I have a sandisk ultra 32gb Micro SD card that is not working. When i put it in any of my Android phone or laptop, it doesn't read at all. It was fine one day, but when I woke up the next morning, it just stopped. How can I fix this or at least get all of my stuff of of it?Someone suggested Mini tools app, but I don't see how it will help me as no further instructions were given and I don't know how to use the app. Thanks in advance!