Hello, I have some issues with a 2GB micro SD card. I got the card from a friend who said that it was asking for a password when plugged into his phone. I tried it on my phone (android) and it just gets stuck and i have to do a reboot. I plugged it into my win7 system with a SD adapter, but nothing happens! The card is not showing up nor do i get any error message. Its just as if the card slot is empty. Now i tried the same adapter on my laptop with another SD card and it works like a charm. So, can anyone help me with my defective SD card ?