I had been using my micro SD card with my Samsung s5 for about 4 months when I traveled abroad and inserted a local SIM card for 3 months. Now that I am home I reinserted my original SIM card and have noticed that the phone isn't recognizing the micro SD card. When I check the Storage settings it says, "Insert SD card." I have tried taking it out and reinserting it a few times but it hasn't helped. There are a lot of files on there that I'd like to access so I'd rather not reformat the card. How can I fix this problem?