I am having the exact same problem as issue number 1. I have tried 3 different memory cards now and they work stellar at first then just seem to give up. I'm worried this is a problem with the Xperia. I have a z3, and it seems to just corrupt the cards over time? Photos and videos both go corrupt. It's a hit and miss whether music tracks play when put on. A video file I transfer to the phone will play instantly, but not when I put them on SD Card. What's the deal?
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