Thanks for sharing. apart from firmware, some hardware problem may cause SD card failed to be detected. As for me, I once dirted my external card I tried again and again, but it didn't be found by my phone successfully. At last, I managed to clean my SD card and solved my problem. So there's necessity to consider both aspects.
This post was last modified: 19-01-2016, 05:06 AM by bernalrichard.