Can't format samsung 128 evo micro sd card

I'm having issues formatting a micro sd card a for a friend on my Mac. I've tried using Disk Utility, diskutil commands in terminal and SD Card Formatter. I tried using exFAT and still got the same error:

MacBook Pro 13", OS X 10.11

Posted on Jan 7, 2020 2:04 AM

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2 replies

Jan 7, 2020 7:49 AM in response to wnsdud

Is the card locked with a physical switch? Are you formatting at the correct level (device level is the correct level not volume level.). Any error messages?

Jan 7, 2020 8:06 AM in response to wnsdud

If the card is not write-locked, and if you’re reformatting the whole device, and you’ve closed all other apps and maybe rebooted to ensure that no apps are accessing the card, SD cards can and do fail, and there are also more than a few counterfeit SD cards around. And there are corroded and otherwise damaged cards around. If the card is not write-locked and not damaged and a recent acquisition, return it for exchange.

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Can't format samsung 128 evo micro sd card

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