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Apple Computing Products:
macOS - Operating System
Can't Erase Micro-SD Card - Problem Resolved
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<blockquote data-quote="krs" data-source="post: 1844766" data-attributes="member: 67742"><p>I ran into this problem yesterday and thought I would post the issue and resolution for anybody else who may run into this problem.</p><p></p><p>Had a SanDisk Micro-SD card (also called TF card) that I had used in a camera and that I wanted to erase and reformat to ExFat.</p><p></p><p>I plugged the TF card into an SD adapter so that I could plug the card with adapter into the SD slot on my Mini.</p><p>Card showed up on my desktop - I launched Disk Utility, selected the card and erased it.</p><p>Got the message "Erase process has failed"</p><p>[ATTACH=full]31197[/ATTACH]</p><p></p><p>Couldn't modify partition map? Hmmm... maybe I couldn't use ExFat for whatever reason, so I tried to format to MS-DOS</p><p>Same problem.</p><p></p><p>Was the card defective? Unlikely since there were images on the card that I could open on the Mac with no problems.</p><p></p><p>So then I decided to put the card back into the camera and try to use the camera to reformat it (even though formatting that way would not be what I wanted, but I could at least delete the images on the card and maybe then format it)</p><p>I put the card back into the camera (with the adapter since the camera took a full size SD card) and then my 10+ year old camera came back with the message "Card Locked"</p><p></p><p>Sure enough, that was the problem - a 10+ year old camera could give me that feedback, but my much more recent macOS could not. it just said:</p><p></p><p>which gave me no hint what I should look at to try to fix the issue.</p><p></p><p>And what didn't help at all either is that SanDisk on their Micro-SD to SD Adapters brilliantly cover the 'Lock" and arrow indication on the adapter with the SanDisk label.</p><p>[ATTACH=full]31198[/ATTACH]</p><p></p><p>I slid the lock up to the 'unlock' position and erase worked just fine.</p></blockquote><p></p>
[QUOTE="krs, post: 1844766, member: 67742"] I ran into this problem yesterday and thought I would post the issue and resolution for anybody else who may run into this problem. Had a SanDisk Micro-SD card (also called TF card) that I had used in a camera and that I wanted to erase and reformat to ExFat. I plugged the TF card into an SD adapter so that I could plug the card with adapter into the SD slot on my Mini. Card showed up on my desktop - I launched Disk Utility, selected the card and erased it. Got the message "Erase process has failed" [ATTACH=FULL]31197[/ATTACH] Couldn't modify partition map? Hmmm... maybe I couldn't use ExFat for whatever reason, so I tried to format to MS-DOS Same problem. Was the card defective? Unlikely since there were images on the card that I could open on the Mac with no problems. So then I decided to put the card back into the camera and try to use the camera to reformat it (even though formatting that way would not be what I wanted, but I could at least delete the images on the card and maybe then format it) I put the card back into the camera (with the adapter since the camera took a full size SD card) and then my 10+ year old camera came back with the message "Card Locked" Sure enough, that was the problem - a 10+ year old camera could give me that feedback, but my much more recent macOS could not. it just said: which gave me no hint what I should look at to try to fix the issue. And what didn't help at all either is that SanDisk on their Micro-SD to SD Adapters brilliantly cover the 'Lock" and arrow indication on the adapter with the SanDisk label. [ATTACH=FULL]31198[/ATTACH] I slid the lock up to the 'unlock' position and erase worked just fine. [/QUOTE]
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Apple Computing Products:
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Can't Erase Micro-SD Card - Problem Resolved
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