diff --git a/k230_sdk_overlay/src/big/mpp/kernel/lib/libvpu.a b/k230_sdk_overlay/src/big/mpp/kernel/lib/libvpu.a
deleted file mode 100644
index bb528a7..0000000
Binary files a/k230_sdk_overlay/src/big/mpp/kernel/lib/libvpu.a and /dev/null differ
diff --git a/micropython/port/builtin_py/media/display.py b/micropython/port/builtin_py/media/display.py
index 7e5d009..48ca8bc 100755
--- a/micropython/port/builtin_py/media/display.py
+++ b/micropython/port/builtin_py/media/display.py
@@ -116,8 +116,8 @@ def __del__(self):
     # flag
     @classmethod
     def bind_layer(cls, **kwargs):
-        if cls._is_inited:
-            raise AssertionError("please run Display.bind_layer() before Display.init()")
+        # if cls._is_inited:
+        #     raise AssertionError("please run Display.bind_layer() before Display.init()")
 
         src = kwargs.get('src', None)
         if src is None:
@@ -155,6 +155,12 @@ def bind_layer(cls, **kwargs):
         layer_config = Display.LayerConfig(layer, rect, pix_format, flag, alpha)
         cls._layer_bind_cfg[layer] = Display.BindConfig(src, dst, layer_config)
 
+        if cls._is_inited:
+            if (Display.LAYER_VIDEO1 <= layer <= Display.LAYER_VIDEO2):
+                cls.__config_video_layer(layer_config)
+            elif (Display.LAYER_OSD0 <= i <= Display.LAYER_OSD3):
+                cls.__config_osd_layer(layer_config)
+
     @classmethod
     def unbind_layer(cls, layer):
         if isinstance(cls._layer_bind_cfg[chn], Display.BindConfig):
diff --git a/micropython/port/builtin_py/media/player.py b/micropython/port/builtin_py/media/player.py
index e449a82..7775682 100644
--- a/micropython/port/builtin_py/media/player.py
+++ b/micropython/port/builtin_py/media/player.py
@@ -49,19 +49,19 @@ def _init_media_buffer(self):
                 self.pyaudio = PyAudio()
                 self.pyaudio.initialize(48000//25)
 
-        bind_info = self.vdec.bind_info(width=self.video_info.width,height=self.video_info.height,chn=vdecoder.Decoder.get_free_chn_index())
-        #bind_info = self.vdec.bind_info(width=self.video_info.width,height=self.video_info.height,chn=self.vdec.get_vdec_channel())
-        Display.bind_layer(**bind_info, layer = Display.LAYER_VIDEO1)
-        Display.init(Display.LT9611)
 
+        Display.init(Display.LT9611)
         MediaManager.init()    #vb buffer初始化
 
-        if (self.audio_track):
-            self.adec.create()
-
         if (self.video_track):
             self.vdec.create()
 
+        bind_info = self.vdec.bind_info(width=self.video_info.width,height=self.video_info.height,chn=self.vdec.get_vdec_channel())
+        Display.bind_layer(**bind_info, layer = Display.LAYER_VIDEO1)
+
+        if (self.audio_track):
+            self.adec.create()
+
 
     def _deinit_media_buffer(self):
         if (self.video_track):