diff --git a/packages/bsp/h3disp b/packages/bsp/h3disp
index 8170c53aa1..b4c89646c0 100644
--- a/packages/bsp/h3disp
+++ b/packages/bsp/h3disp
@@ -390,7 +390,7 @@ PatchScriptBin() {
 		fi
 	fi
 
-	# resolve symlink to modify the original instead of the link
+	# check for symlink
 	ScriptBin="$(readlink -f "${Path2ScriptBin}/script.bin")"
 
 	# create temp file
@@ -427,14 +427,20 @@ PatchScriptBin() {
 		FexChange "${MyTmpFile}" "hdmi_para" "hdmi_cts_compatibility" "0"
 	fi
 
-	# convert temporary fex file back to script.bin
-	fex2bin "${MyTmpFile}" "${ScriptBin}" 2>/dev/null
+	# convert temporary fex file back to script.bin. We delete symlinks to
+	# prevent future board support package updates overwriting h3disp changes
+	rm "${Path2ScriptBin}/script.bin"
+	fex2bin "${MyTmpFile}" "${Path2ScriptBin}/script.bin" 2>/dev/null
 	if [ $? -ne 0 ]; then
-	        mv "${Path2ScriptBin}/script.bin.bak" "${ScriptBin}"
-	        echo -e "Aborted\nWriting script.bin went wrong. Nothing changed." >&2
-	        echo -e "You may look at ${MyTmpFile} to see if there is an error there." >&2
-	        logger "Writing script.bin went wrong. Nothing changed"
-	        exit 1
+		mv "${Path2ScriptBin}/script.bin.bak" "${ScriptBin}"
+		if [ "${ScriptBin}" != "${Path2ScriptBin}/script.bin" ]; then
+			cd "${Path2ScriptBin}"
+			ln -sf "${ScriptBin}" script.bin
+		fi
+		echo -e "Aborted\nWriting script.bin went wrong. Nothing changed." >&2
+		echo -e "You may look at ${MyTmpFile} to see if there is an error there." >&2
+		logger "Writing script.bin went wrong. Nothing changed"
+		exit 1
 	else rm "${MyTmpFile}"
 	fi
 } # PatchScriptBin