diff --git a/src/dynamic_libs/os_functions.c b/src/dynamic_libs/os_functions.c
index 93c4f5f..d9f59d7 100644
--- a/src/dynamic_libs/os_functions.c
+++ b/src/dynamic_libs/os_functions.c
@@ -75,6 +75,7 @@ EXPORT_DECL(int, OSScreenPutFontEx, unsigned int bufferNum, unsigned int posX, u
 EXPORT_DECL(int, OSScreenEnableEx, unsigned int bufferNum, int enable);
 
 EXPORT_DECL(int, IOS_Ioctl,int fd, unsigned int request, void *input_buffer,unsigned int input_buffer_len, void *output_buffer, unsigned int output_buffer_len);
+EXPORT_DECL(int, IOS_IoctlAsync,int fd, unsigned int request, void *input_buffer,unsigned int input_buffer_len, void *output_buffer, unsigned int output_buffer_len, void *cb, void *cbarg);
 EXPORT_DECL(int, IOS_Open,char *path, unsigned int mode);
 EXPORT_DECL(int, IOS_Close,int fd);
 
@@ -94,6 +95,12 @@ EXPORT_DECL(int , MEMCreateExpHeapEx, void* address, unsigned int size, unsigned
 EXPORT_DECL(void *, MEMDestroyExpHeap, int heap);
 EXPORT_DECL(void, MEMFreeToExpHeap, int heap, void* ptr);
 
+//!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+//! MCP functions
+//!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+EXPORT_DECL(int, MCP_Open, void);
+EXPORT_DECL(int, MCP_Close, int handle);
+
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 //! Loader functions (not real rpl)
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
@@ -150,6 +157,11 @@ void InitOSFunctionPointers(void)
     OS_FIND_EXPORT(coreinit_handle, OSLockMutex);
     OS_FIND_EXPORT(coreinit_handle, OSUnlockMutex);
     OS_FIND_EXPORT(coreinit_handle, OSTryLockMutex);
+    //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    //! MCP functions
+    //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    OS_FIND_EXPORT(coreinit_handle, MCP_Open);
+    OS_FIND_EXPORT(coreinit_handle, MCP_Close);
 
     //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     //! Memory functions
@@ -171,6 +183,7 @@ void InitOSFunctionPointers(void)
     //! Other function addresses
     //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     OS_FIND_EXPORT(coreinit_handle, IOS_Ioctl);
+	OS_FIND_EXPORT(coreinit_handle, IOS_IoctlAsync);
     OS_FIND_EXPORT(coreinit_handle, IOS_Open);
     OS_FIND_EXPORT(coreinit_handle, IOS_Close);
 }
diff --git a/src/dynamic_libs/os_functions.h b/src/dynamic_libs/os_functions.h
index 11c46b6..d11c6e0 100644
--- a/src/dynamic_libs/os_functions.h
+++ b/src/dynamic_libs/os_functions.h
@@ -95,6 +95,12 @@ extern void (* OSLockMutex)(void* mutex);
 extern void (* OSUnlockMutex)(void* mutex);
 extern int (* OSTryLockMutex)(void* mutex);
 
+//!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+//! MCP functions
+//!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+extern int (* MCP_Open)(void);
+extern int (* MCP_Close)(int handle);
+
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 //! System functions
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
@@ -106,6 +112,7 @@ extern void (* ICInvalidateRange)(const void *addr, u32 length);
 extern void* (* OSEffectiveToPhysical)(const void*);
 extern int (* __os_snprintf)(char* s, int n, const char * format, ...);
 extern int (*IOS_Ioctl)(int fd, unsigned int request, void *input_buffer,unsigned int input_buffer_len, void *output_buffer, unsigned int output_buffer_len);
+extern int (*IOS_IoctlAsync)(int fd, unsigned int request, void *input_buffer,unsigned int input_buffer_len, void *output_buffer, unsigned int output_buffer_len, void *cb, void *cbarg);
 extern int (*IOS_Open)(char *path, unsigned int mode);
 extern int (*IOS_Close)(int fd);
 
diff --git a/src/main.c b/src/main.c
index ab68275..cef6945 100644
--- a/src/main.c
+++ b/src/main.c
@@ -83,6 +83,43 @@ void console_printf(const char *format, ...)
 	OSScreenFlipBuffersEx(1);
 }
 
+//just to be able to call async
+void someFunc(void *arg)
+{
+    (void)arg;
+}
+
+static int mcp_hook_fd = -1;
+int MCPHookOpen()
+{
+    //take over mcp thread
+    mcp_hook_fd = MCP_Open();
+    if(mcp_hook_fd < 0)
+        return -1;
+    IOS_IoctlAsync(mcp_hook_fd, 0x62, (void*)0, 0, (void*)0, 0, someFunc, (void*)0);
+    //let wupserver start up
+    sleep(1);
+    if(IOSUHAX_Open("/dev/mcp") < 0)
+    {
+        MCP_Close(mcp_hook_fd);
+        mcp_hook_fd = -1;
+        return -1;
+    }
+    return 0;
+}
+
+void MCPHookClose()
+{
+    if(mcp_hook_fd < 0)
+        return;
+    //close down wupserver, return control to mcp
+    IOSUHAX_Close();
+    //wait for mcp to return
+    sleep(1);
+    MCP_Close(mcp_hook_fd);
+    mcp_hook_fd = -1;
+}
+
 /* Entry point */
 int Menu_Main(void)
 {
@@ -117,6 +154,8 @@ int Menu_Main(void)
     int iosuhaxMount = 0;
 
     int res = IOSUHAX_Open(NULL);
+    if(res < 0)
+        res = MCPHookOpen();
     if(res < 0)
     {
         log_printf("IOSUHAX_open failed\n");
@@ -253,7 +292,10 @@ int Menu_Main(void)
         unmount_fs("storage_mlc");
         unmount_fs("storage_usb");
         IOSUHAX_FSA_Close(fsaFd);
-        IOSUHAX_Close();
+        if(mcp_hook_fd >= 0)
+            MCPHookClose();
+        else
+            IOSUHAX_Close();
     }
     else
     {