diff --git a/.github/workflows/gitea-release.yml b/.github/workflows/gitea-release.yml
index 986faac..871fe58 100644
--- a/.github/workflows/gitea-release.yml
+++ b/.github/workflows/gitea-release.yml
@@ -41,7 +41,7 @@ jobs:
         cp .pio/build/esp32dev/firmware.bin .pio/build/esp32dev/upgrade_filaman_firmware_v${VERSION}.bin
         
         # Create SPIFFS binary with minimal header
-        ( printf '\xe9\x01\x00\x00' && cat .pio/build/esp32dev/spiffs.bin ) > .pio/build/esp32dev/upgrade_filaman_website_v${VERSION}.bin
+        ( printf '\xe9' && cat .pio/build/esp32dev/spiffs.bin ) > .pio/build/esp32dev/upgrade_filaman_website_v${VERSION}.bin
         
         # Create full binary
         (cd .pio/build/esp32dev && 
diff --git a/html/upgrade.html b/html/upgrade.html
index a13281a..e35e495 100644
--- a/html/upgrade.html
+++ b/html/upgrade.html
@@ -189,13 +189,6 @@
 
             const xhr = new XMLHttpRequest();
             xhr.open('POST', '/update', true);
-            xhr.upload.onprogress = (e) => {
-                if (e.lengthComputable) {
-                    const percentComplete = (e.loaded / e.total) * 100;
-                    progress.style.width = percentComplete + '%';
-                    progress.textContent = Math.round(percentComplete) + '%';
-                }
-            };
 
             xhr.onload = function() {
                 try {
@@ -203,41 +196,27 @@
                     try {
                         const jsonResponse = JSON.parse(response);
                         
-                        // Handle progress updates
-                        if (jsonResponse.progress !== undefined) {
-                            const percent = jsonResponse.progress;
-                            progress.style.width = percent + '%';
-                            progress.textContent = Math.round(percent) + '%';
-                            return;
-                        }
+                        // Zeige finale Nachricht
+                        status.textContent = jsonResponse.message || "Update complete";
+                        status.classList.add(jsonResponse.success ? 'success' : 'error');
+                        status.style.display = 'block';
                         
-                        // Handle success/error messages
-                        response = jsonResponse.message;
-                        
-                        if (jsonResponse.restart) {
-                            status.textContent = response + " Redirecting in 20 seconds...";
-                            let countdown = 20;
-                            const timer = setInterval(() => {
-                                countdown--;
-                                if (countdown <= 0) {
-                                    clearInterval(timer);
-                                    window.location.href = '/';
-                                } else {
-                                    status.textContent = response + ` Redirecting in ${countdown} seconds...`;
-                                }
-                            }, 1000);
+                        if (jsonResponse.success) {
+                            progress.style.width = '100%';
+                            progress.textContent = '100%';
+                            
+                            // Automatischer Neustart nach erfolgreicher Aktualisierung
+                            status.textContent = "Update successful! Restarting device...";
+                            setTimeout(() => {
+                                window.location.reload();
+                            }, 5000);
+                        } else {
+                            document.querySelectorAll('form input[type=submit]').forEach(btn => btn.disabled = false);
                         }
                     } catch (e) {
                         console.error('JSON parse error:', e);
                         status.textContent = 'Update failed: Invalid response from server';
                         status.classList.add('error');
-                    }
-                    
-                    status.textContent = response;
-                    status.classList.add(xhr.status === 200 ? 'success' : 'error');
-                    status.style.display = 'block';
-                    
-                    if (xhr.status !== 200) {
                         document.querySelectorAll('form input[type=submit]').forEach(btn => btn.disabled = false);
                     }
                 } catch (error) {
diff --git a/src/website.cpp b/src/website.cpp
index 5413d82..585cada 100644
--- a/src/website.cpp
+++ b/src/website.cpp
@@ -7,6 +7,7 @@
 #include "nfc.h"
 #include "scale.h"
 #include "esp_task_wdt.h"
+#include "esp_log.h"
 #include <Update.h>
 #include "display.h"
 
@@ -393,28 +394,31 @@ void setupWebserver(AsyncWebServer &server) {
             oledShowMessage("Upgrade please wait");
 
             if (!index) {
+                // Reduziere Debug-Level während des Updates
+                esp_log_level_set("*", ESP_LOG_ERROR);
+                
                 updateSize = request->contentLength();
                 command = (filename.indexOf("spiffs") > -1) ? U_SPIFFS : U_FLASH;
-                Serial.printf("Update Start: %s\nSize: %u\nCommand: %d\n", filename.c_str(), updateSize, command);
                 
                 if (command == U_SPIFFS) {
-                    Serial.println("Backup JSON configs...");
+                    oledShowMessage("SPIFFS Update...");
                     backupJsonConfigs();
                     
-                    // Deaktiviere alle Validierungen für SPIFFS-Updates
-                    if (!Update.begin(UPDATE_SIZE_UNKNOWN, command)) {
-                        Serial.printf("Update Begin Error: %s\n", Update.errorString());
+                    if (!Update.begin(updateSize, command)) {
                         restoreJsonConfigs();
                         String errorMsg = String("Update begin failed: ") + Update.errorString();
                         request->send(400, "application/json", "{\"success\":false,\"message\":\"" + errorMsg + "\"}");
+                        // Stelle Debug-Level wieder her
+                        esp_log_level_set("*", ESP_LOG_INFO);
                         return;
                     }
                 } else {
-                    // Normale Validierung für Firmware-Updates
+                    oledShowMessage("Firmware Update...");
                     if (!Update.begin(updateSize, command)) {
-                        Serial.printf("Update Begin Error: %s\n", Update.errorString());
                         String errorMsg = String("Update begin failed: ") + Update.errorString();
                         request->send(400, "application/json", "{\"success\":false,\"message\":\"" + errorMsg + "\"}");
+                        // Stelle Debug-Level wieder her
+                        esp_log_level_set("*", ESP_LOG_INFO);
                         return;
                     }
                 }
@@ -422,7 +426,6 @@ void setupWebserver(AsyncWebServer &server) {
 
             if (len) {
                 if (Update.write(data, len) != len) {
-                    Serial.printf("Update Write Error: %s\n", Update.errorString());
                     if (command == U_SPIFFS) {
                         restoreJsonConfigs();
                     }
@@ -431,23 +434,28 @@ void setupWebserver(AsyncWebServer &server) {
                     return;
                 }
                 
-                // Sende den Fortschritt als JSON
-                String progress = "{\"progress\":" + String((index + len) * 100 / updateSize) + "}";
-                request->send(200, "application/json", progress);
+                // Update OLED Display alle 25%
+                static int lastProgress = -1;
+                int currentProgress = (index + len) * 100 / updateSize;
+                if (currentProgress % 25 == 0 && currentProgress != lastProgress) {
+                    lastProgress = currentProgress;
+                    oledShowMessage(String(currentProgress) + "% complete");
+                }
             }
 
             if (final) {
                 if (!Update.end(true)) {
-                    Serial.printf("Update End Error: %s\n", Update.errorString());
                     if (command == U_SPIFFS) {
-                        Serial.println("Restoring JSON configs...");
                         restoreJsonConfigs();
                     }
                     String errorMsg = String("Update end failed: ") + Update.errorString();
                     request->send(400, "application/json", "{\"success\":false,\"message\":\"" + errorMsg + "\"}");
+                    // Stelle Debug-Level wieder her
+                    esp_log_level_set("*", ESP_LOG_INFO);
                     return;
                 }
-                Serial.println("Update Success!");
+                // Stelle Debug-Level wieder her
+                esp_log_level_set("*", ESP_LOG_INFO);
             }
         }
     );