diff --git a/main.cpp b/main.cpp
index b05b8022a..747d2b27d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -15,6 +15,7 @@
 
 #include <QStringList>
 #include <QApplication>
+#include <QLoggingCategory>
 #include <git2.h>
 
 QTranslator *qtTranslator, *ssrfTranslator;
@@ -23,7 +24,7 @@ int main(int argc, char **argv)
 {
 	int i;
 	bool no_filenames = true;
-
+	QLoggingCategory::setFilterRules(QStringLiteral("qt.bluetooth* = true"));
 	QApplication *application = new QApplication(argc, argv);
 	QStringList files;
 	QStringList importedFiles;
diff --git a/qtserialbluetooth.cpp b/qtserialbluetooth.cpp
index b71845657..1f0ed6b47 100644
--- a/qtserialbluetooth.cpp
+++ b/qtserialbluetooth.cpp
@@ -4,6 +4,7 @@
 #include <QtBluetooth/QBluetoothSocket>
 #include <QEventLoop>
 #include <QTimer>
+#include <QDebug>
 
 #include <libdivecomputer/custom_serial.h>
 
@@ -57,16 +58,19 @@ static int qt_serial_open(serial_t **out, dc_context_t *context, const char* dev
 
 	if (serial_port->socket->state() == QBluetoothSocket::ConnectingState) {
 		// It seems that the connection on channel 1 took more than expected. Wait another 15 seconds
+		qDebug() << "The connection on RFCOMM channel number 1 took more than expected. Wait another 15 seconds.";
 		timer.start(3 * msec);
 		loop.exec();
 	} else if (serial_port->socket->state() == QBluetoothSocket::UnconnectedState) {
 		// Try to connect on channel number 5. Maybe this is a Shearwater Petrel2 device.
+		qDebug() << "Connection on channel 1 failed. Trying on channel number 5.";
 		serial_port->socket->connectToService(remoteDeviceAddress, 5);
 		timer.start(msec);
 		loop.exec();
 
 		if (serial_port->socket->state() == QBluetoothSocket::ConnectingState) {
 			// It seems that the connection on channel 5 took more than expected. Wait another 15 seconds
+			qDebug() << "The connection on RFCOMM channel number 5 took more than expected. Wait another 15 seconds.";
 			timer.start(3 * msec);
 			loop.exec();
 		}
@@ -77,6 +81,8 @@ static int qt_serial_open(serial_t **out, dc_context_t *context, const char* dev
 
 		// Get the latest error and try to match it with one from libdivecomputer
 		QBluetoothSocket::SocketError err = serial_port->socket->error();
+		qDebug() << "Failed to connect to device " << devaddr << ". Device state " << serial_port->socket->state() << ". Error: " << err;
+
 		switch(err) {
 		case QBluetoothSocket::HostNotFoundError:
 		case QBluetoothSocket::ServiceNotFoundError: