diff --git a/frontend-admin/metro.config.js b/frontend-admin/metro.config.js
deleted file mode 100644
index f5f4dd1b..00000000
--- a/frontend-admin/metro.config.js
+++ /dev/null
@@ -1,29 +0,0 @@
-const { getDefaultConfig } = require('expo/metro-config');
-
-const IS_PROD = process.env.NODE_ENV === 'production';
-
-const config = getDefaultConfig(__dirname);
-
-if (IS_PROD) {
-    config.transformer = {
-        ...config.transformer,
-        babelTransformerPath: require.resolve('react-native-obfuscating-transformer'),
-        obfuscatorOptions: {
-            compact: true,
-            identifierNamesGenerator: 'hexadecimal',
-            renameGlobals: false,
-            rotateStringArray: true,
-            stringArray: true,
-            stringArrayEncoding: ['base64'],
-            stringArrayThreshold: 0.75,
-            // Disabled: incompatible with Hermes
-            selfDefending: false,
-            controlFlowFlattening: false,
-            deadCodeInjection: false,
-            transformObjectKeys: false,
-            debugProtection: false,
-        },
-    };
-}
-
-module.exports = config;
diff --git a/frontend-admin/package.json b/frontend-admin/package.json
index b61c9b20..5bd6565a 100644
--- a/frontend-admin/package.json
+++ b/frontend-admin/package.json
@@ -40,8 +40,6 @@
   "devDependencies": {
     "@expo/ngrok": "^4.1.3",
     "@types/react": "~19.1.0",
-    "javascript-obfuscator": "^4.1.1",
-    "react-native-obfuscating-transformer": "^1.0.0",
     "typescript": "~5.9.2"
   },
   "private": true
diff --git a/frontend-admin/src/screens/admin/UsersScreen.tsx b/frontend-admin/src/screens/admin/UsersScreen.tsx
index 4d72014c..c380c735 100644
--- a/frontend-admin/src/screens/admin/UsersScreen.tsx
+++ b/frontend-admin/src/screens/admin/UsersScreen.tsx
@@ -419,10 +419,11 @@ export default function UsersScreen() {
             }
         }
         setCreating(true);
+        const usernameToCreate = createUsername.trim();
         try {
             if (createType === "client") {
                 await createClientByAdmin({
-                    username: createUsername.trim(),
+                    username: usernameToCreate,
                     password: createPassword.trim(),
                     nom: createNom.trim(),
                     prenom: createPrenom.trim(),
@@ -430,7 +431,7 @@ export default function UsersScreen() {
                 });
             } else {
                 await createUserByAdmin({
-                    username: createUsername.trim(),
+                    username: usernameToCreate,
                     password: createPassword.trim(),
                     role: createType,
                 });
@@ -438,6 +439,29 @@ export default function UsersScreen() {
             setCreateModal(false);
             await loadData();
         } catch (e: any) {
+            // Erreur réseau : pas de réponse HTTP reçue — le backend a peut-être
+            // quand même créé l'utilisateur. On recharge et on vérifie.
+            if (!e.response) {
+                try {
+                    if (createType === "client") {
+                        const freshClients = await getAllClients();
+                        setClients(freshClients);
+                        if (freshClients.find((c) => c.username === usernameToCreate)) {
+                            setCreateModal(false);
+                            return;
+                        }
+                    } else {
+                        const freshUsers = await getAllUsers();
+                        setUsers(freshUsers);
+                        if (freshUsers.find((u: any) => u.username === usernameToCreate)) {
+                            setCreateModal(false);
+                            return;
+                        }
+                    }
+                } catch {
+                    /* ignore, on affiche l'erreur originale */
+                }
+            }
             showError("Erreur", e.response?.data?.error || e.message);
         } finally {
             setCreating(false);
diff --git a/mobile/metro.config.js b/mobile/metro.config.js
deleted file mode 100644
index f5f4dd1b..00000000
--- a/mobile/metro.config.js
+++ /dev/null
@@ -1,29 +0,0 @@
-const { getDefaultConfig } = require('expo/metro-config');
-
-const IS_PROD = process.env.NODE_ENV === 'production';
-
-const config = getDefaultConfig(__dirname);
-
-if (IS_PROD) {
-    config.transformer = {
-        ...config.transformer,
-        babelTransformerPath: require.resolve('react-native-obfuscating-transformer'),
-        obfuscatorOptions: {
-            compact: true,
-            identifierNamesGenerator: 'hexadecimal',
-            renameGlobals: false,
-            rotateStringArray: true,
-            stringArray: true,
-            stringArrayEncoding: ['base64'],
-            stringArrayThreshold: 0.75,
-            // Disabled: incompatible with Hermes
-            selfDefending: false,
-            controlFlowFlattening: false,
-            deadCodeInjection: false,
-            transformObjectKeys: false,
-            debugProtection: false,
-        },
-    };
-}
-
-module.exports = config;
diff --git a/mobile/package.json b/mobile/package.json
index be46acb4..1e085603 100644
--- a/mobile/package.json
+++ b/mobile/package.json
@@ -42,8 +42,6 @@
   "devDependencies": {
     "@expo/ngrok": "^4.1.3",
     "@types/react": "~19.1.0",
-    "javascript-obfuscator": "^4.1.1",
-    "react-native-obfuscating-transformer": "^1.0.0",
     "typescript": "~5.9.2"
   },
   "private": true,