diff --git a/src/Core.cpp b/src/Core.cpp
index 8d83215..1a96126 100644
--- a/src/Core.cpp
+++ b/src/Core.cpp
@@ -61,6 +61,8 @@ namespace core {
 		}
 
 		if (acquired) updateRtcTime();
+
+		hardware::sim808::powerOff(); //forcing power off, regardless of the counts and current use
 		mainunit::deepSleep(sleepTime);
 	}
 
diff --git a/src/MainUnit.cpp b/src/MainUnit.cpp
index 37b51df..0f705ed 100644
--- a/src/MainUnit.cpp
+++ b/src/MainUnit.cpp
@@ -34,9 +34,10 @@ namespace mainunit {
 	}
 
 	void interruptIn(uint16_t seconds) {
-		rtc::setAlarm(seconds);
-
 		pinMode(RTC_WAKE, INPUT);
+
+		EIFR |= 1 << INTF1; //forcing interrupt clear as sometimes, it does not seems to work (1 second appart positions)
+		rtc::setAlarm(seconds);
 		attachInterrupt(digitalPinToInterrupt(RTC_WAKE), interrupt, FALLING);
 	}
 
diff --git a/src/config/System.h b/src/config/System.h
index 5fc3938..61fb742 100644
--- a/src/config/System.h
+++ b/src/config/System.h
@@ -3,7 +3,7 @@
 #define CONFIG_ADDR 0				///< Address of the config block in the I2C EEPROM chip.
 #define CONFIG_RESERVED_SIZE 128	///< Reserved size for the config block in the I2C EEPROM chip.
 #define CONFIG_SEED 14				///< Seed use to detect invalid or outdate configuration data.
-#define VERSION "1.42"				/// Version string, only used for indicative purpose.
+#define VERSION "1.43"				/// Version string, only used for indicative purpose.
 
 
 /**