In this situation, you must use the Secret Code you saved during account creation.
On the new device, select "Import Wallet" (or "Recover Account").
Enter your Secret Code.
The system will restore your wallet and prompt you to create a new Passkey for this device.
Note: If you lose your device AND your Secret Code, we cannot assist in asset recovery due to the decentralized nature of our App-rollup (the exchange does not store your code).