I have a Samsung Galaxy S6 that has been behaving strangely in the past few days. To begin with it was shutting down completely without any warning. I could be browsing through my apps and it would suddenly shut down. This happened several times during the day and ONLY by holding the volume down and power button at the same time for about 7 seconds would it start up again. Each time it started up I would get a quick glimpse of a message stating 'Unable to download media message. Please try again'. I am unaware of any media message I have tried to download recently. The intermittent shutting down appears to have stopped for now, however, yesterday I received three consecutive messages, all stating the same thing, as a CALENDAR NOTIFICATION! I recognised the message as a scam from one pretending to be this 'Chuck Feeney' and you have covered in another topic: Beware of "The Charles F. Feeney and Atlantic Philanthropies Foundation" Email Scams What I can't understand is, how am I receiving this message as a CALENDAR NOTIFICATION? Not as a message or email but as an appointment alert! There is a strong possibility that these recent events coincide with a very recent update to my Android's software. Is there a likelihood that my phone has been compromised? I know I can do a factory reset but when I see all the information I have on my phone, including all the apps And passwords I use, I'm extremely reticent to have to reinstall everything. HELP!