diff --git a/src/comm/MAVLinkProtocol.cc b/src/comm/MAVLinkProtocol.cc
index 9c1390adde19cbfc4ef1ac184f09400681cd713e..0c43dbd6e07039c4f96c598fc85b42f50f3c8600 100644
--- a/src/comm/MAVLinkProtocol.cc
+++ b/src/comm/MAVLinkProtocol.cc
@@ -390,14 +390,14 @@ void MAVLinkProtocol::sendHeartbeat()
         mavlink_msg_heartbeat_pack(getSystemId(), getComponentId(),&beat, OCU, MAV_AUTOPILOT_GENERIC);
         sendMessage(beat);
     }
-    //if (m_authEnabled) {
-        //mavlink_message_t msg;
-        //mavlink_auth_key_t auth;
-        //if (m_authKey.length() != MAVLINK_MSG_AUTH_KEY_FIELD_KEY_LEN) m_authKey.resize(MAVLINK_MSG_AUTH_KEY_FIELD_KEY_LEN);
-        //strcpy(auth.key, m_authKey.toStdString().c_str());
-        //mavlink_msg_auth_key_encode(getSystemId(), getComponentId(), &msg, &auth);
-        //sendMessage(msg);
-    //}
+    if (m_authEnabled) {
+        mavlink_message_t msg;
+        mavlink_auth_key_t auth;
+        if (m_authKey.length() != MAVLINK_MSG_AUTH_KEY_FIELD_KEY_LEN) m_authKey.resize(MAVLINK_MSG_AUTH_KEY_FIELD_KEY_LEN);
+        strcpy(auth.key, m_authKey.toStdString().c_str());
+        mavlink_msg_auth_key_encode(getSystemId(), getComponentId(), &msg, &auth);
+        sendMessage(msg);
+    }
 }
 
 /** @param enabled true to enable heartbeats emission at heartbeatRate, false to disable */
diff --git a/src/comm/SerialLink.cc b/src/comm/SerialLink.cc
index bffdddcaec4e161fb428f7bf907ee52ec95d97ec..9efe0f309b19ac0ff66fe809053dc993f7885d95 100644
--- a/src/comm/SerialLink.cc
+++ b/src/comm/SerialLink.cc
@@ -173,7 +173,7 @@ void SerialLink::readBytes()
         const qint64 maxLength = 2048;
         char data[maxLength];
         qint64 numBytes = port->bytesAvailable();
-		//qDebug() << "numBytes: " << numBytes; 
+        //qDebug() << "numBytes: " << numBytes;
 
         if(numBytes > 0) {
             /* Read as much data in buffer as possible without overflow */
diff --git a/src/uas/UAS.cc b/src/uas/UAS.cc
index 20423372b40e5af2a2c11a944c5bbcb96888f7e0..a77f6aec582c2009e1e6358bc12a02742b6db742 100644
--- a/src/uas/UAS.cc
+++ b/src/uas/UAS.cc
@@ -690,15 +690,15 @@ void UAS::receiveMessage(LinkInterface* link, mavlink_message_t message)
         }
         break;
 
-        //case MAVLINK_MSG_ID_SCALED_PRESSURE: {
-            //mavlink_scaled_pressure_t pressure;
-            //mavlink_msg_scaled_pressure_decode(&message, &pressure);
-            //quint64 time = this->getUnixTime(pressure.usec);
-            //emit valueChanged(uasId, "abs pressure", "hPa", pressure.press_abs, time);
-            //emit valueChanged(uasId, "diff pressure", "hPa", pressure.press_diff, time);
-            //emit valueChanged(uasId, "temperature", "C", pressure.temperature/100.0, time);
-        //}
-        //break;
+        case MAVLINK_MSG_ID_SCALED_PRESSURE: {
+            mavlink_scaled_pressure_t pressure;
+            mavlink_msg_scaled_pressure_decode(&message, &pressure);
+            quint64 time = this->getUnixTime(pressure.usec);
+            emit valueChanged(uasId, "abs pressure", "hPa", pressure.press_abs, time);
+            emit valueChanged(uasId, "diff pressure", "hPa", pressure.press_diff, time);
+            emit valueChanged(uasId, "temperature", "C", pressure.temperature/100.0, time);
+        }
+        break;
 
         case MAVLINK_MSG_ID_RC_CHANNELS_RAW: {
             mavlink_rc_channels_raw_t channels;
@@ -1304,7 +1304,7 @@ void UAS::getStatusForCode(int statusCode, QString& uasState, QString& stateDesc
         uasState = tr("EMERGENCY");
         stateDescription = tr("EMERGENCY: Land Immediately!");
         break;
-    //case MAV_STATE_HILSIM:
+        //case MAV_STATE_HILSIM:
         //uasState = tr("HIL SIM");
         //stateDescription = tr("HIL Simulation, Sensors read from SIM");
         //break;
@@ -1975,24 +1975,24 @@ bool UAS::emergencyKILL()
 void UAS::startHil()
 {
 
-    //mavlink_message_t msg;
-    //// TODO Replace MG System ID with static function call and allow to change ID in GUI
-    //mavlink_msg_action_pack(MG::SYSTEM::ID, MG::SYSTEM::COMPID, &msg, this->getUASID(), MAV_COMP_ID_IMU,(int)MAV_ACTION_START_HILSIM);
-    //// Send message twice to increase chance of reception
-    //sendMessage(msg);
-    //sendMessage(msg);
+    mavlink_message_t msg;
+    // TODO Replace MG System ID with static function call and allow to change ID in GUI
+    mavlink_msg_action_pack(MG::SYSTEM::ID, MG::SYSTEM::COMPID, &msg, this->getUASID(), MAV_COMP_ID_IMU,(int)MAV_ACTION_START_HILSIM);
+    // Send message twice to increase chance of reception
+    sendMessage(msg);
+    sendMessage(msg);
 
 }
 
 void UAS::stopHil()
 {
 
-    //mavlink_message_t msg;
-    //// TODO Replace MG System ID with static function call and allow to change ID in GUI
-    //mavlink_msg_action_pack(MG::SYSTEM::ID, MG::SYSTEM::COMPID, &msg, this->getUASID(), MAV_COMP_ID_IMU,(int)MAV_ACTION_STOP_HILSIM);
-    //// Send message twice to increase chance of reception
-    //sendMessage(msg);
-    //sendMessage(msg);
+    mavlink_message_t msg;
+    // TODO Replace MG System ID with static function call and allow to change ID in GUI
+    mavlink_msg_action_pack(MG::SYSTEM::ID, MG::SYSTEM::COMPID, &msg, this->getUASID(), MAV_COMP_ID_IMU,(int)MAV_ACTION_STOP_HILSIM);
+    // Send message twice to increase chance of reception
+    sendMessage(msg);
+    sendMessage(msg);
 
 }