diff --git a/cordova/platforms/android/AndroidManifest.xml b/cordova/platforms/android/AndroidManifest.xml
index 26fcc99..bc05cb6 100644
--- a/cordova/platforms/android/AndroidManifest.xml
+++ b/cordova/platforms/android/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<manifest android:hardwareAccelerated="true" android:versionCode="361" android:versionName="0.3.61" package="ch.safechat" xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest android:hardwareAccelerated="true" android:versionCode="506" android:versionName="0.5.6" package="ch.safechat" xmlns:android="http://schemas.android.com/apk/res/android">
     <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true" android:xlargeScreens="true" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
diff --git a/cordova/platforms/android/assets/www/cordova_plugins.js b/cordova/platforms/android/assets/www/cordova_plugins.js
index 69c95dc..a9fdf5b 100644
--- a/cordova/platforms/android/assets/www/cordova_plugins.js
+++ b/cordova/platforms/android/assets/www/cordova_plugins.js
@@ -3,21 +3,24 @@ module.exports = [
     {
         "file": "plugins/cordova-plugin-whitelist/whitelist.js",
         "id": "cordova-plugin-whitelist.whitelist",
+        "pluginId": "cordova-plugin-whitelist",
         "runs": true
     },
     {
-        "file": "plugins/de.appplant.cordova.plugin.background-mode/www/background-mode.js",
-        "id": "de.appplant.cordova.plugin.background-mode.BackgroundMode",
+        "file": "plugins/cordova-plugin-device/www/device.js",
+        "id": "cordova-plugin-device.device",
+        "pluginId": "cordova-plugin-device",
         "clobbers": [
-            "cordova.plugins.backgroundMode",
-            "plugin.backgroundMode"
+            "device"
         ]
     },
     {
-        "file": "plugins/cordova-plugin-device/www/device.js",
-        "id": "cordova-plugin-device.device",
+        "file": "plugins/de.appplant.cordova.plugin.background-mode/www/background-mode.js",
+        "id": "de.appplant.cordova.plugin.background-mode.BackgroundMode",
+        "pluginId": "de.appplant.cordova.plugin.background-mode",
         "clobbers": [
-            "device"
+            "cordova.plugins.backgroundMode",
+            "plugin.backgroundMode"
         ]
     }
 ];
@@ -25,8 +28,8 @@ module.exports.metadata =
 // TOP OF METADATA
 {
     "cordova-plugin-whitelist": "1.0.0",
-    "de.appplant.cordova.plugin.background-mode": "0.6.4",
-    "cordova-plugin-device": "1.1.0"
+    "cordova-plugin-device": "1.1.0",
+    "de.appplant.cordova.plugin.background-mode": "0.6.4"
 }
 // BOTTOM OF METADATA
 });
\ No newline at end of file
diff --git a/cordova/platforms/android/res/xml/config.xml b/cordova/platforms/android/res/xml/config.xml
index e5c2c0e..e31e53b 100644
--- a/cordova/platforms/android/res/xml/config.xml
+++ b/cordova/platforms/android/res/xml/config.xml
@@ -1,10 +1,17 @@
 <?xml version='1.0' encoding='utf-8'?>
-<widget id="ch.safechat" version="0.3.61" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
+<widget id="ch.safechat" version="0.5.6" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
     <preference name="loglevel" value="DEBUG" />
     <feature name="Whitelist">
         <param name="android-package" value="org.apache.cordova.whitelist.WhitelistPlugin" />
         <param name="onload" value="true" />
     </feature>
+    <feature name="Device">
+        <param name="android-package" value="org.apache.cordova.device.Device" />
+    </feature>
+    <feature name="BackgroundMode">
+        <param name="android-package" value="de.appplant.cordova.plugin.background.BackgroundMode" />
+    </feature>
+    <preference name="KeepRunning" value="true" />
     <allow-intent href="market:*" />
     <name>SafeChat</name>
     <description>
diff --git a/nodejs/public/javascripts/safechat.js b/nodejs/public/javascripts/safechat.js
index 465f0f2..83bad55 100644
--- a/nodejs/public/javascripts/safechat.js
+++ b/nodejs/public/javascripts/safechat.js
@@ -47,6 +47,27 @@ function pad(n) {
     return n<10 ? '0'+n : n
 }
 
+/// Convert number of bytes to readable text
+function size(num) {
+    if (num>0.6*1024) {
+        if (num>0.6*1024*1024) {
+            if (num>0.6*1024*1024*1024) {
+                if (num>0.6*1024*1024*1024*1024) {
+                    return Math.round(num/1024/1024/1024/1024)+"TB";
+                } else {
+                    return Math.round(num/1024/1024/1024)+"GB";
+                }
+            } else {
+                return Math.round(num/1024/1024)+"MB";
+            }
+        } else {
+            return Math.round(num/1024)+"kB";
+        }
+    } else {
+        return num+"B";
+    }
+}
+
 var reboottimer = null;
 /// Show error messsage
 /** Fades in an error message and logs to console.
@@ -396,18 +417,19 @@ function recordvideo() {
         $("#videorecorder").show();
         recorder = new MediaStreamRecorder({
             video: {
-                mandatory: {
-                    maxWidth: 400,
-                    maxHeight: 400
-                }
+                width: {ideal: 180},
+                height: {ideal: 160}
             },
             audio: true
         });
         recorder.on("ready", function() {
             $("#videorecorder video").attr("src", recorder.preview());
+            $("#videorecorder video").css("width", 180);
+            $("#videorecorder video").css("height", 160);
+            $("#videorecorder video").attr("width", 180);
+            $("#videorecorder video").attr("height", 160);
             recorder.start();
         });
-        recorder.on('')
     } catch (e) {
         console.log(e);
         error("cannot access camera", true);
@@ -440,8 +462,8 @@ function previewfile(content, type, name) {
                 $("#preview").append(img);
                 success('image is ready to be sent');
             }
-            img.title = name;
             img.src = canvas.toDataURL(file.type);
+            img.title = name+"\n"+size(img.src.length);
         }
         img.src=content;
     } else if (type.match('^video/')) {
@@ -450,13 +472,13 @@ function previewfile(content, type, name) {
         video.setAttribute("controls", "controls");
         video.setAttribute("loop", "loop");
         video.setAttribute("src", content);
-        video.setAttribute("title", name);
+        video.setAttribute("title", name+"\n"+size(content.length));
         $("#preview").append(video);
     } else {
         filecontent.push({name: name, type: type, content: content});
         var img = document.createElement("img");
         img.src = "images/Document_sans_PICOL-PIctorial-COmmunication-Language.svg";
-        img.title = name;
+        img.title = name+"\n"+size(content.length);
         $("#preview").append(img);
     }
 }