diff --git a/server/cn/home/www/cdn/img/logo/head.png b/server/cn/home/www/cdn/img/logo/head.png
new file mode 100644
index 0000000..289cf7f
Binary files /dev/null and b/server/cn/home/www/cdn/img/logo/head.png differ
diff --git a/server/cn/home/www/wiot/ota/check.php b/server/cn/home/www/wiot/ota/check.php
index 6baa4b6..58579e2 100644
--- a/server/cn/home/www/wiot/ota/check.php
+++ b/server/cn/home/www/wiot/ota/check.php
@@ -4,6 +4,7 @@ include '../../functions.php';
 header('Access-Control-Allow-Origin:*');
 
 $version = $_REQUEST['version'];
+$mac = $_REQUEST['MAC'];
 
 if(isset($version)){
     if($version != "v0.1.4")
@@ -11,7 +12,7 @@ if(isset($version)){
     else
         echo json_encode(array('update' => 0));
 
-yimian__log("log_wiot", array("timestamp" => date('Y-m-d H:i:s', time()), "ip" => ip2long(get_ip()), "version" => $version /* 经md5不可逆加密，仅用于区分用户 */));
+yimian__log("log_wiot", array("timestamp" => date('Y-m-d H:i:s', time()), "ip" => ip2long(get_ip()), "version" => $version /* 经md5不可逆加密，仅用于区分用户 */, "mac" => $mac));
 
     die();
 }