diff --git a/src/services/service.ts b/src/services/service.ts
index 1e6f989..b1faee9 100755
--- a/src/services/service.ts
+++ b/src/services/service.ts
@@ -425,9 +425,14 @@ export default class Services {
 
   async saveDeviceInDatabase(device: any): Promise<void> {
     const db = await Database.getInstance();
+    const walletStore = 'wallet';
     try {
+      const prevDevice = await this.getDeviceFromDatabase();
+      if (prevDevice) {
+        await db.deleteObject(walletStore, "1");
+      }
       await db.addObject({
-        storeName: 'wallet',
+        storeName: walletStore,
         object: { pre_id: '1', device },
         key: null,
       });
@@ -438,8 +443,9 @@ export default class Services {
 
   async getDeviceFromDatabase(): Promise<string | null> {
     const db = await Database.getInstance();
+    const walletStore = 'wallet';
     try {
-      const dbRes = await db.getObject('wallet', '1');
+      const dbRes = await db.getObject(walletStore, '1');
       if (dbRes) {
         const wallet = dbRes['device'];
         return wallet;