diff --git a/config/database.js b/config/database.js
index 78b2718..1e23354 100644
--- a/config/database.js
+++ b/config/database.js
@@ -546,9 +546,7 @@ function forceUnlockCoreMenus() {
     let states = rowStates ? JSON.parse(rowStates.value) : {};
     let keys = rowKeys ? JSON.parse(rowKeys.value) : {};
     
-    const hasGit = fs.existsSync(path.join(__dirname, '..', '.git'));
-    const coreMenus = ['mikrotik', 'radius_server', 'whatsapp', 'broadcast', 'settings', 'backup', 'monitoring', 'audit_logs'];
-    if (hasGit) coreMenus.push('update');
+    const coreMenus = ['mikrotik', 'radius_server', 'whatsapp', 'broadcast', 'update', 'settings', 'backup', 'monitoring', 'audit_logs'];
     const passwordHash = 'af03458614be223016c5bc1c0788eaefc6a6bfd0c11cdcd4bc520f49d0cb474a'; // hash kode aktivasi default — plaintext hanya di settings.json (activation_code)
     
     const crypto = require('crypto');
@@ -571,8 +569,6 @@ function forceUnlockCoreMenus() {
       }
     }
 
-    if (!hasGit && states['update'] !== 'hidden') { states['update'] = 'hidden'; changed = true; }
-
     if (changed) {
       const now = new Date().toISOString();
       db.prepare('INSERT OR REPLACE INTO app_settings (key, value, updated_at) VALUES (?, ?, ?)').run(SETTINGS_KEY, JSON.stringify(states), now);
diff --git a/routes/adminPortal.js b/routes/adminPortal.js
index 7d6479d..7a6bf7f 100644
--- a/routes/adminPortal.js
+++ b/routes/adminPortal.js
@@ -384,7 +384,9 @@ function getUpdateInfo(repoRoot) {
 
   const inside = runCmd('git', ['rev-parse', '--is-inside-work-tree'], repoRoot);
   if (!inside.ok) {
-    info.error = 'Folder ini belum menjadi git repository.';
+    // Tanpa .git (Docker/container): update dilakukan via rebuild image (bukan git)
+    info.container = true;
+    info.containerMessage = 'Instalasi ini berjalan sebagai kontainer/gambar (tanpa .git). Pembaruan dilakukan dengan membangun ulang image dari repo terbaru.';
     return info;
   }
 
@@ -4554,6 +4556,10 @@ router.get('/update', requireAdminSession, requireSidebarMenuAccess('update'), r
 
 router.post('/update/run', requireAdminSession, restrictToAdmin, (req, res) => {
   const repoRoot = path.resolve(__dirname, '..');
+  if (!runCmd('git', ['rev-parse', '--is-inside-work-tree'], repoRoot).ok) {
+    req.session._msg = { type: 'error', text: 'Instalasi kontainer (tanpa .git): pembaruan dilakukan dengan rebuild image, bukan lewat git.' };
+    return res.redirect('/admin/update');
+  }
   const log = [];
   const pushCmd = (label, r) => {
     log.push(`$ ${label}`.trim());
diff --git a/views/admin/update.ejs b/views/admin/update.ejs
index 5fa532d..544a488 100644
--- a/views/admin/update.ejs
+++ b/views/admin/update.ejs
@@ -29,6 +29,17 @@
         <% if (info && info.error) { %>
           <div class="alert alert-d"><i class="bi bi-exclamation-circle"></i> <%= info.error %></div>
         <% } %>
+        <% if (info && info.container) { %>
+          <div class="alert" style="background:rgba(59,130,246,.08);border:1px solid rgba(59,130,246,.3);border-radius:10px;padding:12px 14px;font-size:13px;line-height:1.55">
+            <b><i class="bi bi-box-seam"></i> <%= t('admin.update.container_title', 'Instalasi Container (tanpa .git)') %></b><br>
+            <%= t('admin.update.container_msg', 'Pembaruan TIDAK lewat git. Bangun ulang image dari repo terbaru lalu ganti container:') %>
+            <div style="margin-top:8px;font-family:monospace;font-size:12px;background:rgba(0,0,0,.25);padding:8px 10px;border-radius:8px">
+              docker compose build &amp;&amp; docker compose up -d<br>
+              # atau: build image baru, lalu ganti tag/container
+            </div>
+            <%= t('admin.update.container_safe', 'Data (settings.json, database, uploads) tetap aman bila disimpan di volume/mount.') %>
+          </div>
+        <% } %>
         <div class="form-row" style="align-items:flex-start">
           <div class="fg">
             <label class="fl"><%= t('admin.update.server_version', 'Versi Server (version.txt)') %></label>
@@ -51,6 +62,7 @@
           </div>
         </div>
 
+        <% if (!(info && info.container)) { %>
         <div style="display:flex;gap:10px;flex-wrap:wrap;margin-top:12px">
           <form method="GET" action="/admin/update">
             <button type="submit" class="btn btn-g"><i class="bi bi-arrow-repeat"></i> <%= t('admin.update.check', 'Cek Versi') %></button>
@@ -63,6 +75,7 @@
         <div style="margin-top:12px;color:var(--muted);font-size:12px;line-height:1.5">
           <%= t('admin.update.keep_files', 'File yang tidak ditimpa saat update: settings.json dan folder database. Setelah update selesai, restart aplikasi agar versi baru aktif.') %>
         </div>
+        <% } %>
       </div>
     </div>