diff --git a/rootfs/etc/fw_env.config b/rootfs/etc/fw_env.config
new file mode 100644
index 0000000..d7a234b
--- /dev/null
+++ b/rootfs/etc/fw_env.config
@@ -0,0 +1 @@
+/dev/mtd0 0x0 0x80000 0x40000
diff --git a/rootfs/link/bin/Encoder b/rootfs/link/bin/Encoder
index 3624b0a..44aaac7 100644
Binary files a/rootfs/link/bin/Encoder and b/rootfs/link/bin/Encoder differ
diff --git a/rootfs/link/config/rtty.json b/rootfs/link/config/rtty.json
new file mode 100644
index 0000000..89d9aa6
--- /dev/null
+++ b/rootfs/link/config/rtty.json
@@ -0,0 +1 @@
+{"enable":false,"ip":"191.80.63.50","id":"00000001","des":"编码板","token":""}
diff --git a/rootfs/link/config/verLogs.json b/rootfs/link/config/verLogs.json
index 30ee973..c75c59e 100644
--- a/rootfs/link/config/verLogs.json
+++ b/rootfs/link/config/verLogs.json
@@ -1,4 +1,15 @@
 [
+  {
+    "version": "2.5.0 build 20230831",
+    "logs": [
+      "修正http接口获取/设置水印异常问题",
+      "修正srt输出，latency参数值不能大于1000的问题",
+      "优化ENC1V3与ENCSHV2机型的4K输出画质",
+      "ENC1V3、ENCSHV2、ENC5V2机型，HDMI输出增加水平镜像功能",
+      "高级设置下远程访问页面，新增Rtty访问设备方式",
+      "系统底层优化"
+    ]
+  },
   {
     "version": "2.4.0 build 20230731",
     "logs": [
diff --git a/rootfs/link/config/version.json b/rootfs/link/config/version.json
index 32d7550..63f4527 100644
--- a/rootfs/link/config/version.json
+++ b/rootfs/link/config/version.json
@@ -1,5 +1,5 @@
 {
     "app": "2.0.0 build 20220512_869",
     "sdk": "2.0.0 build 20220518_20716",
-    "sys": "2.4.0 build 20230731"
+    "sys": "2.5.0 build 20230831"
 }
diff --git a/rootfs/link/shell/dhcp_echo.sh b/rootfs/link/shell/dhcp_echo.sh
new file mode 100644
index 0000000..ece648f
--- /dev/null
+++ b/rootfs/link/shell/dhcp_echo.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+if  [ $1 != "bound" ]; then
+  exit 0
+fi
+if  [ "$ip" == "" ]; then
+  exit 0
+fi
+echo "dhcp_result"
+echo "dev:"$interface
+echo "ip:"$ip
+echo "mask:"$subnet
+echo "gw:"$router
+echo "dns:"$dns
diff --git a/rootfs/link/shell/init.sh b/rootfs/link/shell/init.sh
index 8e00209..dcd250a 100644
--- a/rootfs/link/shell/init.sh
+++ b/rootfs/link/shell/init.sh
@@ -14,6 +14,7 @@ else
 /link/shell/netManager.sh
 /link/shell/init/filesystem.sh
 /link/shell/init/service.sh
+/link/shell/init/rtty.sh
 /link/shell/app.sh 
 fi
 
diff --git a/rootfs/link/shell/init/rtty.sh b/rootfs/link/shell/init/rtty.sh
new file mode 100644
index 0000000..2f2f4cd
--- /dev/null
+++ b/rootfs/link/shell/init/rtty.sh
@@ -0,0 +1,32 @@
+. /link/shell/util/hardware.sh
+cfg=/link/config/rtty.json
+ver=/link/config/version.json
+
+#model=${model:4}
+sys=`jq -r .sys $ver`
+build=`echo $sys | sed 's/\"//g' | awk '{split($1, arr, " "); print arr[1]}'`
+
+(
+  while [ true ]
+  do
+    enable=`jq -r .enable $cfg`
+    if [ "$enable" == "true" ] ;then
+      ip=`jq -r .ip $cfg`
+      id=`jq -r .id $cfg`
+      des=`jq -r .des $cfg`
+      token=`jq -r .token $cfg`
+      if [ "$des" == "" ];then
+        des=$model" build "$build
+      else
+	des=$des" ( "$model" build "$build" )"
+      fi
+      if [ "$token" == "" ] ;then
+        rtty -I "$id" -h $ip -p 5912 -a -v -d "$des"
+      else
+        rtty -I "$id" -h $ip -p 5912 -a -v -d "$des" -t $token
+      fi
+    fi
+    sleep 2
+ done
+) & 
+
diff --git a/rootfs/link/shell/init/service.sh b/rootfs/link/shell/init/service.sh
index cf9ab58..2f2af33 100644
--- a/rootfs/link/shell/init/service.sh
+++ b/rootfs/link/shell/init/service.sh
@@ -47,3 +47,8 @@ if [ `jget sls` == "true" ]; then
 fi
 
 /link/shell/ntp.sh &
+
+frp_enable=$(cat /link/config/rproxy/frp_enable |awk '{printf "%s",$1}')
+if [ "$frp_enable" == "true" ]; then
+/link/shell/frp.sh &
+fi
diff --git a/rootfs/link/shell/update.sh b/rootfs/link/shell/update.sh
index e91a62c..a8bf1dc 100644
--- a/rootfs/link/shell/update.sh
+++ b/rootfs/link/shell/update.sh
@@ -40,6 +40,11 @@ if [ ! -z "$(ls -A /link/update)" ]; then
 
     rm -rf /tmp/history_config
     rm /link/config/auto/no_user_setting
+    
+    if [ -f "/link/config/uboot_env.txt" ]; then
+    fw_setenv -s /link/config/uboot_env.txt
+    rm /link/config/uboot_env.txt
+    fi
 
     if [ -f "/link/config/reboot" ]; then
         rm /link/config/reboot
@@ -55,3 +60,5 @@ fi
 
 
 
+
+
diff --git a/rootfs/link/web/func.php b/rootfs/link/web/func.php
index 1367546..2156b82 100644
--- a/rootfs/link/web/func.php
+++ b/rootfs/link/web/func.php
@@ -453,19 +453,21 @@ function formatBytes($total) {
 function getDiskSpace() {
     global $result;
     $mountDir = '/root/usb';
-    $output = shell_exec('df ' . $mountDir);
+    $output = shell_exec('df -h ' . $mountDir);
 
     if(strpos($output, $mountDir) != false) {
-        $totalSpace = disk_total_space($mountDir);
-        $freeSpace = disk_free_space($mountDir);
-        $usedSpace = $totalSpace - $freeSpace;
+//        $totalSpace = disk_total_space($mountDir);
+//        $freeSpace = disk_free_space($mountDir);
+//        $usedSpace = $totalSpace - $freeSpace;
+        $lines = explode("\n", trim($output));
+        $dataLine = $lines[count($lines) - 1];
+        $totalSpace = preg_split('/\s+/', $dataLine)[1];
+        $usedSpace = preg_split('/\s+/', $dataLine)[2];
 
-        $result->total = formatBytes($totalSpace);
-        $result->free =  formatBytes($freeSpace);
-        $result->used =  formatBytes($usedSpace);
+        $result->total = $totalSpace;
+        $result->used =  $usedSpace;
     } else {
         $result->total = 0;
-        $result->free =  0;
         $result->used =  0;
     }
 }
@@ -571,6 +573,10 @@ function getAliase() {
 		$result->result = $ret["data"];
 }
 
+function reloadRtty() {
+    exec("pkill rtty");
+}
+
 function send($url, $data = null){
 	global $result;
 	$context = null;
diff --git a/rootfs/link/web/link/api/overlay.php b/rootfs/link/web/link/api/overlay.php
index 0cfe8db..59ffe05 100644
--- a/rootfs/link/web/link/api/overlay.php
+++ b/rootfs/link/web/link/api/overlay.php
@@ -14,20 +14,27 @@ class Overlay extends Verify
             $this->link_verify();
             $conf = $this->load_conf('/link/config/config.json');
             $result = [];
-            foreach ($conf as $item) {
-                if (!$item['type'] == 'file')
-                    continue;
 
+            $overlayConf = [];
+            if(file_exists("/link/config/auto/overlay.json"))
+                $overlayConf = $this->load_conf('/link/config/auto/overlay.json');
+
+            for($i=0;$i<count($conf);$i++) {
+                $item = $conf[$i];
                 $obj = array(
                     'id' => $item['id'],
                     'name' => $item['name'],
                     'type' => $item['type'],
                     'enable'=> $item['enable'],
                     'enable2'=> $item['enable2'],
-                    'overlay' => $item['overlay']
                 );
+                if(count($overlayConf) > 0)
+                    $obj['overlay'] = $overlayConf[$i];
+                else
+                    $obj['overlay'] = $item['overlay'];
                 array_push($result, $obj);
             }
+
             return $this->handleRet($result, "success", "执行完成", "execution is completed");
         } catch (Exception $ex) {
             return $this->handleRet('', 'error', $ex->getMessage(), $ex->getMessage());
@@ -42,31 +49,47 @@ class Overlay extends Verify
             $this->check_args($params);
 
             $conf = $this->load_conf('/link/config/config.json');
-            for($i=0;$i<count($params);$i++)
+            $mark = file_exists("/link/config/auto/overlay.json");
+
+            if($mark)
             {
-                $param = $params[$i];
-                $id = $param['id'];
-
-                $chn=null;$index=-1;
-                for($j=0;$j<count($conf);$j++)
+                $overlayConf = [];
+                for($i=0;$i<count($params);$i++)
                 {
-                    $item = $conf[$j];
-                    if($id != $item['id'])
-                        continue;
-
-                    if(!isset($param['overlay']))
-                        continue;
-
-                    $item['overlay'] = $param['overlay'];
-                    $chn = $item;
-                    $index = $j;
+                    $param = $params[$i];
+                    $overlayConf[] = $param['overlay'];
                 }
-                if($index > -1)
-                    $conf[$index] = $chn;
+                $client = new RpcClient();
+                $client->update_overlay($overlayConf);
             }
+            else
+            {
+                for($i=0;$i<count($params);$i++)
+                {
+                    $param = $params[$i];
 
-            $client = new RpcClient();
-            $client->update_enc($conf);
+                    $id = $param['id'];
+
+                    $chn=null;$index=-1;
+                    for($j=0;$j<count($conf);$j++)
+                    {
+                        $item = $conf[$j];
+                        if($id != $item['id'])
+                            continue;
+
+                        if(!isset($param['overlay']))
+                            continue;
+
+                        $item['overlay'] = $param['overlay'];
+                        $chn = $item;
+                        $index = $j;
+                    }
+                    if($index > -1)
+                        $conf[$index] = $chn;
+                }
+                $client = new RpcClient();
+                $client->update_enc($conf);
+            }
 
             return $this->handleRet("","success","执行完成","execution is completed");
         }
diff --git a/rootfs/link/web/link/monitor.php b/rootfs/link/web/link/monitor.php
index 6dabda2..19ed1a9 100644
--- a/rootfs/link/web/link/monitor.php
+++ b/rootfs/link/web/link/monitor.php
@@ -1,13 +1,5 @@
 <?php
 
-// +----------------------------------------------------------------------
-// | LPH协议 应用程序入口
-// +----------------------------------------------------------------------
-// | 码云：https://gitee.com/LinkPi/
-// +----------------------------------------------------------------------
-// | 广州灵派科技有限公司 (www.linkpi.cn)
-// +----------------------------------------------------------------------
-
 require __DIR__ . '/autoload.php';
 
 use Link\App;
diff --git a/rootfs/link/web/link/rpc/rpc_client.php b/rootfs/link/web/link/rpc/rpc_client.php
index 28c6650..6dc366a 100644
--- a/rootfs/link/web/link/rpc/rpc_client.php
+++ b/rootfs/link/web/link/rpc/rpc_client.php
@@ -87,4 +87,11 @@ class RpcClient
         $client->send();
         return $ret;
     }
+
+    public function update_overlay($param)
+    {
+        $client = new Client(self::enc_url);
+        $client->query('enc.updateOverlay',[json_encode($param,JSON_UNESCAPED_UNICODE|JSON_PRETTY_PRINT)]);
+        $client->send();
+    }
 }
\ No newline at end of file
diff --git a/rootfs/link/web/mix.php b/rootfs/link/web/mix.php
index 3e38527..f895f49 100644
--- a/rootfs/link/web/mix.php
+++ b/rootfs/link/web/mix.php
@@ -174,6 +174,23 @@ include("head.php");
 									</select>
 								</div>
 							</div>
+
+                            <?php
+                            if ($hardware["chip"]=="SS524V100" || $hardware["chip"]=="SS528V100" || $hardware["chip"]=="HI3531DV200") {
+                            ?>
+                                <div class="form-group">
+                                    <label class="col-sm-4 control-label">
+                                        <cn>左右镜像</cn>
+                                        <en>mirror</en>
+                                    </label>
+                                    <div class="col-sm-6">
+                                        <input type="checkbox" zcfg="output.mirror" class="switch form-control">
+                                    </div>
+                                </div>
+                            <?php
+                            }
+                            ?>
+
 							<div class="form-group">
 								<label class="col-sm-4 control-label">
 									<cn>视频源</cn>
@@ -289,6 +306,21 @@ include("head.php");
 									</select>
 								</div>
 							</div>
+                            <?php
+                            if ($hardware["chip"]=="SS524V100" || $hardware["chip"]=="SS528V100" || $hardware["chip"]=="HI3531DV200") {
+                            ?>
+                                <div class="form-group">
+                                    <label class="col-sm-4 control-label">
+                                        <cn>左右镜像</cn>
+                                        <en>mirror</en>
+                                    </label>
+                                    <div class="col-sm-6">
+                                        <input type="checkbox" zcfg="output2.mirror" class="switch form-control">
+                                    </div>
+                                </div>
+                            <?php
+                            }
+                            ?>
 							<div class="form-group">
 								<label class="col-sm-4 control-label">
 									<cn>视频源</cn>
@@ -433,10 +465,10 @@ include("head.php");
 
 			if (config[i].type != "mix")
 				continue;
+
 			mixV = config[i].srcV;
 			$("#channels").append('<option value="' + config[i].id + '">' + config[i].name + '</option>');
 			zcfg("#output", config[i]);
-
 		}
 
 		setInterval(show, 300);
diff --git a/rootfs/link/web/rproxy.php b/rootfs/link/web/rproxy.php
index 3dd56a3..744bd52 100644
--- a/rootfs/link/web/rproxy.php
+++ b/rootfs/link/web/rproxy.php
@@ -5,7 +5,7 @@ include( "head.php" );
 <div class="row">
 	<div class="col-md-8 col-md-offset-2">
 		<div class="panel panel-default">
-			<div class="title">
+			<div class="panel-heading">
 				<h3 class="panel-title">
 					<cn>远程访问</cn>
 					<en>Reverse Proxy</en>
@@ -96,13 +96,70 @@ include( "head.php" );
 	</div>
 </div>
 -->
+<div class="row">
+    <div class="col-md-8 col-md-offset-2">
+        <div class="panel panel-default">
+            <div class="panel-heading">
+                <h3 class="panel-title">
+                    Rtty
+                </h3>
+            </div>
+            <div class="panel-body">
+                <form class="form-horizontal" id="rtty" role="form">
+                    <div class="form-group">
+                        <label class="col-sm-2 control-label">
+                            <cn>启用</cn>
+                            <en>Enable</en>
+                        </label>
+                        <div class="col-sm-2">
+                            <input type="checkbox" zcfg="enable" class="switch form-control">
+                        </div>
+                    </div>
+                    <div class="form-group">
+                        <label class="col-sm-2 control-label">
+                            <cn>描述</cn>
+                            <en>Des</en>
+                        </label>
+                        <div class="col-sm-6">
+                            <input type="text" zcfg="des" class="form-control"/>
+                        </div>
+                    </div>
+                    <div class="form-group">
+                        <label class="col-sm-2 control-label">IP</label>
+                        <div class="col-sm-6">
+                            <input type="text" zcfg="ip" class="form-control"/>
+                        </div>
+                    </div>
+                    <div class="form-group">
+                        <label class="col-sm-2 control-label">ID</label>
+                        <div class="col-sm-6">
+                            <input type="text" zcfg="id" class="form-control" readonly disabled />
+                        </div>
+                    </div>
+                    <div class="form-group">
+                        <label class="col-sm-2 control-label">Token</label>
+                        <div class="col-sm-6">
+                            <input type="text" zcfg="token" class="form-control"/>
+                        </div>
+                    </div>
+                    <hr>
+                    <div class="form-group">
+                        <button type="button" id="save_rtty" class=" save btn btn-warning col-sm-4 col-sm-offset-4">
+                            <cn>保存</cn><en>Save</en>
+                        </button>
+                    </div>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
 
 <div class="row">
 	<div class="col-md-8 col-md-offset-2">
 		<div class="panel panel-default">
 			<div class="panel-heading">
 				<h3 class="panel-title">
-					frp
+					Frp
 				</h3>
 			</div>
 			<div class="panel-body">
@@ -127,7 +184,7 @@ include( "head.php" );
 					</div>
 					<hr>
 					<div class="form-group">
-						<button type="button" id="save_frp" class=" save btn btn-warning col-sm-6 col-sm-offset-3">
+						<button type="button" id="save_frp" class=" save btn btn-warning col-sm-4 col-sm-offset-4">
 							<cn>保存</cn><en>Save</en>
 						</button>
 					</div>
@@ -137,6 +194,7 @@ include( "head.php" );
 	</div>
 </div>
 
+
 <div class="modal fade" id="bindModal" tabindex="-1" role="dialog">
 	<div class="modal-dialog" role="document">
 		<div class="modal-content">
@@ -176,7 +234,18 @@ include( "head.php" );
 		} );
 		}
 		initMqtt();
-		
+
+        var rttyCfg;
+        function initRtty() {
+            $.getJSON( "config/rtty.json", function (resutl) {
+                rttyCfg = resutl;
+                rpc("enc.getSN",[],function (sn) {
+                    rttyCfg.id = sn;
+                    zcfg( "#rtty",rttyCfg );
+                })
+            })
+        }
+        initRtty();
 
 		//$( '#bindModal' ).modal( 'show' );
 
@@ -259,7 +328,6 @@ include( "head.php" );
 			}
 		} ).responseText;
 
-
 /*
 		$( "#save_ngrok" ).click( function ( e ) {
 			func( "setNgrok", $( "#ngrok" ).serialize(), function ( res ) {
@@ -284,6 +352,16 @@ include( "head.php" );
 			} );
 		} );		
 
+        $("#save_rtty").click(function () {
+            func("saveConfigFile",{path: "config/rtty.json",data:JSON.stringify(rttyCfg,null,2)},function (res) {
+                if(res.result == "OK") {
+                    func("reloadRtty");
+                    htmlAlert( "#alert", "success", "<cn>保存成功</cn><en>Saved successfully!</en>", "", 2000 );
+                } else {
+                    htmlAlert( "#alert", "danger", "<cn>保存设置失败</cn><en>Save config failed</en>！", "", 2000 );
+                }
+            });
+        });
 	} );
 </script>
 <?php
diff --git a/rootfs/usr/bin/fw_printenv b/rootfs/usr/bin/fw_printenv
new file mode 100644
index 0000000..12376e3
Binary files /dev/null and b/rootfs/usr/bin/fw_printenv differ
diff --git a/rootfs/usr/bin/fw_setenv b/rootfs/usr/bin/fw_setenv
new file mode 100644
index 0000000..1a19362
Binary files /dev/null and b/rootfs/usr/bin/fw_setenv differ
diff --git a/rootfs/usr/bin/rtty b/rootfs/usr/bin/rtty
new file mode 100644
index 0000000..b91f9ae
Binary files /dev/null and b/rootfs/usr/bin/rtty differ
diff --git a/rootfs/usr/lib/libLinkBase.so.1.0.0 b/rootfs/usr/lib/libLinkBase.so.1.0.0
index 98ccaa2..55ee1ae 100644
Binary files a/rootfs/usr/lib/libLinkBase.so.1.0.0 and b/rootfs/usr/lib/libLinkBase.so.1.0.0 differ
diff --git a/rootfs/usr/lib/libLinkIO.so.1.0.0 b/rootfs/usr/lib/libLinkIO.so.1.0.0
index a18692e..d29a6a9 100644
Binary files a/rootfs/usr/lib/libLinkIO.so.1.0.0 and b/rootfs/usr/lib/libLinkIO.so.1.0.0 differ
diff --git a/rootfs/usr/lib/libLinkNDI.so.1.0.0 b/rootfs/usr/lib/libLinkNDI.so.1.0.0
index df61450..3885b51 100644
Binary files a/rootfs/usr/lib/libLinkNDI.so.1.0.0 and b/rootfs/usr/lib/libLinkNDI.so.1.0.0 differ
diff --git a/rootfs/usr/lib/libLinkRTLP.so.1.0.0 b/rootfs/usr/lib/libLinkRTLP.so.1.0.0
index f8afc8e..eacce74 100644
Binary files a/rootfs/usr/lib/libLinkRTLP.so.1.0.0 and b/rootfs/usr/lib/libLinkRTLP.so.1.0.0 differ
diff --git a/rootfs/usr/lib/libavformat.so.58.23.100 b/rootfs/usr/lib/libavformat.so.58.23.100
index d6f7f82..c569249 100644
Binary files a/rootfs/usr/lib/libavformat.so.58.23.100 and b/rootfs/usr/lib/libavformat.so.58.23.100 differ
diff --git a/rootfs/usr/lib/libev.so b/rootfs/usr/lib/libev.so
new file mode 120000
index 0000000..be209f0
--- /dev/null
+++ b/rootfs/usr/lib/libev.so
@@ -0,0 +1 @@
+libev.so.4.0.0
\ No newline at end of file
diff --git a/rootfs/usr/lib/libev.so.4 b/rootfs/usr/lib/libev.so.4
new file mode 120000
index 0000000..be209f0
--- /dev/null
+++ b/rootfs/usr/lib/libev.so.4
@@ -0,0 +1 @@
+libev.so.4.0.0
\ No newline at end of file
diff --git a/rootfs/usr/lib/libev.so.4.0.0 b/rootfs/usr/lib/libev.so.4.0.0
new file mode 100644
index 0000000..637e330
Binary files /dev/null and b/rootfs/usr/lib/libev.so.4.0.0 differ
diff --git a/rootfs/usr/lib/libubootenv.so b/rootfs/usr/lib/libubootenv.so
new file mode 120000
index 0000000..975e789
--- /dev/null
+++ b/rootfs/usr/lib/libubootenv.so
@@ -0,0 +1 @@
+libubootenv.so.0
\ No newline at end of file
diff --git a/rootfs/usr/lib/libubootenv.so.0 b/rootfs/usr/lib/libubootenv.so.0
new file mode 120000
index 0000000..c7366f6
--- /dev/null
+++ b/rootfs/usr/lib/libubootenv.so.0
@@ -0,0 +1 @@
+libubootenv.so.0.3.3
\ No newline at end of file
diff --git a/rootfs/usr/lib/libubootenv.so.0.3.3 b/rootfs/usr/lib/libubootenv.so.0.3.3
new file mode 100644
index 0000000..c6973a0
Binary files /dev/null and b/rootfs/usr/lib/libubootenv.so.0.3.3 differ
diff --git a/rootfs/usr/php/etc/php-fpm.conf b/rootfs/usr/php/etc/php-fpm.conf
index 5c1d1a1..41b4b47 100644
--- a/rootfs/usr/php/etc/php-fpm.conf
+++ b/rootfs/usr/php/etc/php-fpm.conf
@@ -502,6 +502,7 @@ catch_workers_output = yes
 ; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are taken from
 ; the current environment.
 ; Default Value: clean env
+env[LD_LIBRARY_PATH] = /lib:/usr/lib:/usr/local/lib
 ;env[HOSTNAME] = $HOSTNAME
 ;env[PATH] = /usr/local/bin:/usr/bin:/bin
 ;env[TMP] = /tmp