diff --git a/libraries/mbed/common/board.c b/libraries/mbed/common/board.c
index 9103236456..695b2f4305 100644
--- a/libraries/mbed/common/board.c
+++ b/libraries/mbed/common/board.c
@@ -19,7 +19,7 @@
 #include "mbed_interface.h"
 
 WEAK void mbed_die(void) {
-#ifndef NRF51_H
+#if !defined (NRF51_H) && !defined(TARGET_EFM32)
 	__disable_irq();	// dont allow interrupts to disturb the flash pattern
 #endif
 #if   (DEVICE_ERROR_RED == 1)
diff --git a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device.h b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device.h
index c3fd48cbdf..a57a2c070a 100644
--- a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device.h
+++ b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device.h
@@ -50,6 +50,8 @@
 
 #define DEVICE_LOWPOWERTIMER    1
 
+#define DEVICE_ERROR_PATTERN    1
+
 #include "objects.h"
 #include "device_peripherals.h"
 
diff --git a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device.h b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device.h
index 683ea026f2..f43dbfb52a 100644
--- a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device.h
+++ b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device.h
@@ -50,6 +50,8 @@
 
 #define DEVICE_LOWPOWERTIMER    1
 
+#define DEVICE_ERROR_PATTERN    1
+
 // Redefine OPEN_MAX from sys_limits.h to save on RAM.
 // Effect: maximum amount of file handlers = OPEN_MAX
 // This is not going to have an impact, since this is a RAM-limited part anyway.
diff --git a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device.h b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device.h
index f93fb1c6dd..25ba028d47 100644
--- a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device.h
+++ b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device.h
@@ -50,6 +50,8 @@
 
 #define DEVICE_LOWPOWERTIMER    1
 
+#define DEVICE_ERROR_PATTERN    1
+
 #include "objects.h"
 #include "Modules.h"
 #include "device_peripherals.h"
diff --git a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device.h b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device.h
index f93fb1c6dd..25ba028d47 100644
--- a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device.h
+++ b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device.h
@@ -50,6 +50,8 @@
 
 #define DEVICE_LOWPOWERTIMER    1
 
+#define DEVICE_ERROR_PATTERN    1
+
 #include "objects.h"
 #include "Modules.h"
 #include "device_peripherals.h"
diff --git a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device.h b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device.h
index 33d911f9a6..657bf62e39 100644
--- a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device.h
+++ b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device.h
@@ -50,6 +50,8 @@
 
 #define DEVICE_LOWPOWERTIMER    1
 
+#define DEVICE_ERROR_PATTERN    1
+
 // Redefine OPEN_MAX from sys_limits.h to save on RAM.
 // Effect: maximum amount of file handlers = OPEN_MAX
 // This is not going to have an impact, since this is a RAM-limited part anyway.