If you have to change your smartphone while participating in a study, simply download Ethica app on your new phone and log in with your existing credentials. This way, you will continue providing data for your study using your new phone, and none of the data collected from your previous phone will be affected in any form. Do not create a new account as this will mark you as a different person.
Some studies require additional settings on the phone. If you believe your study will need more configuration, please contact the research staff or one of the Ethica members for further assistance.