diff --git a/src/pages/admin/AdminDatabaseHealthPage.tsx b/src/pages/admin/AdminDatabaseHealthPage.tsx
index 32bcaae..f83e103 100644
--- a/src/pages/admin/AdminDatabaseHealthPage.tsx
+++ b/src/pages/admin/AdminDatabaseHealthPage.tsx
@@ -957,24 +957,37 @@ const MigrationTab: React.FC = () => {
     e.preventDefault();
   };
 
-  // --- Restore: Validate ---
+  // --- Restore: Validate (uploads file to server, streams to disk) ---
+  const importTokenRef = useRef('');
+
   const _validateFile = async (file: File) => {
     setValidating(true);
     setValidation(null);
+    importTokenRef.current = '';
     try {
       const formData = new FormData();
       formData.append('file', file);
-      const res = await api.post('/api/admin/database-health/migration/validate', formData, {
+      const res = await api.post('/api/admin/database-health/migration/upload-import', formData, {
         headers: { 'Content-Type': 'multipart/form-data' },
+        timeout: 0,
+      });
+      importTokenRef.current = res.data.token || '';
+      setValidation({
+        valid: res.data.valid,
+        summary: (res.data.databases || []).map((d: any) => ({
+          database: d.database,
+          tableCount: d.tableCount,
+          recordCount: d.recordCount,
+          registered: true,
+        })),
+        warnings: res.data.warnings || [],
+        systemObjectsFound: res.data.systemObjectsFound || [],
       });
-      setValidation(res.data);
     } catch (err: any) {
       const detail = err?.response?.data?.detail;
       setValidation({
-        valid: false,
-        summary: [],
-        warnings: [typeof detail === 'string' ? detail : t('Validierung fehlgeschlagen')],
-        systemObjectsFound: [],
+        valid: false, summary: [], systemObjectsFound: [],
+        warnings: [typeof detail === 'string' ? detail : t('Upload oder Validierung fehlgeschlagen')],
       });
     } finally {
       setValidating(false);
@@ -989,7 +1002,7 @@ const MigrationTab: React.FC = () => {
   }, []);
 
   const _startImport = async () => {
-    if (!uploadedFile || !validation?.valid) return;
+    if (!importTokenRef.current || !validation?.valid) return;
 
     const modeLabel = importMode === 'replace'
       ? t('Neu (Datenbank leeren und importieren)')
@@ -1004,39 +1017,13 @@ const MigrationTab: React.FC = () => {
     setImporting(true);
     setImportLog([]);
 
-    _addImportLog(t('Vorbereitung: Datei wird hochgeladen und validiert...'));
-
-    let token = '';
-    let dbList: Array<{ database: string; tableCount: number; recordCount: number }> = [];
-
-    try {
-      const formData = new FormData();
-      formData.append('file', uploadedFile);
-      const prepRes = await api.post('/api/admin/database-health/migration/prepare-import', formData, {
-        headers: { 'Content-Type': 'multipart/form-data' },
-      });
-      token = prepRes.data.token;
-      dbList = prepRes.data.databases || [];
-      const warnings: string[] = prepRes.data.warnings || [];
-      for (const w of warnings) {
-        _addImportLog(t('Warnung: {msg}', { msg: w }), 'error');
-      }
-      _addImportLog(
-        t('Validierung OK: {count} Datenbanken bereit', { count: dbList.length }),
-        'success',
-      );
-    } catch (err: any) {
-      const detail = err?.response?.data?.detail;
-      const msg = typeof detail === 'string' ? detail : detail?.message || t('Vorbereitung fehlgeschlagen');
-      _addImportLog(msg, 'error');
-      toast.showError(msg);
-      setImporting(false);
-      return;
-    }
-
+    const token = importTokenRef.current;
+    const dbList = validation.summary.filter(s => s.registered);
+    const totalDbs = dbList.length;
     let totalRecords = 0;
     let errors = 0;
-    const totalDbs = dbList.length;
+
+    _addImportLog(t('Import gestartet: {count} Datenbanken', { count: totalDbs }));
 
     for (let i = 0; i < dbList.length; i++) {
       const dbInfo = dbList[i];
@@ -1074,7 +1061,6 @@ const MigrationTab: React.FC = () => {
       }
     }
 
-    // Clean up server-side cache
     try { await api.post('/api/admin/database-health/migration/import-done', { token }); } catch { /* ignore */ }
 
     _addImportLog(
@@ -1089,12 +1075,14 @@ const MigrationTab: React.FC = () => {
     } else {
       toast.showSuccess(t('{count} Datensaetze erfolgreich importiert', { count: totalRecords }));
     }
+    importTokenRef.current = '';
     setImporting(false);
   };
 
   const _resetUpload = () => {
     setUploadedFile(null);
     setValidation(null);
+    importTokenRef.current = '';
   };
 
   return (