Mine does it mostly while actively using it...one just popped up as I'm typing this... ... View more

So if I were to try this without deleting anything off the sd card, wouldn't I need to unmount the sd card before turning the phone off? & should I take the card out before I turn the phone off or after it's off?  ... View more

So is it still working good & the error message still not popping up anymore? ... View more