diff --git a/Pixel3XL/SimpleFbDxe/SimpleFbDxe.c b/Pixel3XL/SimpleFbDxe/SimpleFbDxe.c
index 40155b8..04ef090 100644
--- a/Pixel3XL/SimpleFbDxe/SimpleFbDxe.c
+++ b/Pixel3XL/SimpleFbDxe/SimpleFbDxe.c
@@ -497,6 +497,10 @@ SimpleFbDxeInitialize
 
     ASSERT_EFI_ERROR (Status);
 
+    // zhuowei: clear the screen
+    ZeroMem((void*)FrameBufferAddress, FrameBufferSize);
+    // zhuowei: end
+
     return Status;
 
-}
\ No newline at end of file
+}