diff --git a/ql-application/threadx/interface/custom_app/http_downfile.c b/ql-application/threadx/interface/custom_app/http_downfile.c
index d3b05c0..9c1819a 100644
--- a/ql-application/threadx/interface/custom_app/http_downfile.c
+++ b/ql-application/threadx/interface/custom_app/http_downfile.c
@@ -185,10 +185,12 @@ void app_file_check_download(void)
 	int ret = 0, cnt = 0;
 	
 	for(index=1;index<20;index++){
-		
-		if(index==4||index==5||index==6||index==7||index==8){
-			continue;
-		}
+
+		/* barge_in_cute.mp3 is shipped in customer_fs and is not hosted by the
+		 * legacy prompt download service. */
+		if(index==4||index==5||index==6||index==7||index==8||index==19){
+			continue;
+		}
 		
 		if(strlen(mp3_file[index])>0){
 			sprintf(filename_buff, "U:/%s", mp3_file[index]);
@@ -204,14 +206,16 @@ down_loop:
 	}
 }
 
-void app_file_check_del(void)
+void app_file_check_del(void)
 {
 	int index = 1;
 	char filename_buff[64]={0x00};
 	
 	for(index=1;index<20;index++){
 		
-		if(index==4||index==5||index==6||index==7||index==8){
+		/* Keep the bundled barge-in prompt across app-only FOTA.  Unlike the
+		 * server-managed prompts, it cannot be restored by the downloader. */
+		if(index==4||index==5||index==6||index==7||index==8||index==19){
 			continue;
 		}
 		
diff --git a/ql-application/threadx/interface/custom_app/ws_talkingq.c b/ql-application/threadx/interface/custom_app/ws_talkingq.c
index 23a948e..6eb3f15 100644
--- a/ql-application/threadx/interface/custom_app/ws_talkingq.c
+++ b/ql-application/threadx/interface/custom_app/ws_talkingq.c
@@ -862,17 +862,23 @@ void sendRecordingAudioPacket(AudioPacket *packet) {
 
 extern const char *mp3_file[];
 
-int app_play_tips_file(int index)
-{
-	int file_valid_check = 0;
-	
-	printf("xiaoice_play_index:%d\n", index);
-	
-		//正在录音过程中不允许播放
-//	if(xiaoice_get_tts_play_status() || get_start_mic_flag()==1) return -1;
-    if(power_down_status!=1){
-		if(vad_audio_is_recording() || tts_playing!=0 || fota_start==1 || power_down_status==2 || get_sleep_mode()==1) return -1;
-    }
+int app_play_tips_file(int index)
+{
+	int file_valid_check = 0;
+	int access_ret = 0;
+
+	printf("xiaoice_play_index:%d\n", index);
+
+		//正在录音过程中不允许播放
+//	if(xiaoice_get_tts_play_status() || get_start_mic_flag()==1) return -1;
+    if(power_down_status!=1){
+		if(vad_audio_is_recording() || tts_playing!=0 || fota_start==1 || power_down_status==2 || get_sleep_mode()==1) {
+			printf("tips blocked:index=%d vad=%d tts=%d fota=%d power=%d sleep=%d\r\n",
+			       index, vad_audio_is_recording(), tts_playing, fota_start,
+			       power_down_status, get_sleep_mode());
+			return -1;
+		}
+    }
 	
 	char filename_buff[64]={0x00};
 	
@@ -881,11 +887,14 @@ int app_play_tips_file(int index)
 	if(index==0) {
 		file_valid_check = 0;
 	}else{ 
-		if(ql_access(filename_buff, 0)==0){	
-			file_valid_check = 1;
-		}else{
-			file_valid_check = 2;
-		}
+		access_ret = ql_access(filename_buff, 0);
+		if(access_ret==0){
+			file_valid_check = 1;
+		}else{
+			printf("tips file missing:index=%d path=%s access=%d\r\n",
+			       index, filename_buff, access_ret);
+			file_valid_check = 2;
+		}
 	}
 
 	if(file_valid_check!=2){