diff --git a/BookAStar.sln b/BookAStar.sln
index cf37a60d..183b2925 100644
--- a/BookAStar.sln
+++ b/BookAStar.sln
@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 14
-VisualStudioVersion = 14.0.25123.0
+VisualStudioVersion = 14.0.25420.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BookAStar.Droid", "BookAStar\BookAStar.Droid\BookAStar.Droid.csproj", "{2A8C2BD7-B1B6-4D74-A3FC-3F5DB3BE325E}"
 EndProject
diff --git a/BookAStar/BookAStar.Droid/Helpers/SimpleJsonPostMethod.cs b/BookAStar/BookAStar.Droid/Helpers/SimpleJsonPostMethod.cs
index 7b200659..4cc139e4 100644
--- a/BookAStar/BookAStar.Droid/Helpers/SimpleJsonPostMethod.cs
+++ b/BookAStar/BookAStar.Droid/Helpers/SimpleJsonPostMethod.cs
@@ -48,7 +48,7 @@ namespace Yavsc.Helpers
 			request.SendChunked = true;
 			request.TransferEncoding = "UTF-8";
             if (authorizationHeader!=null) 
-                request.Headers.Add($"Authorization: Bearer {authorizationHeader}");
+                request.Headers.Add($"Authorization: {authorizationHeader}");
         }
 
         public static string BasePath { get; private set; } = "http://dev.pschneider.fr/api/";
diff --git a/BookAStar/BookAStar.Droid/MainActivity.cs b/BookAStar/BookAStar.Droid/MainActivity.cs
index 834ee3b6..cf78b0b6 100644
--- a/BookAStar/BookAStar.Droid/MainActivity.cs
+++ b/BookAStar/BookAStar.Droid/MainActivity.cs
@@ -293,7 +293,8 @@ namespace BookAStar.Droid
         public TAnswer InvokeApi<TAnswer>(string method, object arg)
         {
             using (var m =
-                new SimpleJsonPostMethod(method,
+                new SimpleJsonPostMethod(
+                    method, "Bearer "+
                 MainSettings.CurrentUser.YavscTokens.AccessToken
                 ))
             {
@@ -304,9 +305,10 @@ namespace BookAStar.Droid
         public object InvokeApi(string method, object arg)
         {
             using (var m =
-                new SimpleJsonPostMethod(method,
+                new SimpleJsonPostMethod(
+                    method, "Bearer " +
                 MainSettings.CurrentUser.YavscTokens.AccessToken
-                ))
+                )) 
             {
                 return m.InvokeJson(arg);
             }
diff --git a/BookAStar/BookAStar.Droid/Properties/AndroidManifest.xml b/BookAStar/BookAStar.Droid/Properties/AndroidManifest.xml
index a0c47dad..659bb9cf 100644
--- a/BookAStar/BookAStar.Droid/Properties/AndroidManifest.xml
+++ b/BookAStar/BookAStar.Droid/Properties/AndroidManifest.xml
@@ -29,13 +29,14 @@
 	<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
 	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 	<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-	<permission android:name="com.xamarin.mobilecrm.permission.MAPS_RECEIVE" android:protectionLevel="signature" />
-	<uses-permission android:name="com.xamarin.mobilecrm.permission.MAPS_RECEIVE" />
-	<permission android:name="fr.pschneider.bas.permission.C2D_MESSAGE" />
+	<permission android:name="fr.pschneider.bas.permission.MAPS_RECEIVE" android:protectionLevel="signature" />
+	<uses-permission android:name="fr.pschneider.bas.permission.MAPS_RECEIVE" />
+	<permission android:name="fr.pschneider.bas.permission.C2D_MESSAGE" android:protectionLevel="signature"  />
 	<uses-permission android:name="fr.pschneider.bas.permission.C2D_MESSAGE" />
 	<uses-permission android:name="com.google.android.c2dm.intent.RECEIVE" />
 	<uses-permission android:name="com.google.android.c2dm.intent.REGISTRATION" />
 	<uses-permission android:name="com.google.android.c2dm.intent.RETRY" />
 	<uses-permission android:name="android.permission.ACCOUNT_MANAGER" />
 	<uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
+  <uses-permission android:name="android.permission.GET_ACCOUNTS" />
 </manifest>
\ No newline at end of file
diff --git a/BookAStar/BookAStar.Droid/Services/GcmRegistrationIntentService.cs b/BookAStar/BookAStar.Droid/Services/GcmRegistrationIntentService.cs
index ac849504..9ede457f 100644
--- a/BookAStar/BookAStar.Droid/Services/GcmRegistrationIntentService.cs
+++ b/BookAStar/BookAStar.Droid/Services/GcmRegistrationIntentService.cs
@@ -44,9 +44,23 @@ namespace BookAStar.Droid
 				Log.Info ("RegistrationIntentService", "Calling InstanceID.GetToken");
 				lock (locker)
 				{
-                    
-                    var instanceID = InstanceID.GetInstance (this);
-					var senderid = MainSettings.GoogleSenderId;
+
+                    var instanceID = InstanceID.GetInstance(this);
+
+#if DEBUG
+                    try
+                    {
+                        instanceID.DeleteInstanceID();
+
+                    }
+                    catch(Exception ex)
+                    {
+                        Debug.WaitForDebugger();
+                        Log.Debug("bas.GCM", ex.StackTrace.ToString());
+                    }
+#endif
+
+                    var senderid = MainSettings.GoogleSenderId;
 					var token = instanceID.GetToken ( senderid,
 						 GoogleCloudMessaging.InstanceIdScope, null);
 
diff --git a/BookAStar/BookAStar.Droid/Services/MyGcmIntentService.cs b/BookAStar/BookAStar.Droid/Services/MyGcmIntentService.cs
index aa2007fd..b6ed58f1 100644
--- a/BookAStar/BookAStar.Droid/Services/MyGcmIntentService.cs
+++ b/BookAStar/BookAStar.Droid/Services/MyGcmIntentService.cs
@@ -99,7 +99,7 @@ namespace BookAStar.Droid
 		void SubscribeGCM ()
 		{
 			Context context = this.ApplicationContext;
-			string senders = "325408689282"; 
+			string senders = MainSettings.GoogleSenderId; 
 			// Resources.GetString(GoogleSenderId);
 			Intent intent = new Intent ("com.google.android.c2dm.intent.REGISTER");
 			intent.SetPackage ("com.google.android.gsf");
diff --git a/BookAStar/BookAStar.Droid/app.config b/BookAStar/BookAStar.Droid/app.config
index de5386a4..8460dd43 100644
--- a/BookAStar/BookAStar.Droid/app.config
+++ b/BookAStar/BookAStar.Droid/app.config
@@ -4,7 +4,7 @@
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
         <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-8.0.0.0" newVersion="8.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
diff --git a/BookAStar/BookAStar.iOS/BookAStar.iOS.csproj b/BookAStar/BookAStar.iOS/BookAStar.iOS.csproj
index b57c0800..1c69864b 100644
--- a/BookAStar/BookAStar.iOS/BookAStar.iOS.csproj
+++ b/BookAStar/BookAStar.iOS/BookAStar.iOS.csproj
@@ -90,6 +90,7 @@
   <ItemGroup>
     <Compile Include="Main.cs" />
     <Compile Include="AppDelegate.cs" />
+    <None Include="app.config" />
     <None Include="Entitlements.plist" />
     <None Include="Info.plist" />
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -151,4 +152,4 @@
     </PropertyGroup>
     <Error Condition="!Exists('..\..\packages\Xamarin.Forms.2.0.0.6482\build\portable-win+net45+wp80+win81+wpa81+MonoAndroid10+MonoTouch10+Xamarin.iOS10\Xamarin.Forms.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Xamarin.Forms.2.0.0.6482\build\portable-win+net45+wp80+win81+wpa81+MonoAndroid10+MonoTouch10+Xamarin.iOS10\Xamarin.Forms.targets'))" />
   </Target>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/BookAStar/BookAStar.iOS/app.config b/BookAStar/BookAStar.iOS/app.config
new file mode 100644
index 00000000..8460dd43
--- /dev/null
+++ b/BookAStar/BookAStar.iOS/app.config
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
+</configuration>
\ No newline at end of file
diff --git a/BookAStar/BookAStar/App.xaml.cs b/BookAStar/BookAStar/App.xaml.cs
index 412de277..adb41003 100644
--- a/BookAStar/BookAStar/App.xaml.cs
+++ b/BookAStar/BookAStar/App.xaml.cs
@@ -86,7 +86,8 @@ namespace BookAStar
         public async Task PostDeviceInfo()
         {
             var res = PlateformSpecificInstance.InvokeApi(
-                "gcm/register", PlateformSpecificInstance.GetDeviceInfo());
+                "gcm/register", 
+                PlateformSpecificInstance.GetDeviceInfo());
         }
 
     }
diff --git a/BookAStar/BookAStar/Helpers/MainSettings.cs b/BookAStar/BookAStar/Helpers/MainSettings.cs
index 33bd6581..5b69b109 100644
--- a/BookAStar/BookAStar/Helpers/MainSettings.cs
+++ b/BookAStar/BookAStar/Helpers/MainSettings.cs
@@ -58,7 +58,7 @@ namespace BookAStar
 			};
         private static readonly Dictionary<string, double> environ = new Dictionary<string, double>();
 
-        public static readonly string YavscApiUrl = "dev.pschneider.fr";
+        public static readonly string YavscApiUrl = "http://dev.pschneider.fr/api";
 
 		#endregion
 
diff --git a/Yavsc.Api/project.lock.json b/Yavsc.Api/project.lock.json
index a111b505..f3013ca9 100644
--- a/Yavsc.Api/project.lock.json
+++ b/Yavsc.Api/project.lock.json
@@ -120,6 +120,18 @@
           "lib/net45/System.Interactive.Async.dll": {}
         }
       },
+      "Json.NET.Web/1.0.49": {
+        "type": "package",
+        "dependencies": {
+          "Newtonsoft.Json": "8.0.3"
+        },
+        "compile": {
+          "lib/portable45-net45+win8+wpa81/Json.NET.Web.dll": {}
+        },
+        "runtime": {
+          "lib/portable45-net45+win8+wpa81/Json.NET.Web.dll": {}
+        }
+      },
       "Microsoft.AspNet.Authentication/1.0.0-rc1-final": {
         "type": "package",
         "dependencies": {
@@ -754,7 +766,11 @@
       },
       "Yavsc.Client/1.0.0": {
         "type": "project",
-        "framework": ".NETPortable,Version=v4.5,Profile=Profile111"
+        "framework": ".NETPortable,Version=v4.5,Profile=Profile111",
+        "dependencies": {
+          "Json.NET.Web": "1.0.49",
+          "Newtonsoft.Json": "9.0.1"
+        }
       }
     },
     ".NETFramework,Version=v4.5.1/win7-x86": {
@@ -875,6 +891,18 @@
           "lib/net45/System.Interactive.Async.dll": {}
         }
       },
+      "Json.NET.Web/1.0.49": {
+        "type": "package",
+        "dependencies": {
+          "Newtonsoft.Json": "8.0.3"
+        },
+        "compile": {
+          "lib/portable45-net45+win8+wpa81/Json.NET.Web.dll": {}
+        },
+        "runtime": {
+          "lib/portable45-net45+win8+wpa81/Json.NET.Web.dll": {}
+        }
+      },
       "Microsoft.AspNet.Authentication/1.0.0-rc1-final": {
         "type": "package",
         "dependencies": {
@@ -1509,7 +1537,11 @@
       },
       "Yavsc.Client/1.0.0": {
         "type": "project",
-        "framework": ".NETPortable,Version=v4.5,Profile=Profile111"
+        "framework": ".NETPortable,Version=v4.5,Profile=Profile111",
+        "dependencies": {
+          "Json.NET.Web": "1.0.49",
+          "Newtonsoft.Json": "9.0.1"
+        }
       }
     },
     ".NETFramework,Version=v4.5.1/win7-x64": {
@@ -1630,6 +1662,18 @@
           "lib/net45/System.Interactive.Async.dll": {}
         }
       },
+      "Json.NET.Web/1.0.49": {
+        "type": "package",
+        "dependencies": {
+          "Newtonsoft.Json": "8.0.3"
+        },
+        "compile": {
+          "lib/portable45-net45+win8+wpa81/Json.NET.Web.dll": {}
+        },
+        "runtime": {
+          "lib/portable45-net45+win8+wpa81/Json.NET.Web.dll": {}
+        }
+      },
       "Microsoft.AspNet.Authentication/1.0.0-rc1-final": {
         "type": "package",
         "dependencies": {
@@ -2264,7 +2308,11 @@
       },
       "Yavsc.Client/1.0.0": {
         "type": "project",
-        "framework": ".NETPortable,Version=v4.5,Profile=Profile111"
+        "framework": ".NETPortable,Version=v4.5,Profile=Profile111",
+        "dependencies": {
+          "Json.NET.Web": "1.0.49",
+          "Newtonsoft.Json": "9.0.1"
+        }
       }
     }
   },
@@ -2383,6 +2431,16 @@
         "lib/portable-windows8+net45+wp8/System.Interactive.Async.XML"
       ]
     },
+    "Json.NET.Web/1.0.49": {
+      "type": "package",
+      "sha512": "1lhQBN6Oi5IEf2BIhBgqWH3r9uBUitvsoQi0QlC+8IkFYyHq+076OorXbcTxmcXgSsmc66LyoUpqG62BnLOWgg==",
+      "files": [
+        "Json.NET.Web.1.0.49.nupkg",
+        "Json.NET.Web.1.0.49.nupkg.sha512",
+        "Json.NET.Web.nuspec",
+        "lib/portable45-net45+win8+wpa81/Json.NET.Web.dll"
+      ]
+    },
     "Microsoft.AspNet.Authentication/1.0.0-rc1-final": {
       "type": "package",
       "serviceable": true,
diff --git a/Yavsc.Client/Yavsc.Client.csproj b/Yavsc.Client/Yavsc.Client.csproj
index b21ce6f0..d7771e2d 100644
--- a/Yavsc.Client/Yavsc.Client.csproj
+++ b/Yavsc.Client/Yavsc.Client.csproj
@@ -48,6 +48,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="app.config" />
     <None Include="packages.config">
       <SubType>Designer</SubType>
     </None>
@@ -57,8 +58,8 @@
       <HintPath>..\packages\Json.NET.Web.1.0.49\lib\portable45-net45+win8+wpa81\Json.NET.Web.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=8.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\packages\Newtonsoft.Json.8.0.3\lib\portable-net40+sl5+wp80+win8+wpa81\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\packages\Newtonsoft.Json.9.0.1\lib\portable-net45+wp80+win8+wpa81\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
   </ItemGroup>
diff --git a/Yavsc.Client/app.config b/Yavsc.Client/app.config
new file mode 100644
index 00000000..8460dd43
--- /dev/null
+++ b/Yavsc.Client/app.config
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
+</configuration>
\ No newline at end of file
diff --git a/Yavsc.Client/packages.config b/Yavsc.Client/packages.config
index dc205314..3e864e39 100644
--- a/Yavsc.Client/packages.config
+++ b/Yavsc.Client/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Json.NET.Web" version="1.0.49" targetFramework="portable45-net45+win8+wpa81" />
-  <package id="Newtonsoft.Json" version="8.0.3" targetFramework="portable45-net45+win8+wpa81" />
+  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="portable45-net45+win8+wpa81" />
 </packages>
\ No newline at end of file
diff --git a/wrap/Yavsc.Client/project.json b/wrap/Yavsc.Client/project.json
index 451528f0..cbd22f76 100644
--- a/wrap/Yavsc.Client/project.json
+++ b/wrap/Yavsc.Client/project.json
@@ -6,6 +6,10 @@
       "bin": {
         "assembly": "../../Yavsc.Client/obj/{configuration}/Yavsc.Client.dll",
         "pdb": "../../Yavsc.Client/obj/{configuration}/Yavsc.Client.pdb"
+      },
+      "dependencies": {
+        "Json.NET.Web": "1.0.49",
+        "Newtonsoft.Json": "9.0.1"
       }
     }
   }