diff --git a/mini-beieli-node.ino b/mini-beieli-node.ino
index a00957a..f19095c 100644
--- a/mini-beieli-node.ino
+++ b/mini-beieli-node.ino
@@ -129,7 +129,7 @@ sMyExtraCommands_top(
   |
   \****************************************************************************/
 
-static const int32_t fwVersion = 20191003;
+static const int32_t fwVersion = 20191004;
 static const byte MAX_VALUES_TO_SEND = 8;
 static const uint8_t LORA_DATA_VERSION = 1;
 static const uint8_t LORA_DATA_VERSION_FIRST_PACKAGE = 129;
@@ -188,7 +188,6 @@ typedef struct {
 
 byte my_position = 0;    // what is our actual measurement, starts with 0
 long timer_pos0;
-long timer_boot;        // timer when node booted
 
 // Global Variables
 LORA_data lora_data;
@@ -241,7 +240,6 @@ void sensorJob_cb(osjob_t* pJob);
 
 void setup(void)
 {
-  timer_boot = millis();
   gCatena.begin();
   ClearLoraData();
 
@@ -929,16 +927,17 @@ static void receiveMessage(void *pContext, uint8_t port, const uint8_t *pMessage
                        port, nMessage
                       );
     // we print out the received message...
+    gCatena.SafePrintf("Current LMIC.seqnoUp: %d\n",LMIC.seqnoUp);
     gCatena.SafePrintf("Received Data (Payload): \n");
     for (byte i = 0; i < nMessage; i++) {
-      gCatena.SafePrintf("%c", pMessage[i]);
+      gCatena.SafePrintf("%02x", pMessage[i]);
     }
     gCatena.SafePrintf("\n");
   }
 
-  if ((millis() - timer_boot) > 120000) { 
+  if (LMIC.seqnoUp > 2) { 
     if (config_data.debug_level > 0) {
-      gCatena.SafePrintf("tare with downlink is only possible within 2 minutes after boot!\n");
+      gCatena.SafePrintf("tare with downlink is only possible within first two uplink packets!\n");
       return;
     }