diff --git a/commands.c b/commands.c
index 3a263225..b8ad02b4 100644
--- a/commands.c
+++ b/commands.c
@@ -49,6 +49,7 @@
 #include "mempools.h"
 #include "bms.h"
 #include "qmlui.h"
+#include "crc.h"
 
 #include <math.h>
 #include <string.h>
@@ -1036,7 +1037,14 @@ void commands_process_packet(unsigned char *data, unsigned int len,
 	} break;
 
 	case COMM_EXT_NRF_ESB_RX_DATA: {
-		nrf_driver_process_packet(data, len);
+		if (len > 2) {
+			unsigned short crc = crc16((unsigned char*)data, len - 2);
+
+			if (crc	== ((unsigned short) data[len - 2] << 8 |
+					(unsigned short) data[len - 1])) {
+				nrf_driver_process_packet(data, len);
+			}
+		}
 	} break;
 
 	case COMM_APP_DISABLE_OUTPUT: {
diff --git a/conf_general.h b/conf_general.h
index f980c8c6..4adaac52 100755
--- a/conf_general.h
+++ b/conf_general.h
@@ -24,7 +24,7 @@
 #define FW_VERSION_MAJOR			5
 #define FW_VERSION_MINOR			03
 // Set to 0 for building a release and iterate during beta test builds
-#define FW_TEST_VERSION_NUMBER		41
+#define FW_TEST_VERSION_NUMBER		42
 
 #include "datatypes.h"