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My sd card only seems to be recognised after I turn it on but then it disappears I then turn off my phone and it works again and I have to turn off every time... I have tryed with another on but same thing happens..
Can any one help me
just to clear things out, the phone doesn't recognize the SD card unless you restart the phone?
if that's the case, and you've tested different SD cards, it'll be wise to repair the phone with XC
Alternatives on How to backup Xperias
http://talk.sonymobile.com/thread/36355