Hi, This accidentally posted in introductions. Sorry! I don't often need the phone-call facility, except for emergencies. I use the Galaxy as a PDA and for emails and sometimes Internet, and for walking routes/GPS, so I prefer to keep the phone turned off completely to avoid battery drain. Recently the phone has switched itself on at various times during the night and woken us with start-up noises and incoming Amazon emails etc. Please can someone tell me what might be causing this and how I can stop it. It does not seem possible to edit Samsung apps permissions. Dare I uninstall the Samsung apps?