diff --git a/source/arm11/menu/menu_func.c b/source/arm11/menu/menu_func.c
index a569443..f4427ad 100644
--- a/source/arm11/menu/menu_func.c
+++ b/source/arm11/menu/menu_func.c
@@ -711,6 +711,10 @@
 	
 	char firm_path[FF_MAX_LFN + 1];
 	u32 result = 1;
+    
+	bool accept_downgrades = false;
+	if (configDataExist(KDevMode) && (*(bool*) configGetData(KDevMode)))
+		accept_downgrades = true;
 	
 	
 	// file browser dialogue
@@ -742,7 +746,13 @@
 	
 	u32 version = 0;
 	s32 res = loadVerifyUpdate(firm_path, &version);
-	if (res != 0)
+	if (!accept_downgrades && (res == UPDATE_ERR_DOWNGRADE))
+	{
+		ee_printf(ESC_SCHEME_BAD "failed!\n" ESC_RESET);
+		ee_printf("A newer version is already installed.\n");
+		goto fail;
+	}
+	else if (res != 0)
 	{
 		ee_printf(ESC_SCHEME_BAD "failed!\n" ESC_RESET);
 		switch ( res )
@@ -755,10 +765,6 @@
 				ee_printf("Not a fastboot3DS update firmware.\n");
 				break;
 				
-			case UPDATE_ERR_DOWNGRADE:
-				ee_printf("A newer version is already installed.\n");
-				break;
-				
 			case UPDATE_ERR_NOT_INSTALLED:
 				ee_printf("Update is not possible.\n");
 				break;