I have an LG Marquee (Sprint) and the only sd card I can get to work is the 2gb card that came in the phone. When i try to use anything else it says its damaged or it will show that it is mounted but nothing will read or write to the card and the phone ends up freezing and i have to take the battety out to restart the phone. Sometimes it will seem to be working just fine but then ends up freezing and again i have to remove the battery. I dont have any of these problems with the card that came with the phone. Someone please help!!