diff --git a/htag/runners/androidapp.py b/htag/runners/androidapp.py
index 4ad008b..d77f2aa 100644
--- a/htag/runners/androidapp.py
+++ b/htag/runners/androidapp.py
@@ -12,7 +12,7 @@
 from htag.render import HRenderer
 from . import commons
 
-import os,json,asyncio
+import os,json,asyncio,socket
 
 import tornado.ioloop
 import tornado.web
@@ -20,6 +20,11 @@
 
 from threading import Thread
 
+def isFree(ip, port):
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    s.settimeout(1)
+    return not (s.connect_ex((ip,port)) == 0)
+
 class WebServer(Thread): # the webserver is ran on a separated thread
 
     def __init__(self,instance,port):
@@ -88,7 +93,10 @@ def go_exit(self):
             self._exiter()
 
     def run(self): # basically, the same code as guy.runAndroid()
-        host,port= "127.0.0.1", 12458
+        host= "127.0.0.1"
+        port = 12458
+        while not isFree(host,port):
+            port+=1
         urlStartPage = f"http://{host}:{port}"
 
         self.server = WebServer(self,port)
@@ -146,8 +154,13 @@ def exit_app(*a,**k):
             @run_on_ui_thread
             def create_webview(self, *args):
                 webview = webView(activity)
-                webview.getSettings().setJavaScriptEnabled(True)
-                webview.getSettings().setDomStorageEnabled(True)
+                webSettings=webview.getSettings()
+                webSettings.setJavaScriptEnabled(True)
+                webSettings.setDomStorageEnabled(True)
+                try:
+                    webSettings.setMediaPlaybackRequiresUserGesture(False) # SDK_INT > 17
+                except:
+                    pass
                 webview.setWebViewClient(webViewClient())
                 activity.setContentView(webview)
                 webview.loadUrl(urlStartPage)               # !important