diff --git a/project/example/ble/ble_peripheral/app/src/Rf433.c b/project/example/ble/ble_peripheral/app/src/Rf433.c
index 59d99c4..0c05e30 100644
--- a/project/example/ble/ble_peripheral/app/src/Rf433.c
+++ b/project/example/ble/ble_peripheral/app/src/Rf433.c
@@ -79,6 +79,10 @@ static uint8_t ssse=0;
 static volatile uint16_t rf_frame_sequence;
 static uint16_t pair_last_frame_sequence;
 static uint32_t pair_candidate_data;
+static uint32_t pair_alternate_data;
+static uint8_t pair_candidate_valid;
+static uint8_t pair_alternate_count;
+
 static uint8_t pair_frame_silence_ticks;
 
 static uint8_t pairing_feedback_active;
@@ -94,8 +98,8 @@ static uint16_t pairing_saved_c;
 static uint16_t pairing_saved_w_duty;
 static uint16_t pairing_saved_c_duty;
 
-#define PAIR_HOLD_FRAME_COUNT    8U
-#define PAIR_FRAME_SILENCE_TICKS 50U
+#define PAIR_HOLD_FRAME_COUNT     4U
+#define PAIR_FRAME_SILENCE_TICKS 100U
 uint8_t long_flag_s=0;
 
 // 在固定大小数组中添加新元素（滑动窗口）
@@ -197,35 +201,70 @@ static void Pairing_Feedback_Task(void)
     pairing_feedback_on = pairing_feedback_on ? 0U : 1U;
     Pairing_Feedback_Apply(pairing_feedback_on);
 }
+static void Pairing_Candidate_Reset(void)
+{
+    long_press_cnt = 0U;
+    pair_candidate_data = 0U;
+    pair_alternate_data = 0U;
+    pair_candidate_valid = 0U;
+    pair_alternate_count = 0U;
+    pair_frame_silence_ticks = 0U;
+}
+
 
 
 static void Encoder_key_NoCode(){
    uint8_t i=0,j=0,isok=0,updata=0; 
 	 uint16_t times_s=0; 
 	
-		if(rf_frame_sequence == pair_last_frame_sequence){
-			if(pair_frame_silence_ticks < 0xffU) pair_frame_silence_ticks++;
-			if(pair_frame_silence_ticks > PAIR_FRAME_SILENCE_TICKS){
-				long_press_cnt = 0U;
-				pair_candidate_data = 0U;
-			}
-			return;
-		}
+		if(pair_frame_silence_ticks < 0xffU) pair_frame_silence_ticks++;
+		if(pair_frame_silence_ticks > PAIR_FRAME_SILENCE_TICKS)
+			Pairing_Candidate_Reset();
 
+		if(rf_frame_sequence == pair_last_frame_sequence) return;
 		pair_last_frame_sequence = rf_frame_sequence;
-		pair_frame_silence_ticks = 0U;
 
-		if(!((res_data==Brightness_H||res_data==Brightness_L||res_data==B_Brightness_H||res_data==B_Brightness_L||res_data==F_Brightness_10||res_data==F_Brightness_100)&&time_5s<=50000&&ssse==0)){
-			long_press_cnt = 0U;
-			pair_candidate_data = 0U;
+		if(ssse != 0U || time_5s > 50000U) return;
+		if(!(res_data==Brightness_H||res_data==Brightness_L||
+		     res_data==B_Brightness_H||res_data==B_Brightness_L||
+		     res_data==F_Brightness_10||res_data==F_Brightness_100))
+		{
 			return;
 		}
 
-		if(pair_candidate_data == receive_data){
-			long_press_cnt++;
-		}else{
+		if(!pair_candidate_valid)
+		{
 			pair_candidate_data = receive_data;
+			pair_candidate_valid = 1U;
 			long_press_cnt = 1U;
+			pair_alternate_count = 0U;
+			pair_frame_silence_ticks = 0U;
+		}
+		else if(pair_candidate_data == receive_data)
+		{
+			long_press_cnt++;
+			pair_alternate_count = 0U;
+			pair_frame_silence_ticks = 0U;
+		}
+		else
+		{
+			if(pair_alternate_data == receive_data)
+			{
+				pair_alternate_count++;
+			}
+			else
+			{
+				pair_alternate_data = receive_data;
+				pair_alternate_count = 1U;
+			}
+
+			if(pair_alternate_count >= 2U)
+			{
+				pair_candidate_data = pair_alternate_data;
+				long_press_cnt = pair_alternate_count;
+				pair_alternate_count = 0U;
+				pair_frame_silence_ticks = 0U;
+			}
 		}
 
 			if(long_press_cnt>=PAIR_HOLD_FRAME_COUNT){