Tap on the Check Deposit icon on the bottom of the app screen. Choose the account you would like to deposit the check To. Enter the Amount of the check. Place your check against a flat background (for best results, use a dark background, verify the camera is in focus, and make sure you have sufficient lighting), tap on the camera icon next to Front to open your phone or tablet camera, then take a picture of the front of the check. Tap the camera icon next to Back to open your phone or tablet camera again, then take a picture of the back of the check. Tap the Deposit button to complete your mobile deposit. Tap on the History tab at the top of the screen to verify your request was sent and to see the status of your deposit.
You can also view these steps in the attached Mobile check deposit video.