Updated in the last 15 minutes
To confirm your wallet's Back Up first tap on the rightmost icon on your navigation tab bar to go to Settings. There, tap on Backup Wallet. After confirming your PIN you will be taken to a screen with your 12-word mnemonic for you to back up somewhere safe (we usually write it down on a piece of paper). Once you have done that, tap on the "I've written it down" button and on the next screen you will be asked to confirm those words by tapping on each of them in the correct order. With the proper order of words, tap on confirm seed and you will be warned of your successful confirmation and taken to the main screen.