diff --git a/src/components/AddressQRCode.tsx b/src/components/AddressQRCode.tsx
index ebe2036..4e1a2ba 100644
--- a/src/components/AddressQRCode.tsx
+++ b/src/components/AddressQRCode.tsx
@@ -2,9 +2,12 @@ import React, { useState } from 'react';
 import QRCode from 'react-qr-code';
 import { TextP } from '../styles/App-styles';
 import { Box, Typography } from '@mui/material';
+import { useTranslation } from 'react-i18next';
 
 export const AddressQRCode = ({ targetAddress }) => {
   const [open, setOpen] = useState(false);
+  const { t } = useTranslation(['auth', 'core', 'group', 'question']);
+
   return (
     <Box
       sx={{
@@ -24,7 +27,13 @@ export const AddressQRCode = ({ targetAddress }) => {
           setOpen((prev) => !prev);
         }}
       >
-        {open ? 'Hide QR code' : 'See QR code'}
+        {open
+          ? t('core:action.hide_qr_code', {
+              postProcess: 'capitalizeFirstChar',
+            })
+          : t('core:action.see_qr_code', {
+              postProcess: 'capitalizeFirstChar',
+            })}
       </Typography>
 
       {open && (
@@ -55,7 +64,7 @@ export const AddressQRCode = ({ targetAddress }) => {
                 fontWeight: 500,
               }}
             >
-              Your address
+              {t('core:address_your', { postProcess: 'capitalizeFirstChar' })}
             </TextP>
             <QRCode
               value={targetAddress} // Your address here
diff --git a/src/i18n/i18n.ts b/src/i18n/i18n.ts
index ad672d6..2514b9f 100644
--- a/src/i18n/i18n.ts
+++ b/src/i18n/i18n.ts
@@ -1,5 +1,6 @@
 import i18n from 'i18next';
 import { initReactI18next } from 'react-i18next';
+import HttpBackend from 'i18next-http-backend';
 import LanguageDetector from 'i18next-browser-languagedetector';
 import {
   capitalizeAll,
@@ -15,7 +16,7 @@ export const supportedLanguages = {
   it: { name: 'Italiano', flag: '🇮🇹' },
   ru: { name: 'Русский', flag: '🇷🇺' },
   ja: { name: '日本語', flag: '🇯🇵' },
-  zh_CN: { name: '中文', flag: '🇨🇳' },
+  zh: { name: '中文', flag: '🇨🇳' },
 };
 
 // Load all JSON files under locales/**/*
@@ -37,6 +38,7 @@ for (const path in modules) {
 }
 
 i18n
+  .use(HttpBackend)
   .use(initReactI18next)
   .use(LanguageDetector)
   .use(capitalizeAll as any)
@@ -45,8 +47,11 @@ i18n
   .init({
     resources,
     fallbackLng: 'en',
-    lng: navigator.language,
+    lng: localStorage.getItem('i18nextLng') || 'en',
     supportedLngs: Object.keys(supportedLanguages),
+    backend: {
+      loadPath: '/locales/{{lng}}/{{ns}}.json',
+    },
     ns: ['auth', 'core', 'group', 'question', 'tutorial'],
     defaultNS: 'core',
     interpolation: { escapeValue: false },
diff --git a/src/i18n/locales/en/core.json b/src/i18n/locales/en/core.json
index b401cda..c742aca 100644
--- a/src/i18n/locales/en/core.json
+++ b/src/i18n/locales/en/core.json
@@ -42,6 +42,7 @@
     "get_qort": "get QORT",
     "get_qort_trade": "get QORT at Q-Trade",
     "hide": "hide",
+    "hide_qr_code": "hide QR code",
     "import": "import",
     "import_theme": "import theme",
     "invite": "invite",
@@ -77,6 +78,7 @@
     "search_apps": "search for apps",
     "search_groups": "search for groups",
     "search_chat_text": "search chat text",
+    "see_qr_code": "see QR code",
     "select_app_type": "select App Type",
     "select_category": "select Category",
     "select_name_app": "select Name/App",
@@ -96,6 +98,7 @@
     "update_app": "update your app",
     "vote": "vote"
   },
+  "address_your": "your address",
   "admin": "admin",
   "admin_other": "admins",
   "all": "all",
diff --git a/src/i18n/locales/fr/core.json b/src/i18n/locales/fr/core.json
index 9807c49..670184c 100644
--- a/src/i18n/locales/fr/core.json
+++ b/src/i18n/locales/fr/core.json
@@ -96,6 +96,7 @@
     "update_app": "Mettez à jour votre application",
     "vote": "voter"
   },
+  "address_your": "ton adress",
   "admin": "administrer",
   "admin_other": "administrateurs",
   "all": "tous",
@@ -384,4 +385,4 @@
   },
   "website": "site web",
   "welcome": "accueillir"
-}
\ No newline at end of file
+}
diff --git a/src/i18n/locales/it/auth.json b/src/i18n/locales/it/auth.json
index 9e2ceaa..b8c7f45 100644
--- a/src/i18n/locales/it/auth.json
+++ b/src/i18n/locales/it/auth.json
@@ -10,12 +10,12 @@
       "account": "Aggiungi account",
       "seed_phrase": "Aggiungi seme-frase"
     },
-    "authenticate": "autenticare",
+    "authenticate": "autenticazione",
     "block": "bloccare",
-    "block_all": "Blocca tutto",
-    "block_data": "Blocca i dati QDN",
-    "block_name": "Nome del blocco",
-    "block_txs": "Blocca TSX",
+    "block_all": "blocca tutto",
+    "block_data": "blocca i dati QDN",
+    "block_name": "nome del blocco",
+    "block_txs": "blocca TSX",
     "fetch_names": "Nomi di recupero",
     "copy_address": "Indirizzo di copia",
     "create_account": "creare un account",
diff --git a/src/i18n/locales/it/core.json b/src/i18n/locales/it/core.json
index ae79206..af7c03c 100644
--- a/src/i18n/locales/it/core.json
+++ b/src/i18n/locales/it/core.json
@@ -41,7 +41,8 @@
     "export": "esportare",
     "get_qort": "Ottieni Qort",
     "get_qort_trade": "Ottieni Qort a Q-Trade",
-    "hide": "nascondere",
+    "hide": "nascondi",
+    "hide_qr_code": "nascondi QR code",
     "import": "importare",
     "import_theme": "Tema di importazione",
     "invite": "invitare",
@@ -65,9 +66,9 @@
     "post": "inviare",
     "post_message": "Messaggio post",
     "publish": "pubblicare",
-    "publish_app": "Pubblica la tua app",
-    "publish_comment": "Pubblica un commento",
-    "register_name": "Nome del registro",
+    "publish_app": "pubblica la tua app",
+    "publish_comment": "pubblica un commento",
+    "register_name": "registra nome",
     "remove": "rimuovere",
     "remove_reaction": "rimuovere la reazione",
     "return_apps_dashboard": "Torna alla dashboard di app",
@@ -77,6 +78,7 @@
     "search_apps": "Cerca app",
     "search_groups": "Cerca gruppi",
     "search_chat_text": "Cerca il testo della chat",
+    "see_qr_code": "vedi QR code",
     "select_app_type": "Seleziona il tipo di app",
     "select_category": "Seleziona categoria",
     "select_name_app": "Seleziona nome/app",
@@ -96,6 +98,7 @@
     "update_app": "Aggiorna la tua app",
     "vote": "votare"
   },
+  "address_your": "il tuo indirizzo",
   "admin": "amministratore",
   "admin_other": "amministratori",
   "all": "Tutto",