diff --git a/src/VehicleSetup/FirmwareUpgradeController.cc b/src/VehicleSetup/FirmwareUpgradeController.cc
index 3d195f7e555e1b57e79b24d895b322617aae99da..a8a27d8031900c5828faacdedc5a6b89f3154a43 100644
--- a/src/VehicleSetup/FirmwareUpgradeController.cc
+++ b/src/VehicleSetup/FirmwareUpgradeController.cc
@@ -416,8 +416,8 @@ QHash<FirmwareUpgradeController::FirmwareIdentifier, QString>* FirmwareUpgradeCo
     case QGCSerialPortInfo::BoardTypeSikRadio:
         boardId = Bootloader::boardID3DRRadio;
         break;
-    case QGCSerialPortInfo::BoardTypeUnknown:
-        qWarning() << "Internal error";
+    default:
+        qWarning() << "Internal error: invalid board type for flashing" << boardType;
         boardId = Bootloader::boardIDPX4FMUV2;
         break;
     }
diff --git a/src/VehicleSetup/PX4FirmwareUpgradeThread.cc b/src/VehicleSetup/PX4FirmwareUpgradeThread.cc
index 6b7b783009ae6f1fe9f3807276d73047f3123a69..6bf362866f5b0dc31af597e920878a4feb92fb57 100644
--- a/src/VehicleSetup/PX4FirmwareUpgradeThread.cc
+++ b/src/VehicleSetup/PX4FirmwareUpgradeThread.cc
@@ -141,7 +141,7 @@ bool PX4FirmwareUpgradeThreadWorker::_findBoardFromPorts(QGCSerialPortInfo& port
         qCDebug(FirmwareUpgradeVerboseLog) << "\tproduct ID:" << info.productIdentifier();
         
         boardType = info.boardType();
-        if (boardType != QGCSerialPortInfo::BoardTypeUnknown) {
+        if (info.canFlash()) {
             portInfo = info;
             return true;
         }
diff --git a/src/comm/QGCSerialPortInfo.cc b/src/comm/QGCSerialPortInfo.cc
index ee5908e7e503031a9454043ac5184eddd19126d9..0b6ef91930f13dc19d582a797acf25c596982a2a 100644
--- a/src/comm/QGCSerialPortInfo.cc
+++ b/src/comm/QGCSerialPortInfo.cc
@@ -39,6 +39,7 @@ static const struct VIDPIDMapInfo_s {
     { QGCSerialPortInfo::px4VendorId,           QGCSerialPortInfo::AeroCoreProductId,                   QGCSerialPortInfo::BoardTypeAeroCore,   "Found AeroCore" },
     { QGCSerialPortInfo::threeDRRadioVendorId,  QGCSerialPortInfo::threeDRRadioProductId,               QGCSerialPortInfo::BoardTypeSikRadio,   "Found SiK Radio" },
     { QGCSerialPortInfo::siLabsRadioVendorId,   QGCSerialPortInfo::siLabsRadioProductId,                QGCSerialPortInfo::BoardTypeSikRadio,   "Found SiK Radio" },
+    { QGCSerialPortInfo::ubloxRTKVendorId,      QGCSerialPortInfo::ubloxRTKProductId,                   QGCSerialPortInfo::BoardTypeRTKGPS,     "Found RTK GPS" },
 };
 
 QGCSerialPortInfo::QGCSerialPortInfo(void) :
@@ -128,3 +129,10 @@ bool QGCSerialPortInfo::isBootloader(void) const
     // FIXME: Check SerialLink bootloade detect code which is different
     return boardTypePixhawk() && description().contains("BL");
 }
+
+bool QGCSerialPortInfo::canFlash(void)
+{
+    BoardType_t boardType = this->boardType();
+
+    return boardType != QGCSerialPortInfo::BoardTypeUnknown && boardType != QGCSerialPortInfo::BoardTypeRTKGPS;
+}
diff --git a/src/comm/QGCSerialPortInfo.h b/src/comm/QGCSerialPortInfo.h
index 10ec2fb2beaa97ac6aa903608df5d9c9c8bd958d..8e95afa59e6d57131bbfdeb23e568909af3184e7 100644
--- a/src/comm/QGCSerialPortInfo.h
+++ b/src/comm/QGCSerialPortInfo.h
@@ -46,6 +46,7 @@ public:
         BoardTypePX4Flow,
         BoardTypeSikRadio,
         BoardTypeAeroCore,
+        BoardTypeRTKGPS,
         BoardTypeUnknown
     } BoardType_t;
 
@@ -68,6 +69,9 @@ public:
     static const int siLabsRadioVendorId =                  0x10c4; ///< Vendor ID for SILabs Radio
     static const int siLabsRadioProductId =                 0xea60; ///< Product ID for SILabs Radio
 
+    static const int ubloxRTKVendorId =                     5446;   ///< Vendor ID for ublox RTK
+    static const int ubloxRTKProductId =                    424;    ///< Product ID for ublox RTK
+
     QGCSerialPortInfo(void);
     QGCSerialPortInfo(const QSerialPort & port);
 
@@ -76,6 +80,9 @@ public:
 
     BoardType_t boardType(void) const;
 
+    /// @return true: we can flash this board type
+    bool canFlash(void);
+
     /// @return true: board is a Pixhawk board
     bool boardTypePixhawk(void) const;