diff --git a/package.json b/package.json
index 40b39fc..35592b2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rapport-server-app",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "private": true,
   "type": "module",
   "description": "Doppelklick-Self-Hosting f\u00fcr Rapport \u2014 Tauri-App, die Postgres, GoTrue, PostgREST, Realtime und Storage als Subprozesse b\u00fcndelt.",
diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index c6d1ace..0c40874 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -3567,7 +3567,7 @@ dependencies = [
 
 [[package]]
 name = "rapport-server-app"
-version = "0.1.1"
+version = "0.1.2"
 dependencies = [
  "axum",
  "axum-server",
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 9edda30..456729f 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rapport-server-app"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2021"
 authors = ["Karim Gabriele Varano"]
 license = "AGPL-3.0-or-later"
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index f320b72..4fc65b7 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2.0.0",
   "productName": "RAPPORT Server",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "identifier": "com.rapport.server-app",
   "build": {
     "beforeDevCommand": "npm run dev",
diff --git a/src/components/AppUpdateBanner.jsx b/src/components/AppUpdateBanner.jsx
index 724c1e1..1a7f0a3 100644
--- a/src/components/AppUpdateBanner.jsx
+++ b/src/components/AppUpdateBanner.jsx
@@ -1,17 +1,16 @@
-// Background-Check fuer App-Updates. Im Tauri-Kontext: nutzt das offizielle
-// @tauri-apps/plugin-updater. Im Browser (Web-UI): kein App-Update moeglich
-// (Browser kann nicht die Server-Mac-App neu installieren) — Banner versteckt.
+// Auto-Update-Banner. Pollt latest.json alle 6h.
+// Bei Klick: Modal-Overlay mit Live-Fortschritt + sichtbare Errors.
 import { useEffect, useState } from 'react'
-import { runtime } from '../api.js'
-import { api } from '../api.js'
+import { runtime, api } from '../api.js'
 
 const CHECK_INTERVAL_MS = 6 * 60 * 60 * 1000
 
 export default function AppUpdateBanner() {
   const [update, setUpdate] = useState(null)
-  const [busy, setBusy] = useState(false)
+  const [showModal, setShowModal] = useState(false)
+  const [step, setStep] = useState('idle')          // idle|backup|download|install|done|error
+  const [progress, setProgress] = useState({ downloaded: 0, total: 0 })
   const [error, setError] = useState(null)
-  const [progress, setProgress] = useState(null)
 
   useEffect(() => {
     if (runtime !== 'tauri') return
@@ -24,10 +23,7 @@ export default function AppUpdateBanner() {
         const u = await check()
         if (alive) setUpdate(u)
       } catch (e) {
-        if (alive) {
-          console.warn('updater check:', e)
-          setError(String(e))
-        }
+        if (alive) console.warn('updater check:', e)
       }
     }
 
@@ -38,53 +34,149 @@ export default function AppUpdateBanner() {
 
   async function install() {
     if (!update) return
-    const ok = window.confirm(
-      `Update auf v${update.version} installieren?\n\n` +
-      'Ablauf:\n' +
-      '  1. pg_dumpall Pre-Backup (auto)\n' +
-      '  2. Neue Binary herunterladen + Signatur pruefen\n' +
-      '  3. App-Restart mit neuer Version\n\n' +
-      'Container laufen waehrend Restart weiter — keine Downtime\n' +
-      'auf der Service-Seite. Admin-UI ist ~10s nicht verfuegbar.'
-    )
-    if (!ok) return
+    setShowModal(true)
+    setError(null)
+    setProgress({ downloaded: 0, total: 0 })
 
-    setBusy(true); setError(null); setProgress('Pre-Backup...')
     try {
-      // 1) Pre-Backup
-      await api.backupNow()
-      setProgress('Update wird heruntergeladen...')
+      setStep('backup')
+      console.log('[update] starting pre-backup')
+      const backup = await api.backupNow()
+      console.log('[update] backup ok:', backup)
 
-      // 2) Download + Install (Tauri plugin uebernimmt restart)
+      setStep('download')
+      console.log('[update] starting download + install')
+      let totalBytes = 0
+      let downloaded = 0
       await update.downloadAndInstall((event) => {
-        // event.event: 'Started' | 'Progress' | 'Finished'
-        if (event.event === 'Progress') {
-          setProgress(`Download: ${event.data.chunkLength} Bytes`)
+        console.log('[update] event:', event.event, event.data ?? '')
+        if (event.event === 'Started') {
+          totalBytes = event.data?.contentLength ?? 0
+          setProgress({ downloaded: 0, total: totalBytes })
+        } else if (event.event === 'Progress') {
+          downloaded += event.data?.chunkLength ?? 0
+          setProgress({ downloaded, total: totalBytes })
         } else if (event.event === 'Finished') {
-          setProgress('Installiert — Restart...')
+          setStep('install')
+          setProgress({ downloaded: totalBytes, total: totalBytes })
         }
       })
-      // Tauri startet die App automatisch neu, dieser Code-Pfad erreicht's nie
+      // Tauri restartet automatisch — sollten wir nie sehen
+      setStep('done')
     } catch (e) {
-      setError(String(e))
-      setBusy(false)
-      setProgress(null)
+      console.error('[update] failed:', e)
+      setStep('error')
+      setError(String(e?.message ?? e))
+    }
+  }
+
+  function close() {
+    if (step === 'idle' || step === 'error' || step === 'done') {
+      setShowModal(false)
+      setStep('idle')
+      setError(null)
     }
   }
 
   if (!update) return null
 
   return (
-    <div className="update-banner">
-      <span className="material-symbols-outlined update-bell">system_update</span>
-      <span className="update-text">
-        Update verfuegbar: <strong>v{update.version}</strong>
-        {update.body && <span className="muted"> · {update.body.split('\n')[0]}</span>}
-      </span>
-      <button onClick={install} disabled={busy}>
-        {busy ? (progress ?? 'Installiere ...') : 'Backup + Installieren'}
-      </button>
-      {error && <span className="error-text">{error}</span>}
+    <>
+      <div className="update-banner">
+        <span className="material-symbols-outlined update-bell">system_update</span>
+        <span className="update-text">
+          Update verfuegbar: <strong>v{update.version}</strong>
+          {update.body && <span className="muted"> · {update.body.split('\n')[0]}</span>}
+        </span>
+        <button onClick={() => setShowModal(true)} disabled={showModal && step !== 'idle' && step !== 'error'}>
+          Backup + Installieren
+        </button>
+      </div>
+
+      {showModal && (
+        <div className="update-modal-backdrop" onClick={step === 'idle' ? close : undefined}>
+          <div className="update-modal" onClick={e => e.stopPropagation()}>
+            <h2>Update auf v{update.version}</h2>
+
+            {step === 'idle' && (
+              <>
+                <p className="muted">Ablauf:</p>
+                <ol className="update-steps">
+                  <li>pg_dumpall Pre-Backup (~10 Sek)</li>
+                  <li>Neue Binary herunterladen + Signatur pruefen (~10-30 Sek)</li>
+                  <li>App-Restart mit neuer Version</li>
+                </ol>
+                <p className="muted">
+                  Container laufen waehrend Restart weiter — keine Downtime auf der
+                  Service-Seite. Admin-UI ist ~10s nicht verfuegbar.
+                </p>
+                <div className="row" style={{ marginTop: 20, justifyContent: 'flex-end' }}>
+                  <button onClick={close}>Abbrechen</button>
+                  <button onClick={install} className="setup-primary">Backup + Installieren</button>
+                </div>
+              </>
+            )}
+
+            {step !== 'idle' && (
+              <div className="update-progress">
+                <Step name="Pre-Backup" state={stepState('backup', step)} />
+                <Step name="Download" state={stepState('download', step)} extra={progressLabel(progress, step)} />
+                <Step name="Installation" state={stepState('install', step)} />
+              </div>
+            )}
+
+            {step === 'error' && (
+              <>
+                <p className="error-text" style={{ marginTop: 16 }}>
+                  <strong>Fehler:</strong>
+                </p>
+                <pre className="update-error-pre">{error}</pre>
+                <div className="row" style={{ marginTop: 16, justifyContent: 'flex-end' }}>
+                  <button onClick={close}>Schliessen</button>
+                </div>
+              </>
+            )}
+
+            {step === 'done' && (
+              <p className="success-text">App restartet jetzt mit der neuen Version ...</p>
+            )}
+          </div>
+        </div>
+      )}
+    </>
+  )
+}
+
+function stepState(target, current) {
+  const order = ['idle', 'backup', 'download', 'install', 'done', 'error']
+  const ti = order.indexOf(target)
+  const ci = order.indexOf(current)
+  if (current === 'error' && ci > ti) return 'error'
+  if (ci > ti) return 'done'
+  if (ci === ti) return 'active'
+  return 'pending'
+}
+
+function progressLabel(p, step) {
+  if (step !== 'download') return ''
+  if (p.total === 0) return 'startet ...'
+  const mb = (b) => (b / 1024 / 1024).toFixed(1) + ' MB'
+  const pct = p.total > 0 ? Math.floor((p.downloaded / p.total) * 100) : 0
+  return `${mb(p.downloaded)} / ${mb(p.total)}  (${pct}%)`
+}
+
+function Step({ name, state, extra }) {
+  const icon = {
+    pending: 'radio_button_unchecked',
+    active: 'progress_activity',
+    done: 'check_circle',
+    error: 'cancel',
+  }[state]
+  return (
+    <div className="update-step" data-state={state}>
+      <span className="material-symbols-outlined update-step-icon">{icon}</span>
+      <span className="update-step-name">{name}</span>
+      {extra && <span className="update-step-extra muted">{extra}</span>}
     </div>
   )
 }
diff --git a/src/styles.css b/src/styles.css
index afe8e92..e6665ea 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -378,6 +378,53 @@ button.setup-primary:hover:not(:disabled) { background: #4a8fff; }
 .icon-inline { font-size: 16px; vertical-align: -3px; margin-right: 6px; }
 .icon-heading { font-size: 20px; vertical-align: -4px; margin-right: 8px; }
 
+/* Update modal */
+.update-modal-backdrop {
+  position: fixed; inset: 0;
+  background: rgba(0,0,0,0.5);
+  z-index: 1000;
+  display: flex; align-items: center; justify-content: center;
+}
+.update-modal {
+  background: var(--bg-card);
+  border: 1px solid var(--border);
+  border-radius: 12px;
+  padding: 24px 28px;
+  width: 480px; max-width: calc(100vw - 40px);
+  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
+}
+.update-modal h2 { margin: 0 0 12px; font-size: 18px; }
+.update-steps { padding-left: 20px; margin: 8px 0 16px; font-size: 13px; }
+.update-steps li { margin: 4px 0; }
+.update-progress { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
+.update-step {
+  display: flex; align-items: center; gap: 10px;
+  padding: 10px 12px;
+  background: rgba(255,255,255,0.03);
+  border-radius: 6px;
+  font-size: 13px;
+}
+.update-step[data-state="active"] { background: rgba(106,168,255,0.12); }
+.update-step[data-state="done"]   { background: rgba(91,208,122,0.10); }
+.update-step[data-state="error"]  { background: rgba(239,90,90,0.12); }
+.update-step-icon { font-size: 20px; line-height: 1; }
+.update-step[data-state="pending"] .update-step-icon { color: var(--gray); }
+.update-step[data-state="active"]  .update-step-icon { color: var(--accent); animation: spin 1.4s linear infinite; }
+.update-step[data-state="done"]    .update-step-icon { color: var(--green); }
+.update-step[data-state="error"]   .update-step-icon { color: var(--red); }
+.update-step-name { flex: 1; }
+.update-step-extra { font-size: 11px; font-family: ui-monospace, monospace; }
+@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
+.update-error-pre {
+  margin: 6px 0 0; padding: 10px 12px;
+  background: rgba(239,90,90,0.06);
+  border: 1px solid rgba(239,90,90,0.3);
+  border-radius: 4px;
+  font-size: 11px; max-height: 200px; overflow: auto;
+  white-space: pre-wrap; word-break: break-word;
+  color: var(--red);
+}
+
 /* App update banner */
 .update-banner {
   display: flex; align-items: center; gap: 12px;