Problems with SD card
First, I think there should be an option when plug a USB from computer to have a 'Charge Only' mode, like HTC phones. Most of the time when I plug a USB in I just want to charge, not transfer files.
But the real problem is it always defaults USB mass storage - and everytime it does that my phone cannot read SD Card until I select some other option like MTP. However once I have de-selected it from USB mass storage, there are still problems of my phone reading the SD Card, it could one of the following:
1) the SD card is not detected at all, even in Files or ES File Explorer etc. Another indicator is in Settings-Storage it doesn't show an SD Card is detected
2) the SD card is detected it but takes a long time, maybe 5 mins or so for it to index all my files - as shown in the fact that it takes approx 5 mins for my images to show in Gallery, and 5 mins or so for all my music to show in JetAudio
My SD card is fairly large at 32GB but I'm not having problems on my other phones