Originally Posted by Kneller
My Arc has all of a sudden stopped recognising my memory card, and simply states "SD Card unmounted or not present". I've tried going into "Settings>Storage>Mount SD card", but that option is greyed out so I can't select that.
I've tried several memory cards in the phone and all have the same problem, so it's obviously a problem with the phone's card reader.
I am having exactly the same problem, although mine is an Xperia Ray.
Did you have any luck solving your problem?
It seems that sony phone have issues with card readers...
My phone is not under warranty either, so I am thinking of just buying another Ray as it is not too expensive and to get my fixed it would be almost the same price, not to mention the bother to send it away to be fixed.