Stopped working on MacOS Big Sur

Portable SSD Portable, Extreme, and Extreme Pro SSD
1

It keeps ejecting itself and I keep getting messages that it hasn’t been ejected in a proper fashion. It’ll work for 5-10 minutes then disconnect.

I just moved from Intel MBPro to M1 MacMini w/ Big Sur. Not sure if it’s the Mini or Big Sur or if my drive is at fault.

Happily, all this data is in the cloud, so I can afford to lose the drive. But I need it as a case-sensitive volume.

Anyone else have this problem or can offer suggestions?

1 Like
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I have the same problem I think,
I recently purchased a SanDisk Extreme PRO SSD 1Tb (2000MB/s)
I’m in MacOS Big Sur , When my macbook pro becomes in sleep mode.
The SanDisk Extreme PRO stops working until I eject and then reconnect SSD to computer
This is very annoying and sometimes I lose what I’m working on

3

Same issue

4

The solution for me was to upgrade to the latest version of Big Sur

5

yeah its always best to keep your devices updated (Y)

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Yes. I can only recommend that as well. having a regular update helps to keep your device running :slight_smile:

7

I am having the same issue - was there any solution besides the update for anyone here? I am on latest mac OS version so this did not fix it for me.

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If you’re still having problems downloading macOS Big Sur, try to find the partially-downloaded macOS 11 files and a file named ‘Install macOS 11’ on your hard drive. Delete them, then reboot your Mac and try to download macOS Big Sur again...