1. The PIN code is the local password you entered when you first created or imported your wallet. You must remember your PIN code to use the functions such as private key export and transfer.
2. Losing your PIN code is equivalent to losing all Dalong Wallet wallets. You have to uninstall the Dalong Wallet app and re-import the private key, keystore or mnemonic to recover your wallet. Your PIN code is saved locally and Dalong Wallet cannot provide a PIN code recover service.