diff --git a/Assets/MsgTransmitTools/Socket.meta b/Assets/MsgTransmitTools/Socket.meta
deleted file mode 100644
index c45c83d..0000000
--- a/Assets/MsgTransmitTools/Socket.meta
+++ /dev/null
@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: 25e1e4fdb38352a4d83d79621f265e32
-folderAsset: yes
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Assets/Plugins.meta b/Assets/Plugins.meta
deleted file mode 100644
index 082dd72..0000000
--- a/Assets/Plugins.meta
+++ /dev/null
@@ -1,10 +0,0 @@
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-guid: f09298f408422fd4fbd57cb8fab93b66
-folderAsset: yes
-timeCreated: 1547402842
-licenseType: Store
-DefaultImporter:
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-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Assets/Texture.meta b/Assets/Texture.meta
deleted file mode 100644
index c62cd86..0000000
--- a/Assets/Texture.meta
+++ /dev/null
@@ -1,8 +0,0 @@
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-guid: 53ce428612aa35f43b5b3ea3aa4ce9b8
-folderAsset: yes
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Packages/manifest.json b/Packages/manifest.json
index ca8ceb6..665e7b9 100644
--- a/Packages/manifest.json
+++ b/Packages/manifest.json
@@ -1,6 +1,7 @@
 {
   "dependencies": {
     "com.unity.collab-proxy": "1.12.5",
+    "com.unity.editorcoroutines": "1.0.0",
     "com.unity.ide.rider": "1.2.1",
     "com.unity.ide.visualstudio": "2.0.11",
     "com.unity.ide.vscode": "1.2.4",
diff --git a/Packages/packages-lock.json b/Packages/packages-lock.json
index a21b829..ce00ec0 100644
--- a/Packages/packages-lock.json
+++ b/Packages/packages-lock.json
@@ -7,6 +7,13 @@
       "dependencies": {},
       "url": "https://packages.unity.com"
     },
+    "com.unity.editorcoroutines": {
+      "version": "1.0.0",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {},
+      "url": "https://packages.unity.com"
+    },
     "com.unity.ext.nunit": {
       "version": "1.0.6",
       "depth": 1,
diff --git a/ProjectSettings/EditorBuildSettings.asset b/ProjectSettings/EditorBuildSettings.asset
index 403c141..0147887 100644
--- a/ProjectSettings/EditorBuildSettings.asset
+++ b/ProjectSettings/EditorBuildSettings.asset
@@ -4,14 +4,5 @@
 EditorBuildSettings:
   m_ObjectHideFlags: 0
   serializedVersion: 2
-  m_Scenes:
-  - enabled: 0
-    path: Assets/BlE/SampleScene.unity
-    guid: 632ad9b06329dec43b0c8b1423b28ca0
-  - enabled: 0
-    path: Assets/BlE/Scenes/BluetoothTestScene.unity
-    guid: 9fc0d4010bbf28b4594072e72b8655ab
-  - enabled: 1
-    path: Assets/Simple Bluetooth for android/Demos/Usage Example/Scenes/Main.unity
-    guid: 5ee912e5d6c228c4da0b2ca1d53a001e
+  m_Scenes: []
   m_configObjects: {}
diff --git a/ProjectSettings/GraphicsSettings.asset b/ProjectSettings/GraphicsSettings.asset
index 15f4226..43369e3 100644
--- a/ProjectSettings/GraphicsSettings.asset
+++ b/ProjectSettings/GraphicsSettings.asset
@@ -35,10 +35,6 @@ GraphicsSettings:
   - {fileID: 15106, guid: 0000000000000000f000000000000000, type: 0}
   - {fileID: 10753, guid: 0000000000000000f000000000000000, type: 0}
   - {fileID: 10770, guid: 0000000000000000f000000000000000, type: 0}
-  - {fileID: 16000, guid: 0000000000000000f000000000000000, type: 0}
-  - {fileID: 16001, guid: 0000000000000000f000000000000000, type: 0}
-  - {fileID: 16003, guid: 0000000000000000f000000000000000, type: 0}
-  - {fileID: 17000, guid: 0000000000000000f000000000000000, type: 0}
   m_PreloadedShaders: []
   m_SpritesDefaultMaterial: {fileID: 10754, guid: 0000000000000000f000000000000000,
     type: 0}
diff --git a/ProjectSettings/ProjectSettings.asset b/ProjectSettings/ProjectSettings.asset
index 82dfb77..0f49b4d 100644
--- a/ProjectSettings/ProjectSettings.asset
+++ b/ProjectSettings/ProjectSettings.asset
@@ -4,7 +4,7 @@
 PlayerSettings:
   m_ObjectHideFlags: 0
   serializedVersion: 20
-  productGUID: 23833c297b5c2154797018ca9ad720c5
+  productGUID: b1305725ca6f6e24c8e378b84c0b81cf
   AndroidProfiler: 0
   AndroidFilterTouchesWhenObscured: 0
   AndroidEnableSustainedPerformanceMode: 0
@@ -12,7 +12,7 @@ PlayerSettings:
   targetDevice: 2
   useOnDemandResources: 0
   accelerometerFrequency: 60
-  companyName: JXSoft
+  companyName: DefaultCompany
   productName: JXSoftTools
   defaultCursor: {fileID: 0}
   cursorHotspot: {x: 0, y: 0}
@@ -74,7 +74,7 @@ PlayerSettings:
   androidFullscreenMode: 1
   defaultIsNativeResolution: 1
   macRetinaSupport: 1
-  runInBackground: 0
+  runInBackground: 1
   captureSingleScreen: 0
   muteOtherAudioSources: 0
   Prepare IOS For Recording: 0
@@ -176,7 +176,7 @@ PlayerSettings:
   applicationIdentifier: {}
   buildNumber: {}
   AndroidBundleVersionCode: 1
-  AndroidMinSdkVersion: 24
+  AndroidMinSdkVersion: 19
   AndroidTargetSdkVersion: 0
   AndroidPreferredInstallLocation: 1
   aotOptions: 
@@ -254,15 +254,15 @@ PlayerSettings:
   AndroidTargetDevices: 0
   AndroidSplashScreenScale: 0
   androidSplashScreen: {fileID: 0}
-  AndroidKeystoreName: D:/Android/keystore/targetPad.keystore
-  AndroidKeyaliasName: z
+  AndroidKeystoreName: 
+  AndroidKeyaliasName: 
   AndroidBuildApkPerCpuArchitecture: 0
   AndroidTVCompatibility: 0
   AndroidIsGame: 1
   AndroidEnableTango: 0
   androidEnableBanner: 1
   androidUseLowAccuracyLocation: 0
-  androidUseCustomKeystore: 1
+  androidUseCustomKeystore: 0
   m_AndroidBanners:
   - width: 320
     height: 180
@@ -272,99 +272,7 @@ PlayerSettings:
   AndroidValidateAppBundleSize: 1
   AndroidAppBundleSizeToValidate: 150
   m_BuildTargetIcons: []
-  m_BuildTargetPlatformIcons:
-  - m_BuildTarget: Android
-    m_Icons:
-    - m_Textures: []
-      m_Width: 432
-      m_Height: 432
-      m_Kind: 2
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 324
-      m_Height: 324
-      m_Kind: 2
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 216
-      m_Height: 216
-      m_Kind: 2
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 162
-      m_Height: 162
-      m_Kind: 2
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 108
-      m_Height: 108
-      m_Kind: 2
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 81
-      m_Height: 81
-      m_Kind: 2
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 192
-      m_Height: 192
-      m_Kind: 0
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 144
-      m_Height: 144
-      m_Kind: 0
-      m_SubKind: 
-    - m_Textures: []
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-      m_Height: 96
-      m_Kind: 0
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-    - m_Textures: []
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-      m_Height: 72
-      m_Kind: 0
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 48
-      m_Height: 48
-      m_Kind: 0
-      m_SubKind: 
-    - m_Textures: []
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-      m_Height: 36
-      m_Kind: 0
-      m_SubKind: 
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-      m_Width: 192
-      m_Height: 192
-      m_Kind: 1
-      m_SubKind: 
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-      m_Width: 144
-      m_Height: 144
-      m_Kind: 1
-      m_SubKind: 
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-      m_Height: 96
-      m_Kind: 1
-      m_SubKind: 
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-      m_Height: 72
-      m_Kind: 1
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 48
-      m_Height: 48
-      m_Kind: 1
-      m_SubKind: 
-    - m_Textures: []
-      m_Width: 36
-      m_Height: 36
-      m_Kind: 1
-      m_SubKind: 
+  m_BuildTargetPlatformIcons: []
   m_BuildTargetBatching:
   - m_BuildTarget: Standalone
     m_StaticBatching: 1
@@ -719,8 +627,7 @@ PlayerSettings:
   gcIncremental: 0
   assemblyVersionValidation: 1
   gcWBarrierValidation: 0
-  apiCompatibilityLevelPerPlatform:
-    Android: 3
+  apiCompatibilityLevelPerPlatform: {}
   m_RenderingPath: 1
   m_MobileRenderingPath: 1
   metroPackageName: Template_3D