diff --git a/source/arm11/filebrowser.c b/source/arm11/filebrowser.c
index c5593d8..8276b91 100644
--- a/source/arm11/filebrowser.c
+++ b/source/arm11/filebrowser.c
@@ -306,6 +306,8 @@ static atp_pageopt_t serve_on_key( atp_callerdata_t data, atp_counter_t index, a
 		if( RES_OK != rom_get_serial(path, serial) )
 		{
 			RECOVER_PATH;
+			serial[4] = '1';
+			fsQuickWrite("serial.txt", serial, 5);
 			return WAIT_ON_ERRPAGE( display_noserial );
 		}
 		else RECOVER_PATH;
@@ -313,18 +315,22 @@ static atp_pageopt_t serve_on_key( atp_callerdata_t data, atp_counter_t index, a
 		acl_count_t len;
 		if( RES_OK != acl_open_lib( "gba.acl" ) )
 		{
+			serial[4] = '2';
+			fsQuickWrite("serial.txt", serial, 5);
 			return WAIT_ON_ERRPAGE( display_openlib );
 		}
 		if( RES_OK != acl_select_game( serial, 0, &len ) )
 		{
 			acl_close_lib();
+			serial[4] = '3';
+			fsQuickWrite("serial.txt", serial, 5);
 			return WAIT_ON_ERRPAGE( display_selcht );
 		}
 		if( len == 0 )
 		{
 			atp_tips( "", NULL );
 			acl_close_lib();
-			serial[5] = 'a'+len;
+			serial[4] = '4';
 			fsQuickWrite("serial.txt", serial, 5);
 			return WAIT_ON_ERRPAGE( display_nocheat );
 		}