diff --git a/java_console/io/src/com/rusefi/binaryprotocol/BinaryProtocolHolder.java b/java_console/io/src/com/rusefi/binaryprotocol/BinaryProtocolHolder.java
index 3c709c82bb..f06d6e98d9 100644
--- a/java_console/io/src/com/rusefi/binaryprotocol/BinaryProtocolHolder.java
+++ b/java_console/io/src/com/rusefi/binaryprotocol/BinaryProtocolHolder.java
@@ -4,6 +4,8 @@ import com.opensr5.Logger;
 import com.rusefi.io.IoStream;
 import com.rusefi.io.LinkManager;
 
+import java.util.Objects;
+
 /**
  * At any given moment of time JVM manages one communication stream
  *
@@ -24,6 +26,7 @@ public enum BinaryProtocolHolder {
     }
 
     public static BinaryProtocol getCurrentStreamState() {
+        Objects.requireNonNull(LinkManager.connector, "connector");
         return LinkManager.connector.getBinaryProtocol();
     }
 }
diff --git a/java_console/io/src/com/rusefi/io/LinkConnector.java b/java_console/io/src/com/rusefi/io/LinkConnector.java
index 82e068901c..60f5cbbe2b 100644
--- a/java_console/io/src/com/rusefi/io/LinkConnector.java
+++ b/java_console/io/src/com/rusefi/io/LinkConnector.java
@@ -9,7 +9,7 @@ import com.rusefi.binaryprotocol.BinaryProtocol;
 public interface LinkConnector extends LinkDecoder {
     LinkConnector VOID = new LinkConnector() {
         @Override
-        public void connect(ConnectionStateListener listener) {
+        public void connectAndReadConfiguration(ConnectionStateListener listener) {
         }
 
         @Override
@@ -31,7 +31,7 @@ public interface LinkConnector extends LinkDecoder {
         }
     };
 
-    void connect(ConnectionStateListener listener);
+    void connectAndReadConfiguration(ConnectionStateListener listener);
 
     void send(String command, boolean fireEvent) throws InterruptedException;
 
diff --git a/java_console/io/src/com/rusefi/io/LinkManager.java b/java_console/io/src/com/rusefi/io/LinkManager.java
index ebecc452ff..074bfbaf47 100644
--- a/java_console/io/src/com/rusefi/io/LinkManager.java
+++ b/java_console/io/src/com/rusefi/io/LinkManager.java
@@ -135,6 +135,11 @@ public class LinkManager {
 
     public static void startAndConnect(String port, ConnectionStateListener stateListener) {
         FileLog.MAIN.logLine("LinkManager: Starting " + port);
+        start(port);
+        connect(stateListener);
+    }
+
+    public static void start(String port) {
         if (isLogViewerMode(port)) {
             connector = LinkConnector.VOID;
         } else if (TcpConnector.isTcpPort(port)) {
@@ -143,7 +148,6 @@ public class LinkManager {
         } else {
             connector = new SerialConnector(port);
         }
-        connect(stateListener);
     }
 
     public static boolean isLogViewerMode(String port) {
@@ -157,11 +161,7 @@ public class LinkManager {
     public static void connect(ConnectionStateListener listener) {
         if (connector == null)
             throw new NullPointerException("connector");
-        connector.connect(listener);
-    }
-
-    public static void connect() {
-        connect(ConnectionStateListener.VOID);
+        connector.connectAndReadConfiguration(listener);
     }
 
     public static void send(String command, boolean fireEvent) throws InterruptedException {
diff --git a/java_console/io/src/com/rusefi/io/serial/SerialConnector.java b/java_console/io/src/com/rusefi/io/serial/SerialConnector.java
index fd94d505f1..b1dd289a79 100644
--- a/java_console/io/src/com/rusefi/io/serial/SerialConnector.java
+++ b/java_console/io/src/com/rusefi/io/serial/SerialConnector.java
@@ -20,7 +20,7 @@ public class SerialConnector implements LinkConnector {
     }
 
     @Override
-    public void connect(ConnectionStateListener listener) {
+    public void connectAndReadConfiguration(ConnectionStateListener listener) {
         FileLog.MAIN.logLine("SerialConnector: connecting");
         portHolder.listener = listener;
         FileLog.MAIN.logLine("scheduleOpening");
diff --git a/java_console/io/src/com/rusefi/io/tcp/TcpConnector.java b/java_console/io/src/com/rusefi/io/tcp/TcpConnector.java
index 3735a690d1..debea1793b 100644
--- a/java_console/io/src/com/rusefi/io/tcp/TcpConnector.java
+++ b/java_console/io/src/com/rusefi/io/tcp/TcpConnector.java
@@ -92,7 +92,7 @@ public class TcpConnector implements LinkConnector {
      * this implementation is blocking
      */
     @Override
-    public void connect(ConnectionStateListener listener) {
+    public void connectAndReadConfiguration(ConnectionStateListener listener) {
         FileLog.MAIN.logLine("Connecting to host=" + hostname + "/port=" + port);
         OutputStream os;
         BufferedInputStream stream;
diff --git a/java_console/ui/src/com/rusefi/ConsoleTools.java b/java_console/ui/src/com/rusefi/ConsoleTools.java
index cd399b1b58..e3e92eec30 100644
--- a/java_console/ui/src/com/rusefi/ConsoleTools.java
+++ b/java_console/ui/src/com/rusefi/ConsoleTools.java
@@ -40,6 +40,16 @@ public class ConsoleTools {
     }
 
     private static void saveBinaryConfig(String[] args) {
+        if (args.length < 2) {
+            System.out.println("Please specify output file name for binary configuration");
+            System.exit(-1);
+        }
+
+        String autoDetectedPort = autoDetectPort();
+        if (autoDetectedPort == null)
+            return;
+        LinkManager.startAndConnect(autoDetectedPort, ConnectionStateListener.VOID);
+
     }
 
 
diff --git a/java_console/ui/src/com/rusefi/Launcher.java b/java_console/ui/src/com/rusefi/Launcher.java
index cfcdb1340e..11dfce7ea5 100644
--- a/java_console/ui/src/com/rusefi/Launcher.java
+++ b/java_console/ui/src/com/rusefi/Launcher.java
@@ -82,6 +82,8 @@ public class Launcher {
         getConfig().getRoot().setProperty(PORT_KEY, port);
         getConfig().getRoot().setProperty(SPEED_KEY, BaudRateHolder.INSTANCE.baudRate);
 
+        LinkManager.start(port);
+
         engineSnifferPanel = new EngineSnifferPanel(getConfig().getRoot().getChild("digital_sniffer"));
         if (!LinkManager.isLogViewerMode(port))
             engineSnifferPanel.setOutpinListener(LinkManager.engineState);
diff --git a/java_console/ui/src/com/rusefi/ui/console/MainFrame.java b/java_console/ui/src/com/rusefi/ui/console/MainFrame.java
index 8fa31b4d65..2060fe8c89 100644
--- a/java_console/ui/src/com/rusefi/ui/console/MainFrame.java
+++ b/java_console/ui/src/com/rusefi/ui/console/MainFrame.java
@@ -65,7 +65,7 @@ public class MainFrame {
             }
         });
 
-        LinkManager.connect(new ConnectionStateListener() {
+        LinkManager.startAndConnect(Launcher.port, new ConnectionStateListener() {
             @Override
             public void onConnectionFailed() {
             }