diff --git a/source/arm11/keyremix.c b/source/arm11/keyremix.c
index 6c08b07..37ad24e 100644
--- a/source/arm11/keyremix.c
+++ b/source/arm11/keyremix.c
@@ -106,7 +106,7 @@ void keyremix_update( uint16_t active_cheatkey )
 
                 if( flags_holding & flag )
                 {
-                    // up when console keys up
+                    // exclude console keys is up
                     res |= now_release(now, prev_status, p->game_keys) ^ p->game_keys;
                 }
                 else if( oldf != flags_holding )// release
diff --git a/source/arm11/main.c b/source/arm11/main.c
index 0e6991e..c12a944 100644
--- a/source/arm11/main.c
+++ b/source/arm11/main.c
@@ -28,8 +28,8 @@
 
 static void setBacklight(void)
 {
-	u8 backlightMax;
-	u8 backlightMin;
+	u16 backlightMax;
+	u16 backlightMin;
 	if(MCU_getSystemModel() >= 4)
 	{
 		backlightMax=800;