1. AC Question's Avatar
    My phone had to be rebooted and now my camera doesn't work.
    It says "unknown SD card.
    I think I should reformat the card but I don't know how ?
    Please help ?
    ZTE Grand X Z777
    05-21-2016 04:12 PM
  2. chanchan05's Avatar
    I think you should buy a new one.
    05-21-2016 05:37 PM
  3. Rukbat's Avatar
    If you can't find a format choice in recovery, put the card into a USB adapter and format it in a computer. But, as chanchan05 said, it may be shot. It may also be counterfeit. SD cards are something you should NOT try to save money on by buying cheap ones.
    05-21-2016 07:11 PM

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