Hi, i have a GB Apacer SD card in my galaxy s4 mini. Now all of a sudden (I had this phone for a few months now - and no problem) my phone doesn't show the existence of my SD card- even though it is there. I tried to restart my phone, re-insert the card and connecting the phone to a PC- luck. I only backed up half of the stuff that's on my card so I'm not very happy. Can someone help me to make my SD visible again?