Samsung Galaxy s7 on Sprint Network. Wife kept on receiving message about update. She kept on putting it off. Finally, she allowed it to update. After installing update, phone crashed. New SIM card, factory reset, phone does not work. Cannot receive calls. Cannot make calls. So, what do we do now? And, now my phone keeps on asking about doing the update. I keep putting it off, afraid the same will happen. This is not an sd card issue. While phone turns on, downloads things, can receive emails, it has no data or phone.