I bought this card for my android based phone, soon I started getting messages that my card had been removed and or it was damaged, Tried it in my tablet same thing, and this was not the first card of this brand that I had bought that experienced this problem. Went to several online forums to see what the solution is; then someone hit upon it, it just might be a problem with this brand of cards.I bought a PNY brand micro SD card and had no problem whatsoever.