diff --git a/project/example/ble/ble_peripheral/app/src/Rf433.c b/project/example/ble/ble_peripheral/app/src/Rf433.c
index ebdcc50..2ec8123 100644
--- a/project/example/ble/ble_peripheral/app/src/Rf433.c
+++ b/project/example/ble/ble_peripheral/app/src/Rf433.c
@@ -497,24 +497,26 @@ void _433_fun(){
 						break;
 				case Mode_add:
 					 if(POWEROFF==deviceStatus)break;
-						choose_mode_bh=0;
-						if(choose_mode_falsg>=REMOTE_MODE_MAX){
+						if(choose_mode_falsg>REMOTE_MODE_MAX){
 								choose_mode_falsg=REMOTE_MODE_MIN;
-						}else{
+						}else if(choose_mode_falsg<REMOTE_MODE_MAX){
 								choose_mode_falsg++;
+						}else{
+								break;
 						}
+						choose_mode_bh=0;
 						startTimer(&timer1,1);
 						break;	
 				case Mode_dow:
 					 if(POWEROFF==deviceStatus)break;
-						choose_mode_bh=0;
 						if(choose_mode_falsg>REMOTE_MODE_MAX){
 								choose_mode_falsg=REMOTE_MODE_MIN;
-						}else if(choose_mode_falsg==REMOTE_MODE_MIN){
-								choose_mode_falsg=REMOTE_MODE_MAX;
-						}else{
+						}else if(choose_mode_falsg>REMOTE_MODE_MIN){
 								choose_mode_falsg--;
+						}else{
+								break;
 						}
+						choose_mode_bh=0;
 						startTimer(&timer1,1);
 						break;
 				case Brightness_L: