I can’t open my files on my memory card even when I take it out, put it in, restart my phone and etc. I can’t even see the files on my computer. How can I solve this?
I would try another memory card just to make sure and then the general problems: Are you sure, the card is completely inserted? How big is the card, maybe your phone can´t deal with a 64gb card?
Try the memory card in other computer or from other phone with different data cable.
I hope the memory card has not gone kaput. :)
are they hidden?
go to "Start" then Run-->type cmd right click on it and choose run as administrator
if your memory card as G:
Enter this command: attrib -h -r -s /s /d g:*.*