You should read the first post and you will discover that the problem with sdcard is a known bug, and also you will find that wedgess wrote how to fix it temporaly ;)
Sent from my R800i using xda premium
I am not sure how the play's sd card...
The first and most important thing is to be sure that Flashtool recognizes your phone
2.Connect the phone with the computer via USB cable.
3.Wait till flashtool shows that your device is recognized. You will see your ph...