diff --git a/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/TcpServerSandbox.java b/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/TcpServerSandbox.java
index bbfe1b489d..751ed1c828 100644
--- a/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/TcpServerSandbox.java
+++ b/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/TcpServerSandbox.java
@@ -9,12 +9,19 @@ import com.rusefi.io.commands.HelloCommand;
 import com.rusefi.io.tcp.BinaryProtocolServer;
 import com.rusefi.io.tcp.TcpIoStream;
 
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
 import java.io.IOException;
 import java.net.Socket;
 
+import static com.rusefi.binaryprotocol.IoHelper.swap16;
 import static com.rusefi.config.generated.Fields.TS_PROTOCOL;
 import static com.rusefi.io.tcp.BinaryProtocolServer.TS_OK;
 
+/**
+ * Fully self-contained fake TCP-IP 'ECU' side of TS protocol
+ * does not have checkCrc32 command implementation so you have to remove it from .ini if you want to connect to this ECU
+ */
 public class TcpServerSandbox {
     public static void main(String[] args) throws IOException {
         BinaryProtocolServer.tcpServerSocket(29001,
@@ -30,7 +37,7 @@ public class TcpServerSandbox {
                                 System.out.println("Run server socket: " + socket);
 
                                 try {
-                                    IoStream stream = new TcpIoStream("gauge", socket);
+                                    IoStream stream = new TcpIoStream(TcpServerSandbox.class.getSimpleName(), socket);
                                     IncomingDataBuffer in = stream.getDataBuffer();
 
                                     while (!socket.isClosed()) {
@@ -45,6 +52,17 @@ public class TcpServerSandbox {
                                             new HelloCommand(Fields.TS_SIGNATURE).handle(stream);
                                         } else if (command == Fields.TS_GET_PROTOCOL_VERSION_COMMAND_F) {
                                             stream.sendPacket((TS_OK + TS_PROTOCOL).getBytes());
+                                        } else if (command == Fields.TS_PAGE_COMMAND) {
+                                            stream.sendPacket(TS_OK.getBytes());
+                                        } else if (command == Fields.TS_READ_COMMAND) {
+                                            DataInputStream dis = new DataInputStream(new ByteArrayInputStream(payload, 1, payload.length - 1));
+                                            int offset = swap16(dis.readShort());
+                                            int count = swap16(dis.readShort());
+                                            byte[] response = new byte[1 + count];
+                                            response[0] = (byte) TS_OK.charAt(0);
+                                            stream.sendPacket(response);
+                                        } else if (command == Fields.TS_GET_FIRMWARE_VERSION) {
+                                            stream.sendPacket((TS_OK + "rusEFI proxy").getBytes());
                                         } else
                                             throw new UnsupportedOperationException("Unsupported command " + command);
                                     }