The SIM card app from my new carrier just took my phone out of sleep, in the middle of the night, and planted an offer dialog (with two big buttons: ACCEPT/CANCEL), right thru my lock screen, quite dimly. It wouldn't go back to sleep before I hit the CANCEL button. This also happened on my daughter's iPhone, and ended up draining her battery until the morning. Hadn't I noticed that, I could end up buying some service I didn't want, by accidentally touching the ACCEPT button. I digged deeper into that and realized that the SIM Card app has all imaginable Android privileges. How come something like that happens? There's no way to disable the app (disable button in app mgmt is grayed out). The carrier is VIVO (Brazil). Any advice is welcome.