How do I change permissions on my SD Card?
I have a Sandisk micro sd with the adapter. I use this SD for my GoPro, and I have for a while. Today, though, when I wanted to delete some pictures from the card, it didn't let me. I checked and the permissions said that I can read only. This has never happened before, and I didn't change anything to provoke it. It's formated to FAT32, so it should be writable by mac. I tried to reformat it, and erase it using disk utility by all the options are greyed out. In this state, it is still readable and writable by my GoPro, though. I have tried inserting it many times, and once, it did let me write. I formated it to Mac OS Extended, and it worked. When I put it into my GoPro, it didn't read the card though, and it displayed an error message. I used the camera to format the card, and it worked. When I put it back into my mac, it didn't let me write again, and it turns out to be reformated to FAT32. I really don't know what else to do at this point, so I am welcoming any suggestions.
Thanks.
OS X Mavericks (10.9.2)