1. Restart the device: Press and hold the Power key > Restart > Again Restart
2. Remove memory card and check: A). Before removing the memory card, first, unmount it for safe removal. On the Home screen, tap Apps > Settings > Device maintenance > Storage > More option > Storage settings > SD card > Unmount. B). Pull out the tray gently from the tray slot. C). Remove the memory card. D). Insert the tray back into the tray slot.
3. Check device in safe mode: Press and hold the Power key, when Power off icon appears > Press and hold the power off icon. Exit safe mode: Hold the power button and select restart on the screen.
4. Reset the device: Kindly create data backup of your device via SMART switch mobile application. Settings>>General Management>>Reset.
If issue still persist, kindly register your concern in Samsung members app (Samsung Member > Get help > send feedback > Ask question/Error report)
