diff --git a/lib/app/app.cpp b/lib/app/app.cpp
index 73e3dd0..3465e44 100644
--- a/lib/app/app.cpp
+++ b/lib/app/app.cpp
@@ -283,18 +283,7 @@ void setupApiDevice()
 	});
 
 	server.on(
-		"/api/device/screen", HTTP_POST, [](AsyncWebServerRequest *request) {
-			AsyncResponseStream *response = request->beginResponseStream("application/json");
-			DynamicJsonDocument doc(117); // https://arduinojson.org/v6/assistant/
-
-			// todo
-			doc["status"] = true;
-			doc["image"]["format"] = "xxx";
-			doc["image"]["width"] = 0;
-			doc["image"]["height"] = 0;
-
-			serializeJson(doc, *response);
-			request->send(response); },
+		"/api/device/screen", HTTP_POST, [](AsyncWebServerRequest *request) {},
 		[](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final) {
 			if (!index)
 			{
@@ -313,6 +302,8 @@ void setupApiDevice()
 				ImageFlushBuffer();
 
 				updateDisplayRequired = true;
+
+				request->send(200, "application/json; charset=utf-8", "{}");
 			}
 		});
 
diff --git a/lib/image/image.cpp b/lib/image/image.cpp
index 9cbb5ae..b077ec4 100644
--- a/lib/image/image.cpp
+++ b/lib/image/image.cpp
@@ -9,9 +9,6 @@ constexpr uint16_t MAX_WIDTH = 640;
 int16_t curRowDelta[MAX_WIDTH + 1];
 int16_t nextRowDelta[MAX_WIDTH + 1];
 
-// TODO auf das umbauen
-//uint8_t curRowDelta[640 / 8];
-
 void setupImage()
 {
 	setupImagePNG();