You need to set up a MI account then register your phone through the website or the App. I would just get back in touch with Amazon they sold it ,it's such a great phone you most probably won't have any problems I'm sorry I don't know the answer since mine was rebooting all the time, changed it for a second one and happened the same so ended up asking for the refund####[['phone', 'Overall#Overall', 'positive'], ['phone', 'Overall#Overall', 'positive'], ['rebooting', 'Performance#General', 'negative']]