diff --git a/RX_FSK/RX_FSK.ino b/RX_FSK/RX_FSK.ino
index c9f0dc5..a8bd562 100644
--- a/RX_FSK/RX_FSK.ino
+++ b/RX_FSK/RX_FSK.ino
@@ -21,7 +21,6 @@
 #include "geteph.h"
 #include "rs92gps.h"
 
-int LORA_LED = 9;                             // default POUT for LORA LED used as serial monitor
 int e;
 
 enum MainState { ST_DECODER, ST_SPECTRUM, ST_WIFISCAN, ST_UPDATE };
@@ -883,12 +882,14 @@ void touchISR2();
 // Instead create a tast...
 
 Ticker ticker;
+Ticker ledFlasher;
 
 #define IS_TOUCH(x) (((x)!=255)&&((x)!=-1)&&((x)&128))
 void initTouch() {
+  // also used for LED
+  ticker.attach_ms(300, checkTouchStatus);
+
   if ( !(IS_TOUCH(sonde.config.button_pin) || IS_TOUCH(sonde.config.button2_pin)) ) return; // no touch buttons configured
-
-
   /*
    *  ** no. readTouch is not safe to use in ISR!
       so now using Ticker
@@ -897,8 +898,6 @@ void initTouch() {
     timerAlarmWrite(timer, 300000, true);
     timerAlarmEnable(timer);
   */
-  ticker.attach_ms(300, checkTouchStatus);
-
   if ( IS_TOUCH(sonde.config.button_pin) ) {
     touchAttachInterrupt(sonde.config.button_pin & 0x7f, touchISR, 60);
     Serial.printf("Initializing touch 1 on pin %d\n", sonde.config.button_pin & 0x7f);
@@ -1037,6 +1036,15 @@ void checkTouchButton(Button & button) {
   }
 }
 
+void ledOffCallback() {
+  digitalWrite(sonde.config.led_pout, LOW);
+}
+void flashLed(int ms) {
+  digitalWrite(sonde.config.led_pout, HIGH);
+  ledFlasher.once_ms(ms, ledOffCallback);
+}
+
+int doTouch = 0;
 void checkTouchStatus() {
   checkTouchButton(button1);
   checkTouchButton(button2);
@@ -1271,8 +1279,9 @@ void setup()
     digitalWrite(sonde.config.power_pout & 127, sonde.config.power_pout & 128 ? 1 : 0);
   }
 
-  LORA_LED = sonde.config.led_pout;
-  pinMode(LORA_LED, OUTPUT);
+  pinMode(sonde.config.led_pout, OUTPUT);
+  digitalWrite(sonde.config.led_pout, HIGH);
+  flashLed(1000); // testing
 
   button1.pin = sonde.config.button_pin;
   button2.pin = sonde.config.button2_pin;
diff --git a/libraries/SondeLib/M10.cpp b/libraries/SondeLib/M10.cpp
index 004c979..88da155 100644
--- a/libraries/SondeLib/M10.cpp
+++ b/libraries/SondeLib/M10.cpp
@@ -233,7 +233,8 @@ const static float DEGMUL = 1.0/0xB60B60;
 #define RAD (PI/180)
 
 
-bool M10::decodeframeM10(uint8_t *data) {
+// ret: 1=frame ok; 2=frame with errors; 0=ignored frame (m10dop-alternativ)
+int M10::decodeframeM10(uint8_t *data) {
 	int repairstep = 16;
 	int repl = 0;
 	bool crcok;
@@ -313,8 +314,9 @@ bool M10::decodeframeM10(uint8_t *data) {
                 sonde.si()->validTime = true;
 	} else {
 		Serial.printf("data is %02x %02x %02x\n", data[0], data[1], data[2]);
+		return 0;
 	}
-	return crcok;
+	return crcok?1:2;
 }
 
 static uint32_t rxdata;
@@ -369,8 +371,7 @@ void M10::processM10data(uint8_t dt)
 #endif
 				if(rxp>=M10_FRAMELEN) {
 					rxsearching = true;
-					bool ok = decodeframeM10(dataptr);
-					haveNewFrame = ok ? 1 : 2;
+					haveNewFrame = decodeframeM10(dataptr);
 				}
 			}
 		}
diff --git a/libraries/SondeLib/M10.h b/libraries/SondeLib/M10.h
index bd5254a..232ce31 100644
--- a/libraries/SondeLib/M10.h
+++ b/libraries/SondeLib/M10.h
@@ -54,7 +54,7 @@ class M10
 private:
 	void printRaw(uint8_t *data, int len);
 	void processM10data(uint8_t data);
-        bool decodeframeM10(uint8_t *data);
+        int decodeframeM10(uint8_t *data);
 #if 0
 	void stobyte92(uint8_t byte);
 	void dogps(const uint8_t *sf, int sf_len,
diff --git a/libraries/SondeLib/Sonde.cpp b/libraries/SondeLib/Sonde.cpp
index 51a1843..b97cea0 100644
--- a/libraries/SondeLib/Sonde.cpp
+++ b/libraries/SondeLib/Sonde.cpp
@@ -84,6 +84,7 @@ void Sonde::defaultConfig() {
 		config.button_pin = 0;
 		config.button2_pin = T4 + 128;     // T4 == GPIO13
 		config.power_pout = 21;		   // for Heltec v2
+		config.led_pout = 2;	
 		Serial.println("Autoconfig: looks like TTGO v1 / Heltec v1/V2 board");
 	} else {
 		config.oled_sda = 21;
@@ -139,6 +140,7 @@ void Sonde::defaultConfig() {
 		} else {
 			config.button_pin = 2 + 128;     // GPIO2 / T2
 			config.button2_pin = 14 + 128;   // GPIO14 / T6
+			config.led_pout = 25;
 		}
 	}
 	//
@@ -381,6 +383,8 @@ void Sonde::setup() {
 	Serial.printf("AFC BW: %f  RX BW: %f\n", afcbw, rxbw);
 }
 
+extern void flashLed(int ms);
+
 void Sonde::receive() {
 	uint16_t res = 0;
 	SondeInfo *si = &sondeList[rxtask.currentSonde];
@@ -402,11 +406,13 @@ void Sonde::receive() {
 
 	// state information for RX_TIMER / NORX_TIMER events
         if(res==0) {  // RX OK
+		flashLed(700);
                 if(si->lastState != 1) {
                         si->rxStart = millis();
                         si->lastState = 1;
                 }
         } else { // RX not ok
+		if(res==RX_ERROR) flashLed(100);
                 if(si->lastState != 0) {
                         si->norxStart = millis();
                         si->lastState = 0;