diff --git a/SD_ROOT/wz_mini/bin/cmd b/SD_ROOT/wz_mini/bin/cmd
index d20a4e6..0703338 100755
--- a/SD_ROOT/wz_mini/bin/cmd
+++ b/SD_ROOT/wz_mini/bin/cmd
@@ -4,12 +4,13 @@ if [ "$1" == "" ]; then
 	echo -e "welcome to: cmd <arg>\n"
 	echo -e "arg can be:"
 	echo -e "jpeg (will dump raw jpeg to stdout)"
-	echo -e "video on or off"
-	echo -e "audio on or off"
-	echo -e "move"
+	echo -e "video on on1 or off off1"
+	echo -e "audio on on1 or off off1"
+	echo -e "move (movable camera only)"
 	echo -e "waitMotion <timeout>"
 	echo -e "irled on or off"
-	echo -e "aplay <file path> <volume 1-100>"
+	echo -e "aplay <file path> <volume 1-100> (t31 only)"
+	echo -e "mp4write on or off (t31 only)"
 else
 	echo "$*" | /opt/wz_mini/bin/busybox nc localhost 4000
 fi
diff --git a/file.chk b/file.chk
index ffc7ed2..112847c 100644
--- a/file.chk
+++ b/file.chk
@@ -20,7 +20,7 @@ d41d8cd98f00b204e9800998ecf8427e  SD_ROOT/wz_mini/root/.gitignore
 ec906872794379af570869ebfd49bb23  SD_ROOT/wz_mini/bin/tcpdump
 db5c63af3c763fc6eb76f6e1b5c96794  SD_ROOT/wz_mini/bin/file
 3feb341fca58bc705c3ed5705d4eb716  SD_ROOT/wz_mini/bin/factorycheck
-d076290c9519128896a58fcd641df95e  SD_ROOT/wz_mini/bin/cmd
+85013481414ea5d5868a629ad79938d7  SD_ROOT/wz_mini/bin/cmd
 a9a6bf805cbcfdd6698fe5efd65f91bb  SD_ROOT/wz_mini/bin/nano
 36cbfe7b96d4240a6b138dd3695ccefd  SD_ROOT/wz_mini/bin/strings
 1458f09775917db388f807f7ac01bb65  SD_ROOT/wz_mini/bin/socat