To reset your wallet first tap on the rightmost icon on your navigation tab bar to go to Settings. There, tap on Reset Wallet and you will be asked if you want to continue. Please bear in mind that resetting your wallet will cause the app to "forget" it so if you want to access it in the future you should first back up your 12-word mnemonic required to Restore it. Tapping on "I understand it" will first ask you for your PIN number. Providing the correct PIN will finally reset your wallet and take you to the Wallet Creation Screen where you can create or restore a wallet.

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