     public static final String SNAPSHOT_BIN_FILE_NAME = "snapshot.bin";
     public static final String CREATE_COMMAND_CONFIG_FILE_NAME = "cqcm.json";
+    public static final String LOG_FILE_NAME = "vm.log";
     public static final String TEXT_MARK_VM_PATH = "OhnoIjustrealizeditsmidnightandIstillhavetodothis";
     public static final String HIDE_VM_SUFFIX = "_";
 
@@ -170,6 +170,10 @@ public class VmFileManager {
         return VmFileManager.getPath(vmId, SNAPSHOT_BIN_FILE_NAME);
     }
 
+    public static String getLog(Context context, String vmId) {
+        return VmFileManager.getTempPath(context, vmId, LOG_FILE_NAME);
+    }
+
     public static boolean isCreateCommandConfigFileExists(String vmId) {
         return FileUtils.isFileExists(getCreateCommandConfigFile(vmId));
     }
diff --git a/app/src/main/res/layout/activity_vnc.xml b/app/src/main/res/layout/activity_vnc.xml
index e42d85a..fe7a69a 100644
--- a/app/src/main/res/layout/activity_vnc.xml
+++ b/app/src/main/res/layout/activity_vnc.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -77,6 +78,22 @@
                 android:textColor="@android:color/white" />
         </LinearLayout>
 
+        <LinearLayout
+            android:id="@+id/ln_connecting"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="#E6000000"
+            android:gravity="center"
+            android:orientation="vertical"
+            android:visibility="gone"
+            tools:visibility="visible">
+
+            <com.google.android.material.progressindicator.CircularProgressIndicator
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:indeterminate="true" />
+        </LinearLayout>
+
     </RelativeLayout>
 
     <RelativeLayout
diff --git a/app/src/main/res/values-vi/strings.xml b/app/src/main/res/values-vi/strings.xml
index 71df56b..fe12f25 100644
--- a/app/src/main/res/values-vi/strings.xml
+++ b/app/src/main/res/values-vi/strings.xml
@@ -554,6 +554,7 @@
     <string name="locked_and_cannot_be_changed_content">Thiết bị đã bị khoá và không thể thay đổi ngay bây giờ. Hãy thử lại sau. Bạn có thể thử rút nó và thử thay đổi lại.</string>
     <string name="manage">Quản lý</string>
     <string name="connect">Kết nối</string>
+    <string name="shutting_down">Đang tắt…</string>
 
     <!--======================TERMUX STRINGS====================-->
     <string name="application_name" translatable="false">Vterm</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index fb12fc0..4077d1c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -565,6 +565,7 @@
     <string name="locked_and_cannot_be_changed_content">The device is locked and cannot be changed right now. Please try again later. You can try eject it and then trying to change it again.</string>
     <string name="manage">Manage</string>
     <string name="connect">Connect</string>
+    <string name="shutting_down">Shutting down…</string>
 
 
     <!--======================TERMUX STRINGS====================-->
diff --git a/web/data/UpdateConfig.json b/web/data/UpdateConfig.json
index e47b636..7ee50e5 100644
--- a/web/data/UpdateConfig.json
+++ b/web/data/UpdateConfig.json
@@ -5,11 +5,11 @@
     "url": "https://github.com/xoureldeen/Vectras-VM-Android/releases",
     "Message": "<h2>4.0.0</h2>\nBugs fixed.",
     "cancellable": true,
-    "versionCodeBeta":"104",
-    "versionNameBeta":"4.0.0",
-    "versionNameBetas":"3.0.0,3.1.0,3.2.1,3.2.2,3.2.3,3.2.4,3.2.5,3.2.6,3.2.7,3.2.8,3.2.9,3.2.10,3.3.1,3.3.2,3.3.3,3.3.4,3.3.5,3.3.6,3.3.7,3.3.8,3.3.9,3.4.1,3.4.2,3.4.3,3.4.4,3.4.5,3.4.6,3.4.7,3.4.8,3.4.9,3.5.1,3.5.2,3.5.3,3.5.4,3.5.5,3.5.6,3.5.7,3.5.8,3.5.9,3.6.1,3.6.2,3.6.3,3.6.4,3.6.5,3.6.6,3.6.7,3.6.8,3.6.9,3.7.1,3.7.2,3.7.3,3.7.4,3.7.5,3.7.6,3.7.7,3.7.8,3.7.9,3.8.0,3.8.1,3.8.2,3.8.3,3.8.4,3.8.5,3.8.6,3.8.7,3.8.8,3.8.9,3.9.0,3.9.1,3.9.2,3.9.3,3.9.4,3.9.5,3.9.6,3.9.7,3.9.8,3.9.9,4.0.0",
+    "versionCodeBeta":"105",
+    "versionNameBeta":"4.0.1",
+    "versionNameBetas":"3.0.0,3.1.0,3.2.1,3.2.2,3.2.3,3.2.4,3.2.5,3.2.6,3.2.7,3.2.8,3.2.9,3.2.10,3.3.1,3.3.2,3.3.3,3.3.4,3.3.5,3.3.6,3.3.7,3.3.8,3.3.9,3.4.1,3.4.2,3.4.3,3.4.4,3.4.5,3.4.6,3.4.7,3.4.8,3.4.9,3.5.1,3.5.2,3.5.3,3.5.4,3.5.5,3.5.6,3.5.7,3.5.8,3.5.9,3.6.1,3.6.2,3.6.3,3.6.4,3.6.5,3.6.6,3.6.7,3.6.8,3.6.9,3.7.1,3.7.2,3.7.3,3.7.4,3.7.5,3.7.6,3.7.7,3.7.8,3.7.9,3.8.0,3.8.1,3.8.2,3.8.3,3.8.4,3.8.5,3.8.6,3.8.7,3.8.8,3.8.9,3.9.0,3.9.1,3.9.2,3.9.3,3.9.4,3.9.5,3.9.6,3.9.7,3.9.8,3.9.9,4.0.0,4.0.1",
     "sizeBeta": "45 MB",
     "urlBeta": "https://github.com/AnBui2004/Vectras-VM-Emu-Android/releases",
-    "MessageBeta": "<h2>4.0.0</h2>Bugs fixed.",
+    "MessageBeta": "<h2>4.0.1</h2>Bugs fixed.",
     "cancellableBeta": true
 }