diff --git a/gc/ogc/system.h b/gc/ogc/system.h
index 16d7441..3b5a116 100644
--- a/gc/ogc/system.h
+++ b/gc/ogc/system.h
@@ -98,6 +98,38 @@ distribution.
  *@}
  */
 
+#define SYS_CONSOLE_MASK				0xf0000000
+#define SYS_CONSOLE_RETAIL				0x00000000
+#define SYS_CONSOLE_DEVELOPMENT			0x10000000
+#define SYS_CONSOLE_TDEV				0x20000000
+
+#if defined(HW_DOL)
+#define SYS_CONSOLE_RETAIL_HW1			0x00000001
+#define SYS_CONSOLE_RETAIL_HW2			0x00000002
+#define SYS_CONSOLE_RETAIL_HW3			0x00000003
+#define SYS_CONSOLE_DEVELOPMENT_HW1		0x10000004
+#define SYS_CONSOLE_DEVELOPMENT_HW2		0x10000005
+#define SYS_CONSOLE_DEVELOPMENT_HW3		0x10000006
+#define SYS_CONSOLE_TDEV_HW1			0x20000004
+#define SYS_CONSOLE_TDEV_HW2			0x20000005
+#define SYS_CONSOLE_TDEV_HW3			0x20000006
+#elif defined(HW_RVL)
+#define SYS_CONSOLE_RETAIL_ES1_0		0x00000010
+#define SYS_CONSOLE_RETAIL_ES1_1		0x00000011
+#define SYS_CONSOLE_RETAIL_ES1_2		0x00000012
+#define SYS_CONSOLE_RETAIL_ES2_0		0x00000020
+#define SYS_CONSOLE_RETAIL_ES2_1		0x00000021
+#define SYS_CONSOLE_RETAIL_ES3_0		0x00000030
+#define SYS_CONSOLE_RETAIL_ES3_1		0x00000031
+#define SYS_CONSOLE_NDEV_ES1_0			0x10000010
+#define SYS_CONSOLE_NDEV_ES1_1			0x10000011
+#define SYS_CONSOLE_NDEV_ES1_2			0x10000012
+#define SYS_CONSOLE_NDEV_ES2_0			0x10000020
+#define SYS_CONSOLE_NDEV_ES2_1			0x10000021
+#define SYS_CONSOLE_NDEV_ES3_0			0x10000030
+#define SYS_CONSOLE_NDEV_ES3_1			0x10000031
+#endif
+
 #define SYS_LANG_ENGLISH				0
 #define SYS_LANG_GERMAN					1
 #define SYS_LANG_FRENCH					2
@@ -350,6 +382,7 @@ void SYS_SetWirelessID(u32 chan,u16 id);
 u16 SYS_GetGBSMode(void);
 void SYS_SetGBSMode(u16 mode);
 
+u32 SYS_GetConsoleType(void);
 u32 SYS_GetFontEncoding(void);
 u32 SYS_InitFont(sys_fontheader *font_data);
 void SYS_GetFontTexture(s32 c,void **image,s32 *xpos,s32 *ypos,s32 *width);
diff --git a/libogc/exi.c b/libogc/exi.c
index 217d00d..876ef6e 100644
--- a/libogc/exi.c
+++ b/libogc/exi.c
@@ -34,6 +34,7 @@ distribution.
 #include "asm.h"
 #include "irq.h"
 #include "processor.h"
+#include "system.h"
 #include "cache.h"
 #include "exi.h"
 #include "lwp.h"
@@ -1091,10 +1092,13 @@ void __SYS_EnableBarnacle(s32 chn,u32 dev)
 s32 InitializeUART(void)
 {
 	if(exi_uart_barnacle_enabled==0xa5ff005a) return 0;
+	if((SYS_GetConsoleType()&SYS_CONSOLE_MASK)!=SYS_CONSOLE_DEVELOPMENT) {
+		exi_uart_enabled = 0;
+		return 2;
+	}
 
 	exi_uart_chan = EXI_CHANNEL_0;
 	exi_uart_dev = EXI_DEVICE_1;
-
 	exi_uart_enabled = 0xa5ff005a;
 	return 0;
 }
diff --git a/libogc/system.c b/libogc/system.c
index a463813..026328e 100644
--- a/libogc/system.c
+++ b/libogc/system.c
@@ -2025,7 +2025,22 @@ void SYS_SetGBSMode(u16 mode)
 	__SYS_UnlockSramEx(write);
 }
 
-#if defined(HW_RVL)
+#if defined(HW_DOL)
+u32 SYS_GetConsoleType(void)
+{
+	u32 type;
+	type = *((u32*)0x8000002c);
+	return type;
+}
+#elif defined(HW_RVL)
+u32 SYS_GetConsoleType(void)
+{
+	u32 type;
+	type = SYS_CONSOLE_RETAIL_ES1_0;
+	type += *((u32*)0x80003138);
+	return type;
+}
+
 u32 SYS_GetHollywoodRevision(void)
 {
 	u32 rev;