diff --git a/src/bluetooth/bluetooth.pro b/src/bluetooth/bluetooth.pro
index 9f2a109eea31da2dedc020bda669cd01ebf774e4..920fbe9a45aaf60a578fb479ffbc275d4e9361c6 100644
--- a/src/bluetooth/bluetooth.pro
+++ b/src/bluetooth/bluetooth.pro
@@ -166,7 +166,7 @@ config_bluez:qtHaveModule(dbus) {
     SOURCES -= qlowenergyservice.cpp
     SOURCES -= qlowenergycontroller.cpp
     SOURCES -= qlowenergycontroller_p.cpp
-} else:ios {
+} else:ios|tvos {
     DEFINES += QT_IOS_BLUETOOTH
     LIBS += -framework Foundation -framework CoreBluetooth
 
@@ -209,4 +209,3 @@ config_bluez:qtHaveModule(dbus) {
 OTHER_FILES +=
 
 HEADERS += $$PUBLIC_HEADERS $$PRIVATE_HEADERS
-
diff --git a/src/bluetooth/bluez/bluez5_helper.cpp b/src/bluetooth/bluez/bluez5_helper.cpp
index 384b9979308a8219c71fb1d2f74df8fb4a7bba05..14e064e12551d312e2e2a187cbb56b700b32633c 100644
--- a/src/bluetooth/bluez/bluez5_helper.cpp
+++ b/src/bluetooth/bluez/bluez5_helper.cpp
@@ -339,4 +339,26 @@ QString findAdapterForAddress(const QBluetoothAddress &wantedAddress, bool *ok =
     return QString(); // nothing matching found
 }
 
+/*
+    Removes every character that cannot be used in QDbusObjectPath
+
+    See QDbusUtil::isValidObjectPath(QString) for more details.
+ */
+QString sanitizeNameForDBus(const QString &text)
+{
+    QString appName = text;
+    for (int i = 0; i < appName.length(); i++) {
+        ushort us = appName[i].unicode();
+        bool valid = (us >= 'a' && us <= 'z')
+                      || (us >= 'A' && us <= 'Z')
+                      || (us >= '0' && us <= '9')
+                      || (us == '_');
+
+        if (!valid)
+            appName[i] = QLatin1Char('_');
+    }
+
+    return appName;
+}
+
 QT_END_NAMESPACE
diff --git a/src/bluetooth/bluez/bluez5_helper_p.h b/src/bluetooth/bluez/bluez5_helper_p.h
index a3f164b0518a16dbbdec4eced9232569065eb510..019fe63597bfc28ce4b9309b46f6518a0b04af9c 100644
--- a/src/bluetooth/bluez/bluez5_helper_p.h
+++ b/src/bluetooth/bluez/bluez5_helper_p.h
@@ -59,6 +59,8 @@ QT_BEGIN_NAMESPACE
 
 bool isBluez5();
 
+QString sanitizeNameForDBus(const QString& text);
+
 QString findAdapterForAddress(const QBluetoothAddress &wantedAddress, bool *ok);
 
 class QtBluezDiscoveryManagerPrivate;
diff --git a/src/bluetooth/osx/osxbtcentralmanager.mm b/src/bluetooth/osx/osxbtcentralmanager.mm
index 2f881f794a61f9f1c9e8c20da7bc0375902c7bb6..21ba1b81f7125ff6bb6b24b9f39c5e4bc1767bdc 100644
--- a/src/bluetooth/osx/osxbtcentralmanager.mm
+++ b/src/bluetooth/osx/osxbtcentralmanager.mm
@@ -43,12 +43,12 @@
 #include <algorithm>
 #include <limits>
 
-QT_BEGIN_NAMESPACE
-
 Q_DECLARE_METATYPE(QLowEnergyCharacteristic)
 Q_DECLARE_METATYPE(QLowEnergyDescriptor)
 Q_DECLARE_METATYPE(QLowEnergyHandle)
 
+QT_BEGIN_NAMESPACE
+
 namespace OSXBluetooth {
 
 NSUInteger qt_countGATTEntries(CBService *service)
@@ -80,7 +80,6 @@ NSUInteger qt_countGATTEntries(CBService *service)
 
 QT_END_NAMESPACE
 
-QT_USE_NAMESPACE
 
 @interface QT_MANGLE_NAMESPACE(OSXBTCentralManager) (PrivateAPI)
 
diff --git a/src/bluetooth/osx/osxbtutility_p.h b/src/bluetooth/osx/osxbtutility_p.h
index 3506b0d184a58f54748ec0e29145fc3ad2f70cdf..8816d6f3f2d08ad6f2ed499fd850cf83deec18c0 100644
--- a/src/bluetooth/osx/osxbtutility_p.h
+++ b/src/bluetooth/osx/osxbtutility_p.h
@@ -94,8 +94,7 @@ public:
     }
 };
 
-typedef ObjCScopedPointer<NSAutoreleasePool> AutoreleasePool;
-#define QT_BT_MAC_AUTORELEASEPOOL const OSXBluetooth::AutoreleasePool pool([[NSAutoreleasePool alloc] init])
+#define QT_BT_MAC_AUTORELEASEPOOL const QMacAutoReleasePool pool;
 
 template<class T>
 class ObjCStrongReference {
diff --git a/src/bluetooth/qbluetoothserviceinfo_bluez.cpp b/src/bluetooth/qbluetoothserviceinfo_bluez.cpp
index e3fa81d117a8ad6a893ffa6e80388e1ea1b9c3f4..d18f4bb13ccec79d944507d9734242080c314026 100644
--- a/src/bluetooth/qbluetoothserviceinfo_bluez.cpp
+++ b/src/bluetooth/qbluetoothserviceinfo_bluez.cpp
@@ -294,7 +294,7 @@ bool QBluetoothServiceInfoPrivate::registerService(const QBluetoothAddress &loca
         // create path
         profilePath = profilePathTemplate;
         profilePath.append(QString::fromLatin1("/%1%2/%3").
-                           arg(QCoreApplication::applicationName()).
+                           arg(sanitizeNameForDBus(QCoreApplication::applicationName())).
                            arg(QCoreApplication::applicationPid()).
                            arg(pathCounter.fetchAndAddOrdered(1)));
 
diff --git a/src/bluetooth/qbluetoothsocket_osx_p.h b/src/bluetooth/qbluetoothsocket_osx_p.h
index cfd653d34bfc0c13312f2eb4571df4b577920f1f..969dcef65ae512aff904acfac71475e6dc04a277 100644
--- a/src/bluetooth/qbluetoothsocket_osx_p.h
+++ b/src/bluetooth/qbluetoothsocket_osx_p.h
@@ -98,7 +98,7 @@ public:
     quint16 peerPort() const;
 
     void _q_readNotify();
-    void _q_writeNotify();
+    void _q_writeNotify() Q_DECL_OVERRIDE;
 
 private:
     // Create a socket from an external source (without connectToService).
diff --git a/src/bluetooth/qbluetoothtransferreply_bluez.cpp b/src/bluetooth/qbluetoothtransferreply_bluez.cpp
index f7f72873532f418654a5d93d4126929ec2e12827..3362b2c19db11ac47f96c1e2e92f461885a79ada 100644
--- a/src/bluetooth/qbluetoothtransferreply_bluez.cpp
+++ b/src/bluetooth/qbluetoothtransferreply_bluez.cpp
@@ -91,7 +91,7 @@ QBluetoothTransferReplyBluez::QBluetoothTransferReplyBluez(QIODevice *input, con
 
         m_agent_path = agentPath;
         m_agent_path.append(QStringLiteral("/%1%2/%3").
-                            arg(QCoreApplication::applicationName()).
+                            arg(sanitizeNameForDBus(QCoreApplication::applicationName())).
                             arg(QCoreApplication::applicationPid()).
                             arg(agentPathCounter.fetchAndAddOrdered(1)));
 
diff --git a/src/bluetooth/qlowenergycontroller.cpp b/src/bluetooth/qlowenergycontroller.cpp
index d4d41d69ac6995b96e4e5e56d36d197501211fc2..8a6a2e1d23b1bb3b96218fea3a885adfd049afa9 100644
--- a/src/bluetooth/qlowenergycontroller.cpp
+++ b/src/bluetooth/qlowenergycontroller.cpp
@@ -271,11 +271,12 @@ void QLowEnergyControllerPrivate::setError(
     case QLowEnergyController::AdvertisingError:
         errorString = QLowEnergyController::tr("Error occurred trying to start advertising");
         break;
+    case QLowEnergyController::NoError:
+        return;
+    default:
     case QLowEnergyController::UnknownError:
         errorString = QLowEnergyController::tr("Unknown Error");
         break;
-    case QLowEnergyController::NoError:
-        return;
     }
 
     emit q->error(newError);
diff --git a/src/bluetooth/qlowenergycontroller_android.cpp b/src/bluetooth/qlowenergycontroller_android.cpp
index 1ad57a8fb976e9e47db2bcdf72394b9b80e3afbf..3e3ea830f2ddfa90828c5f55457822560eb6096a 100644
--- a/src/bluetooth/qlowenergycontroller_android.cpp
+++ b/src/bluetooth/qlowenergycontroller_android.cpp
@@ -326,6 +326,14 @@ void QLowEnergyControllerPrivate::connectionUpdated(
     if (newState == QLowEnergyController::UnconnectedState
             && !(oldState == QLowEnergyController::UnconnectedState
                 || oldState == QLowEnergyController::ConnectingState)) {
+
+        // Invalidate the services if the disconnect came from the remote end.
+        // Qtherwise we disconnected via QLowEnergyController::disconnectDevice() which
+        // triggered invalidation already
+        if (!serviceList.isEmpty()) {
+            Q_ASSERT(oldState != QLowEnergyController::ClosingState);
+            invalidateServices();
+        }
         emit q->disconnected();
     } else if (newState == QLowEnergyController::ConnectedState
                && oldState != QLowEnergyController::ConnectedState ) {
diff --git a/src/bluetooth/qlowenergycontroller_osx.mm b/src/bluetooth/qlowenergycontroller_osx.mm
index 975c03c4da418313b60e79bb6cf08b4043df00af..7ca0d9ac76485356bea9b53fcff2f8a2154e61bc 100644
--- a/src/bluetooth/qlowenergycontroller_osx.mm
+++ b/src/bluetooth/qlowenergycontroller_osx.mm
@@ -132,7 +132,6 @@ UUIDList qt_servicesUuids(NSArray *services)
 
 QLowEnergyControllerPrivateOSX::QLowEnergyControllerPrivateOSX(QLowEnergyController *q)
     : q_ptr(q),
-      isConnecting(false),
       lastError(QLowEnergyController::NoError),
       controllerState(QLowEnergyController::UnconnectedState),
       addressType(QLowEnergyController::PublicAddress)
@@ -165,7 +164,6 @@ QLowEnergyControllerPrivateOSX::QLowEnergyControllerPrivateOSX(QLowEnergyControl
     : q_ptr(q),
       deviceUuid(deviceInfo.deviceUuid()),
       deviceName(deviceInfo.name()),
-      isConnecting(false),
       lastError(QLowEnergyController::NoError),
       controllerState(QLowEnergyController::UnconnectedState),
       addressType(QLowEnergyController::PublicAddress)
@@ -214,20 +212,18 @@ void QLowEnergyControllerPrivateOSX::_q_connected()
 
     controllerState = QLowEnergyController::ConnectedState;
 
-    if (!isConnecting) {
-        emit q_ptr->stateChanged(QLowEnergyController::ConnectedState);
-        emit q_ptr->connected();
-    }
+    emit q_ptr->stateChanged(QLowEnergyController::ConnectedState);
+    emit q_ptr->connected();
 }
 
 void QLowEnergyControllerPrivateOSX::_q_disconnected()
 {
     controllerState = QLowEnergyController::UnconnectedState;
 
-    if (!isConnecting) {
-        emit q_ptr->stateChanged(QLowEnergyController::UnconnectedState);
-        emit q_ptr->disconnected();
-    }
+    invalidateServices();
+    emit q_ptr->stateChanged(QLowEnergyController::UnconnectedState);
+    emit q_ptr->disconnected();
+
 }
 
 void QLowEnergyControllerPrivateOSX::_q_serviceDiscoveryFinished()
@@ -512,8 +508,6 @@ void QLowEnergyControllerPrivateOSX::connectToDevice()
                Q_FUNC_INFO, "invalid state");
     Q_ASSERT_X(!deviceUuid.isNull(), Q_FUNC_INFO,
                "invalid private controller (no device uuid)");
-    Q_ASSERT_X(!isConnecting, Q_FUNC_INFO,
-               "recursive connectToDevice call");
 
     dispatch_queue_t leQueue(OSXBluetooth::qt_LE_queue());
     if (!leQueue) {
diff --git a/src/bluetooth/qlowenergycontroller_osx_p.h b/src/bluetooth/qlowenergycontroller_osx_p.h
index 58804243b121f4986cbfe50b4ef00cc3a9569030..190f2ac5d8d976cf46a3f681cece3cbd62903f83 100644
--- a/src/bluetooth/qlowenergycontroller_osx_p.h
+++ b/src/bluetooth/qlowenergycontroller_osx_p.h
@@ -148,12 +148,6 @@ private:
     QLowEnergyController *q_ptr;
     QBluetoothUuid deviceUuid;
     QString deviceName;
-    // To be sure we set controller's state correctly
-    // (Connecting or Connected) we have to know if we're
-    // still inside connectToDevice - this is important,
-    // if a peripheral is _already_ connected from Core Bluetooth's
-    // point of view.
-    bool isConnecting;
 
     QString errorString;
     QLowEnergyController::Error lastError;
diff --git a/src/nfc/qnearfieldtarget.cpp b/src/nfc/qnearfieldtarget.cpp
index 0d57e5f32531067b4cd8bc0696a7367ac04d1f95..1cb8d30cd08d91c73fdede3967496946c9f4c1b6 100644
--- a/src/nfc/qnearfieldtarget.cpp
+++ b/src/nfc/qnearfieldtarget.cpp
@@ -135,7 +135,7 @@ static const quint16 crc_tbl[16] = {
 */
 quint16 qNfcChecksum(const char *data, uint len)
 {
-    register quint16 crc = 0x6363;
+    quint16 crc = 0x6363;
     uchar c;
     const uchar *p = reinterpret_cast<const uchar *>(data);
     while (len--) {
diff --git a/tests/auto/qlowenergycontroller/tst_qlowenergycontroller.cpp b/tests/auto/qlowenergycontroller/tst_qlowenergycontroller.cpp
index 8c924925ebc2b3a7024dba603f003ac1ab97f50a..1386f75c95c31ebcf2bce489ffe188f0f1c45da8 100644
--- a/tests/auto/qlowenergycontroller/tst_qlowenergycontroller.cpp
+++ b/tests/auto/qlowenergycontroller/tst_qlowenergycontroller.cpp
@@ -189,7 +189,7 @@ void tst_QLowEnergyController::initTestCase()
  */
 void tst_QLowEnergyController::init()
 {
-#if defined(Q_OS_ANDROID) || defined(Q_OS_IOS)
+#if defined(Q_OS_ANDROID) || defined(Q_OS_IOS) || defined(Q_OS_TVOS)
     /*
      * Add a delay to give Android/iOS stack time to catch up in between
      * the multiple connect/disconnects within each test function.
@@ -249,7 +249,7 @@ void tst_QLowEnergyController::tst_connect()
 {
     QList<QBluetoothHostInfo> localAdapters = QBluetoothLocalDevice::allDevices();
 
-#ifdef Q_OS_IOS
+#if defined(Q_OS_IOS) || defined(Q_OS_TVOS)
     if (remoteDeviceInfo.isValid())
 #else
     if (localAdapters.isEmpty() || !remoteDeviceInfo.isValid())
@@ -265,7 +265,7 @@ void tst_QLowEnergyController::tst_connect()
     else
         QCOMPARE(control.remoteName(), remoteDeviceInfo.name());
 
-#ifndef Q_OS_IOS
+#if !defined(Q_OS_IOS) && !defined(Q_OS_TVOS)
     const QBluetoothAddress localAdapter = localAdapters.at(0).address();
     QCOMPARE(control.localAddress(), localAdapter);
     QVERIFY(!control.localAddress().isNull());