Someone seems to have asked this before but none seems to describe my exact problem. I bought an xperia play 2 days ago, which came with a 8gb sd card, and shortly afterwards I rooted the phone. However, I soon realised that 8gb is not enough space for the games that i wanted to play, and i just bought a 16gb kingston micro sd. So I plugged the sd card into the phone, but it refuses to mount. I went to settings>storage>mount sd card, and it just wouldnt mount. I checked that the new sd, like the old one, is fat32 but now I'm really stuck. Can someone please help me on how I will be able to mount and use the sd card for this phone? Thanks a lot.