After completing the software update for my Samsung Galaxy S4 in October 2014, my phone now states it has SD card problems (even if card is removed). The phone will also go and turn itself on and off continuously for an hour plus. I have done a factory reset 4 times and no improvements. I have taken the phone to KOODO kiosk to get some assistance and they did the same. Anybody else have a solution or experiencing this same issue?