diff --git a/Inc/Commissioning.h b/Inc/Commissioning.h
index c68a599..08f1aac 100755
--- a/Inc/Commissioning.h
+++ b/Inc/Commissioning.h
@@ -99,12 +99,12 @@ Maintainer: Miguel Luis and Gregory Cristian
 /*!
  * Application IEEE EUI (big endian)
  */
-#define LORAWAN_APPLICATION_EUI                     { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 }
+#define LORAWAN_APPLICATION_EUI                     { 0x70, 0xB3, 0xD5, 0x7E, 0xD0, 0x00, 0x7C, 0x04 }
 
 /*!
  * AES encryption/decryption cipher application key
  */
-#define LORAWAN_APPLICATION_KEY                     { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }
+#define LORAWAN_APPLICATION_KEY                     { 0x4F, 0x13, 0xEF, 0xE5, 0xD9, 0xA9, 0x44, 0x93, 0x99, 0x25, 0xD2, 0xD9, 0x79, 0x77, 0x91, 0xDC }
 
 #if( OVER_THE_AIR_ACTIVATION == 0 )
 
diff --git a/Src/main.c b/Src/main.c
index 6921724..8a3e5c3 100755
--- a/Src/main.c
+++ b/Src/main.c
@@ -88,7 +88,8 @@ Maintainer: Miguel Luis, Gregory Cristian and Wael Guibene
  * LoRaWAN application port
  * @note do not use 224. It is reserved for certification
  */
-#define LORAWAN_APP_PORT                            2
+#define LORAWAN_APP_PORT                            42
+//2
 /*!
  * Number of trials for the join request.
  */
@@ -187,16 +188,15 @@ int main(void)
 
 static void LoraTxData(lora_AppData_t *AppData, FunctionalState *IsTxConfirmed)
 {
+	static uint8_t counter = 0;
 	/* USER CODE BEGIN 3 */
-	PRINTF("Lora TX");
+	PRINTF("Lora TX\r\n");
 
 	AppData->Port = LORAWAN_APP_PORT;
-
-	//TODO
-
 	*IsTxConfirmed = LORAWAN_CONFIRMED_MSG;
 
-	AppData->BuffSize = 0;
+	sprintf((char*)AppData->Buff, "HELLO-%02d", counter++);
+	AppData->BuffSize = 8;
 
 	/* USER CODE END 3 */
 }
@@ -204,7 +204,7 @@ static void LoraTxData(lora_AppData_t *AppData, FunctionalState *IsTxConfirmed)
 static void LoraRxData(lora_AppData_t *AppData)
 {
 	/* USER CODE BEGIN 4 */
-	PRINTF("Lora RX");
+	PRINTF("Lora RX\r\n");
 
 	switch (AppData->Port) {
 		case LORAWAN_APP_PORT: