diff -ru a/SDK/platform/devices/MK22F51212/startup/gcc/startup_MK22F51212.S b/SDK/platform/devices/MK22F51212/startup/gcc/startup_MK22F51212.S
--- AllJoynAirconHACtrl/SDK/platform/devices/MK22F51212/startup/gcc/startup_MK22F51212.S	2016-01-22 15:54:47.154763000 +0900
+++ AllJoynSensorNode/SDK/platform/devices/MK22F51212/startup/gcc/startup_MK22F51212.S	2016-01-07 23:33:38.447086100 +0900
@@ -310,8 +310,9 @@
     .long 0xFFFFFFFF
     .long 0xFFFFFFFF
     .long 0xFFFFFFFF
-    .long 0xFFFFFFFE
-
+    .long 0xFFFFf9FE
+    //.long 0xFFFFFFFE
+/* 0x040D: FOPT -> change from 0xff to 0xf9 (disable NMI and EzPort function on PTA4) to utilize PTA4 pin as GPIO */
     .text
     .thumb
 
