diff --git a/java_console/io/src/main/java/com/rusefi/io/serial/SerialIoStream.java b/java_console/io/src/main/java/com/rusefi/io/serial/SerialIoStream.java
index 0f945d530c..51fdb36a1a 100644
--- a/java_console/io/src/main/java/com/rusefi/io/serial/SerialIoStream.java
+++ b/java_console/io/src/main/java/com/rusefi/io/serial/SerialIoStream.java
@@ -69,7 +69,7 @@ public class SerialIoStream extends AbstractIoStream {
 
     @Override
     public void flush() throws IOException {
-        sp.flushIOBuffers();
+  //      sp.flushIOBuffers(); todo uncomment once we migrate to fresh reliable version of connector
     }
 
     @Override
diff --git a/java_console/lib/jSerialComm-src.zip b/java_console/lib/jSerialComm-src.zip
index 0df96208d4..005ee34ec0 100644
Binary files a/java_console/lib/jSerialComm-src.zip and b/java_console/lib/jSerialComm-src.zip differ
diff --git a/java_console/lib/jSerialComm.jar b/java_console/lib/jSerialComm.jar
index 150afab37f..1a38bca8d3 100644
Binary files a/java_console/lib/jSerialComm.jar and b/java_console/lib/jSerialComm.jar differ