diff --git a/html5/verto/js/src/jquery.verto.js b/html5/verto/js/src/jquery.verto.js
index 35210c446b..3a145d2c60 100644
--- a/html5/verto/js/src/jquery.verto.js
+++ b/html5/verto/js/src/jquery.verto.js
@@ -76,16 +76,15 @@
             videoParams: {},
             audioParams: {},
 	    loginParams: {},
-	    deviceParams: {},
+	    deviceParams: {onResCheck: null},
 	    userVariables: {},
             iceServers: false,
             ringSleep: 6000,
 	    sessid: null
         }, options);
 
-
 	if (verto.options.deviceParams.useCamera) {
-	    $.FSRTC.getValidRes(verto.options.deviceParams.useCamera, undefined);
+	    $.FSRTC.getValidRes(verto.options.deviceParams.useCamera, verto.options.deviceParams.onResCheck);
 	} else {
 	    verto.options.deviceParams.useCamera = "any";
 	}
@@ -152,7 +151,7 @@
 	}
 
 	if (obj.useCamera) {
-	    $.FSRTC.getValidRes(verto.options.deviceParams.useCamera, undefined);
+	    $.FSRTC.getValidRes(verto.options.deviceParams.useCamera, obj ? obj.resCheck : undefined);
 	}
     };
 
diff --git a/html5/verto/video_demo/js/verto-min.js b/html5/verto/video_demo/js/verto-min.js
index 2ae6f9d6ad..9d8247f1f6 100644
--- a/html5/verto/video_demo/js/verto-min.js
+++ b/html5/verto/video_demo/js/verto-min.js
@@ -120,14 +120,14 @@ for(i=0;i<this._requests.length;i++){call=this._requests[i];batch_request.push(c
 success_cb=function(data){self._batchCb(data,handlers,self.all_done_cb);};if(self.jsonrpcclient.options.ajaxUrl===null){throw"$.JsonRpcClient.batch used with no websocket and no http endpoint.";}
 $.ajax({url:self.jsonrpcclient.options.ajaxUrl,data:$.toJSON(batch_request),dataType:'json',cache:false,type:'POST',error:function(jqXHR,textStatus,errorThrown){self.error_cb(jqXHR,textStatus,errorThrown);},success:success_cb});};$.JsonRpcClient._batchObject.prototype._batchCb=function(result,handlers,all_done_cb){for(var i=0;i<result.length;i++){var response=result[i];if('error'in response){if(response.id===null||!(response.id in handlers)){if('console'in window)console.log(response);}else{handlers[response.id].error_cb(response.error,this);}}else{if(!(response.id in handlers)&&'console'in window){console.log(response);}else{handlers[response.id].success_cb(response.result,this);}}}
 if(typeof all_done_cb==='function')all_done_cb(result);};})(jQuery);(function($){var sources=[];var generateGUID=(typeof(window.crypto)!=='undefined'&&typeof(window.crypto.getRandomValues)!=='undefined')?function(){var buf=new Uint16Array(8);window.crypto.getRandomValues(buf);var S4=function(num){var ret=num.toString(16);while(ret.length<4){ret="0"+ret;}
-return ret;};return(S4(buf[0])+S4(buf[1])+"-"+S4(buf[2])+"-"+S4(buf[3])+"-"+S4(buf[4])+"-"+S4(buf[5])+S4(buf[6])+S4(buf[7]));}:function(){return'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g,function(c){var r=Math.random()*16|0,v=c=='x'?r:(r&0x3|0x8);return v.toString(16);});};$.verto=function(options,callbacks){var verto=this;$.verto.saved.push(verto);verto.options=$.extend({login:null,passwd:null,socketUrl:null,tag:null,localTag:null,videoParams:{},audioParams:{},loginParams:{},deviceParams:{},userVariables:{},iceServers:false,ringSleep:6000,sessid:null},options);if(verto.options.deviceParams.useCamera){$.FSRTC.getValidRes(verto.options.deviceParams.useCamera,undefined);}else{verto.options.deviceParams.useCamera="any";}
+return ret;};return(S4(buf[0])+S4(buf[1])+"-"+S4(buf[2])+"-"+S4(buf[3])+"-"+S4(buf[4])+"-"+S4(buf[5])+S4(buf[6])+S4(buf[7]));}:function(){return'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g,function(c){var r=Math.random()*16|0,v=c=='x'?r:(r&0x3|0x8);return v.toString(16);});};$.verto=function(options,callbacks){var verto=this;$.verto.saved.push(verto);verto.options=$.extend({login:null,passwd:null,socketUrl:null,tag:null,localTag:null,videoParams:{},audioParams:{},loginParams:{},deviceParams:{onResCheck:null},userVariables:{},iceServers:false,ringSleep:6000,sessid:null},options);if(verto.options.deviceParams.useCamera){$.FSRTC.getValidRes(verto.options.deviceParams.useCamera,verto.options.deviceParams.onResCheck);}else{verto.options.deviceParams.useCamera="any";}
 if(!verto.options.deviceParams.useMic){verto.options.deviceParams.useMic="any";}
 if(!verto.options.deviceParams.useSpeak){verto.options.deviceParams.useSpeak="any";}
 if(verto.options.sessid){verto.sessid=verto.options.sessid;}else{verto.sessid=localStorage.getItem("verto_session_uuid")||generateGUID();localStorage.setItem("verto_session_uuid",verto.sessid);}
 verto.dialogs={};verto.callbacks=callbacks||{};verto.eventSUBS={};verto.rpcClient=new $.JsonRpcClient({login:verto.options.login,passwd:verto.options.passwd,socketUrl:verto.options.socketUrl,loginParams:verto.options.loginParams,userVariables:verto.options.userVariables,sessid:verto.sessid,onmessage:function(e){return verto.handleMessage(e.eventData);},onWSConnect:function(o){o.call('login',{});},onWSLogin:function(success){if(verto.callbacks.onWSLogin){verto.callbacks.onWSLogin(verto,success);}},onWSClose:function(success){if(verto.callbacks.onWSClose){verto.callbacks.onWSClose(verto,success);}
 verto.purge();}});if(verto.options.ringFile&&verto.options.tag){verto.ringer=$("#"+verto.options.tag);}
 verto.rpcClient.call('login',{});};$.verto.prototype.deviceParams=function(obj){var verto=this;for(var i in obj){verto.options.deviceParams[i]=obj[i];}
-if(obj.useCamera){$.FSRTC.getValidRes(verto.options.deviceParams.useCamera,undefined);}};$.verto.prototype.videoParams=function(obj){var verto=this;for(var i in obj){verto.options.videoParams[i]=obj[i];}};$.verto.prototype.iceServers=function(obj){var verto=this;verto.options.iceServers=obj;};$.verto.prototype.loginData=function(params){var verto=this;verto.options.login=params.login;verto.options.passwd=params.passwd;verto.rpcClient.loginData(params);};$.verto.prototype.logout=function(msg){var verto=this;verto.rpcClient.closeSocket();if(verto.callbacks.onWSClose){verto.callbacks.onWSClose(verto,false);}
+if(obj.useCamera){$.FSRTC.getValidRes(verto.options.deviceParams.useCamera,obj?obj.resCheck:undefined);}};$.verto.prototype.videoParams=function(obj){var verto=this;for(var i in obj){verto.options.videoParams[i]=obj[i];}};$.verto.prototype.iceServers=function(obj){var verto=this;verto.options.iceServers=obj;};$.verto.prototype.loginData=function(params){var verto=this;verto.options.login=params.login;verto.options.passwd=params.passwd;verto.rpcClient.loginData(params);};$.verto.prototype.logout=function(msg){var verto=this;verto.rpcClient.closeSocket();if(verto.callbacks.onWSClose){verto.callbacks.onWSClose(verto,false);}
 verto.purge();};$.verto.prototype.login=function(msg){var verto=this;verto.logout();verto.rpcClient.call('login',{});};$.verto.prototype.message=function(msg){var verto=this;var err=0;if(!msg.to){console.error("Missing To");err++;}
 if(!msg.body){console.error("Missing Body");err++;}
 if(err){return false;}