diff --git a/src/xenia/kernel/xam_content.cc b/src/xenia/kernel/xam_content.cc
index bc8a6675f..3abd40fb6 100644
--- a/src/xenia/kernel/xam_content.cc
+++ b/src/xenia/kernel/xam_content.cc
@@ -76,7 +76,7 @@ SHIM_CALL XamShowDeviceSelectorUI_shim(
   XELOGD(
       "XamShowDeviceSelectorUI(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X)",
       arg0, arg1, arg2, arg3, arg4, arg5);
-  SHIM_SET_RETURN_32(997);
+  SHIM_SET_RETURN_32(X_ERROR_IO_PENDING);
 }
 
 
diff --git a/src/xenia/kernel/xam_user.cc b/src/xenia/kernel/xam_user.cc
index 15bf258df..4524d743a 100644
--- a/src/xenia/kernel/xam_user.cc
+++ b/src/xenia/kernel/xam_user.cc
@@ -283,13 +283,19 @@ SHIM_CALL XamWriteGamerTile_shim(
   uint32_t arg2 = SHIM_GET_ARG_32(2);
   uint32_t arg3 = SHIM_GET_ARG_32(3);
   uint32_t arg4 = SHIM_GET_ARG_32(4);
-  uint32_t arg5 = SHIM_GET_ARG_32(5);
+  uint32_t overlapped_ptr = SHIM_GET_ARG_32(5);
 
   XELOGD(
     "XamWriteGamerTile(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X)",
-    arg0, arg1, arg2, arg3, arg4, arg5);
+    arg0, arg1, arg2, arg3, arg4, overlapped_ptr);
 
-  SHIM_SET_RETURN_32(0x3E5);
+  if (overlapped_ptr) {
+    state->CompleteOverlappedImmediate(overlapped_ptr, X_ERROR_SUCCESS);
+    SHIM_SET_RETURN_32(X_ERROR_IO_PENDING);
+  }
+  else {
+    SHIM_SET_RETURN_32(X_ERROR_SUCCESS);
+  }
 }
 
 
diff --git a/src/xenia/xbox.h b/src/xenia/xbox.h
index 633477a9c..52bc8f31e 100644
--- a/src/xenia/xbox.h
+++ b/src/xenia/xbox.h
@@ -76,6 +76,7 @@ typedef uint32_t X_RESULT;
 #define X_ERROR_NOT_FOUND                               X_HRESULT_FROM_WIN32(0x00000490L)
 #define X_ERROR_CANCELLED                               X_HRESULT_FROM_WIN32(0x000004C7L)
 #define X_ERROR_NO_SUCH_USER                            X_HRESULT_FROM_WIN32(0x00000525L)
+#define X_ERROR_FUNCTION_FAILED                         X_HRESULT_FROM_WIN32(0x0000065BL)
 #define X_ERROR_EMPTY                                   X_HRESULT_FROM_WIN32(0x000010D2L)
 
 // MEM_*, used by NtAllocateVirtualMemory