Hi all, My Galaxy S4 stopped reading my SD card, and somehow, most apps are crashing. Including the settings. I tried connecting it to Kies on Mac, but Kies says the device isn't responding. I also tried removing the battery, removing the SD card, and restarting a few times. I booted into Recovery mode and erased the cache as well. Nothing worked. Please help me as this is very frustrating. Update: I reset the phone but to no avail. I'm trying to download whatsapp as it is essential for me especially today since I have finals but still. Nothing.