diff --git a/src/W800_SDK_v1.00.10/app/main.c b/src/W800_SDK_v1.00.10/app/main.c
index 45bbbb3..756bc6e 100644
--- a/src/W800_SDK_v1.00.10/app/main.c
+++ b/src/W800_SDK_v1.00.10/app/main.c
@@ -39,7 +39,7 @@ void user_task_main(void *param)
 		{
 			UBaseType_t writtenSize = vTaskList((char *)buf, 800);
 			APP_LOG_INFO("Available RAM (bytes)/Total RAM (bytes) : %u/%u"NEW_LINE
-			"FreeRTOS heap : %u/%u byte(s)"NEW_LINE
+			"FreeRTOS free heap/total heap : %u/%u byte(s)"NEW_LINE
 			"Reset reason : %d"NEW_LINE
 			"Clk : apb(%u), cpu(%u), wlan(%u)"NEW_LINE
 			"Tasks (%lu) :"NEW_LINE,
diff --git a/src/W800_SDK_v1.00.10/tools/w800/w800_secboot.img b/src/W800_SDK_v1.00.10/tools/w800/w800_secboot.img
deleted file mode 100644
index 5b0f609..0000000
Binary files a/src/W800_SDK_v1.00.10/tools/w800/w800_secboot.img and /dev/null differ
diff --git a/src/W800_SDK_v1.00.10/tools/w800/wm_getver.exe b/src/W800_SDK_v1.00.10/tools/w800/wm_getver.exe
deleted file mode 100644
index 781cb49..0000000
Binary files a/src/W800_SDK_v1.00.10/tools/w800/wm_getver.exe and /dev/null differ