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Apple Computing Products:
macOS - Operating System
Micro SD Card shows read only and all format/erase options are greyed out
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<blockquote data-quote="dingdingdang" data-source="post: 1717089" data-attributes="member: 377677"><p>I'm using Yosemite on a mid-2014 MacBook Pro. I just got a 128GB Lexar Micro SD card and used on my Samsung Note 4 phone. I transferred the files to my Mac, ever since, the card becomes 'read-ogly', I can't write on or delete files, my phone can't mount the card anymore. I still can see it's in ExFAT format. And in Disk Utility, all options are grayed out so I can't reformat the card.</p><p>I tried the sudo diskutil command in terminal, it says can't do it.</p><p>I also tried the format on a Windows machine, it says not permitted.</p><p>And oh, these small cards don't have the lock flip mechanism on it.</p><p>What am I missing here? </p><p>Please help.</p><p>Thank you</p></blockquote><p></p>
[QUOTE="dingdingdang, post: 1717089, member: 377677"] I'm using Yosemite on a mid-2014 MacBook Pro. I just got a 128GB Lexar Micro SD card and used on my Samsung Note 4 phone. I transferred the files to my Mac, ever since, the card becomes 'read-ogly', I can't write on or delete files, my phone can't mount the card anymore. I still can see it's in ExFAT format. And in Disk Utility, all options are grayed out so I can't reformat the card. I tried the sudo diskutil command in terminal, it says can't do it. I also tried the format on a Windows machine, it says not permitted. And oh, these small cards don't have the lock flip mechanism on it. What am I missing here? Please help. Thank you [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Micro SD Card shows read only and all format/erase options are greyed out
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