macbook pro 2021 error 119930874 mounting external HD

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macbook pro 2021 error 119930874 mounting external HD

Hello, macbookpro from 2021 is being slow to mount external HD (Seagate backup plus drive 2TB), and got this error when I tried to mount it from Disc utilities:

error de com.apple.DiskManagement.disenter -119930874

It mounts after a few minutes, but I'm curious if this can be fixed.

Seagate has a USB-A and I'm using a USB A to USB-C adaptor (attached pic) to connect it to the Thunderbolt in the macbook pro.

Adaptor specs:

Version: 3.1 Gen 1

Connection 1: USB C male,

Connection 2: USB A female,

max. speed: 5 Gb/s.

Wondering if this is the problem and how could I fix it?

Cheers!

Ely

MacBook Pro 14″, macOS 12.6

Posted on Dec 4, 2022 12:56 PM

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Answer 1

Chris_V89

Community Specialist

Dec 6, 2022 02:58 PM in response to ely247

Hey there ely247,

Thanks for reaching out to the Apple Support Communities. For the best steps that can help with troubleshooting issues with your USB devices not working as expected, check out this link here: If a USB device doesn’t work with Mac - Apple Support

If still having issues after going through the steps above, try testing the issue in safe mode.

This can help to determine if the issue may be caused by some software that has loaded as your MacBook starts up. For help with booting into safe mode, and what to do if the issue does or doesn't occur in safe mode, check out this link here: How to use safe mode on your Mac - Apple Support

Apple silicon

1. Shut down your Mac.

2. Turn on your Mac and continue to press and hold the power button until you see the startup options window.

3. Select your startup disk, then press and hold the Shift key while clicking “Continue in Safe Mode.”

4. Log in to your Mac. You might be asked to log in again.

Keep us updated on the results.

Take care!

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macbook pro 2021 error 119930874 mounting external HD

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