diff --git a/app.py b/app.py
index 0213f9b..566ab93 100644
--- a/app.py
+++ b/app.py
@@ -2402,8 +2402,14 @@ async function checkUpdate() {
   btn.disabled = true; btn.textContent = '↻ Prüfe…';
   try {
     await api('/update/check', 'POST');
-    await new Promise(r => setTimeout(r, 2000));
-    const u = await api('/update/status');
+    // Warten bis der Server-Check abgeschlossen ist (max 15 s, alle 500 ms)
+    let u;
+    for (let i = 0; i < 30; i++) {
+      await new Promise(r => setTimeout(r, 500));
+      u = await api('/update/status');
+      if (!u.checking) break;
+    }
+    await pollUpdate(); // Badge sofort aktualisieren
     const fl = $('sys-update-flash');
     if (u.available && u.latest) {
       fl.className = 'flash warn'; fl.textContent = 'Update v' + u.latest + ' verfügbar – über das Badge oben installieren.';
diff --git a/version.txt b/version.txt
index 59e9e60..bb83058 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.0.11
+1.0.12