diff --git a/firmware/console/binary/tunerstudio.cpp b/firmware/console/binary/tunerstudio.cpp
index 926881aa22..37fde3056d 100644
--- a/firmware/console/binary/tunerstudio.cpp
+++ b/firmware/console/binary/tunerstudio.cpp
@@ -206,8 +206,8 @@ void sendOkResponse(ts_channel_s *tsChannel, ts_response_format_e mode) {
 	sr5SendResponse(tsChannel, mode, NULL, 0);
 }
 
-static void sendErrorCode(ts_channel_s *tsChannel) {
-	sr5WriteCrcPacket(tsChannel, TS_RESPONSE_CRC_FAILURE, NULL, 0);
+static void sendErrorCode(ts_channel_s *tsChannel, uint8_t code) {
+	sr5WriteCrcPacket(tsChannel, code, NULL, 0);
 }
 
 static void handlePageSelectCommand(ts_channel_s *tsChannel, ts_response_format_e mode) {
@@ -297,7 +297,7 @@ static bool validateOffsetCount(size_t offset, size_t count, ts_channel_s *tsCha
 	if (offset + count > getTunerStudioPageSize()) {
 		scheduleMsg(&tsLogger, "TS: Project mismatch? Too much configuration requested %d/%d", offset, count);
 		tunerStudioError("ERROR: out of range");
-		sendErrorCode(tsChannel);
+		sendErrorCode(tsChannel, TS_RESPONSE_OUT_OF_RANGE);
 		return true;
 	}
 
@@ -496,20 +496,21 @@ void runBinaryProtocolLoop(ts_channel_s *tsChannel) {
 		if (incomingPacketSize == 0 || incomingPacketSize > (sizeof(tsChannel->crcReadBuffer) - CRC_WRAPPING_SIZE)) {
 			scheduleMsg(&tsLogger, "TunerStudio: invalid size: %d", incomingPacketSize);
 			tunerStudioError("ERROR: CRC header size");
-			sendErrorCode(tsChannel);
+			sendErrorCode(tsChannel, TS_RESPONSE_UNDERRUN);
 			continue;
 		}
 
 		received = sr5ReadData(tsChannel, (uint8_t* )tsChannel->crcReadBuffer, 1);
 		if (received != 1) {
 			tunerStudioError("ERROR: did not receive command");
+			sendErrorCode(tsChannel, TS_RESPONSE_UNDERRUN);
 			continue;
 		}
 
 		char command = tsChannel->crcReadBuffer[0];
 		if (!isKnownCommand(command)) {
 			scheduleMsg(&tsLogger, "unexpected command %x", command);
-			sendErrorCode(tsChannel);
+			sendErrorCode(tsChannel, TS_RESPONSE_UNRECOGNIZED_COMMAND);
 			continue;
 		}
 
@@ -517,9 +518,6 @@ void runBinaryProtocolLoop(ts_channel_s *tsChannel) {
 			logMsg("command %c\r\n", command);
 #endif
 
-
-//		scheduleMsg(logger, "TunerStudio: reading %d+4 bytes(s)", incomingPacketSize);
-
 		received = sr5ReadData(tsChannel, (uint8_t * ) (tsChannel->crcReadBuffer + 1),
 				incomingPacketSize + CRC_VALUE_SIZE - 1);
 		int expectedSize = incomingPacketSize + CRC_VALUE_SIZE - 1;
@@ -527,7 +525,7 @@ void runBinaryProtocolLoop(ts_channel_s *tsChannel) {
 			scheduleMsg(&tsLogger, "Got only %d bytes while expecting %d for command %c", received,
 					expectedSize, command);
 			tunerStudioError("ERROR: not enough bytes in stream");
-			sendResponseCode(TS_CRC, tsChannel, TS_RESPONSE_UNDERRUN);
+			sendErrorCode(tsChannel, TS_RESPONSE_UNDERRUN);
 			continue;
 		}
 
@@ -544,12 +542,10 @@ void runBinaryProtocolLoop(ts_channel_s *tsChannel) {
 			scheduleMsg(&tsLogger, "TunerStudio: command %c actual CRC %x/expected %x", tsChannel->crcReadBuffer[0],
 					actualCrc, expectedCrc);
 			tunerStudioError("ERROR: CRC issue");
+			sendErrorCode(tsChannel, TS_RESPONSE_CRC_FAILURE);
 			continue;
 		}
 
-//		scheduleMsg(logger, "TunerStudio: P00-07 %x %x %x %x %x %x %x %x", crcIoBuffer[0], crcIoBuffer[1],
-//				crcIoBuffer[2], crcIoBuffer[3], crcIoBuffer[4], crcIoBuffer[5], crcIoBuffer[6], crcIoBuffer[7]);
-
 		int success = tunerStudioHandleCrcCommand(tsChannel, tsChannel->crcReadBuffer, incomingPacketSize);
 		if (!success)
 			print("got unexpected TunerStudio command %x:%c\r\n", command, command);
@@ -606,7 +602,7 @@ static void handleOutputChannelsCommand(ts_channel_s *tsChannel, ts_response_for
 	if (offset + count > sizeof(TunerStudioOutputChannels)) {
 		scheduleMsg(&tsLogger, "TS: Version Mismatch? Too much outputs requested %d/%d/%d", offset, count,
 				sizeof(TunerStudioOutputChannels));
-		sendErrorCode(tsChannel);
+		sendErrorCode(tsChannel, TS_RESPONSE_OUT_OF_RANGE);
 		return;
 	}
 
diff --git a/firmware/console/binary/tunerstudio_io.h b/firmware/console/binary/tunerstudio_io.h
index c120ee31b5..ec92f8b5df 100644
--- a/firmware/console/binary/tunerstudio_io.h
+++ b/firmware/console/binary/tunerstudio_io.h
@@ -16,6 +16,9 @@
 
 #define TS_RESPONSE_UNDERRUN 0x80
 #define TS_RESPONSE_CRC_FAILURE 0x82
+#define TS_RESPONSE_UNRECOGNIZED_COMMAND 0x83
+#define TS_RESPONSE_OUT_OF_RANGE 0x84
+#define TS_RESPONSE_FRAMING_ERROR 0x8D
 
 typedef enum {
 	TS_PLAIN = 0,