How to fix SD card not readable by MacBook Pro?

By Katrina | Posted to Mac Data Recovery on February 13th, 2018 |

When inserting an SD card to MacBook Pro/MacBook Air/iMac, you just encountered the error message: "The disk you inserted was not readable by this computer"? Want to fix SD card not readable by MacBook Pro error without losing data? Now download iBoysoft Mac Data Recovery and let's get started.

SD cards are a type of memory card typically used in digital cameras, camcorders, MP3 players, phones and other portable devices. But sometimes when the SD card gets damaged and unreadable, you are not allowed to access the card on Mac. Here is a real case of an SD card not readable by MacBook Pro:

I have this issue when I insert my (SanDisk) micro SD card in MacBook Pro, an error message popped out: "The disk you inserted was not readable by this computer." With no option to "initialize" just "ignore" and "eject". I don't know if it makes any difference but it was last in my GoPro Hero 3 Black edition. Any help would be really appreciated!

Are you fed up with this problem? This article will show you how to fix MacBook Pro not reading SD card, and how to recover data with free Mac data recovery software.

Why is MacBook Pro not reading SD card?

To be honest, many reasons can caused MacBook Pro or MacBook Air not reading error. The main reason must be drive corruption. Have a look at some common scenarios:

  • >Corrupt SD card reader.
  • >Damaged USB port.
  • >Internal file system errors.
  • >Virus infection.
  • >Software bug.
  • >The disk is not formatted to a supported Mac format.
  • >macOS issues.
  • >Hardware problems.

According to the possible reasons, we will present you with a collection of verified troubleshooting solutions.

Note: Whenever you receive this error: "The disk you inserted was not readable by this computer" error, never click on "Initialize" button, as this action will erase all data saved on the card. More importantly, the repair process may write new data on the corrupted SD card, so it's strongly advised to recover lost data from the unreadable SD card at first.

Part 1: How to fix the SD card not readable by MacBook Pro error?

Solution 1: Connect your SD card to another device

You can connect your SD card to the camera, phone or another device. If the SD card works with the camera but won't read on your Mac computer, it's safe to assume the computer card reader has problems.

Solution 2: Check the USB port

If you have a computer with front and back USB ports, try connecting the reader to another USB port. Alternatively, you can use another device in that port to check to see if another device works.

Solution 3: Disconnect the SD card and restart you Mac computer

Choose the Apple menu > Restart. Or press and hold the power button and, when a dialog box appears, click the Restart or press R. Then reconnect the SD card to the USB port. Sometimes this resets the connection and allows your Mac computer to work properly again and read the SD card.

Solution 4: Check the drive format

The problem also happens if the drive you've inserted is not formatted or is formatted with a file system not supported by macOS. To check this issue, you can go to Applications > Utilities > Disk Utility. Click the Info button on the top and see the format of your SD card.

Solution 5: Repair the unreadable SD card in Disk Utility

Disk Utility is macOS's built-in tool that is able to check and verify minor errors on disks. You can try to fix the not readable SD card with it.

Step 1: Go to Applications/Utilities/Disk Utility.

Step 2: Select the SD card from the left side bar.

Step 3: Click First Aid.

Run First Aid to repair unreadable SD card

Solution 7: Fix SD card not readable error by reformatting

If First Aid failed to fix the error on MacBook Pro, you need to reformat the unreadable SD card so as to make it usable. But to avoid data loss, you'd better firstly recover data from the unreadable SD card with free SD card data recovery software for Mac, and then fix MacBook Pro not reading SD card error by reformatting.

Watch this short video tutorial to recover data from SD cards:

iBoysoft Mac Data Recovery is free Mac data recovery software that can recover data from unreadable SD cards on MacBook Pro, recover deleted files even emptied from Mac Trash, recover data from formatted, unmountable, unreadable, unmountable, unrecognized hard drives, external hard drives, USB drives, SD cards, memory cards and other storage devices on macOS Mojave 10.14/High Sierra 10.13/10.12 Sierra/10.11/10.10/10.9/10.8/10.7.

Step 1: Recover data from unreadable SD cards with iBoysoft Mac Data Recovery

1. Download, install and launch iBoysoft Mac Data Recovery on MacBook Pro.

Recover data from unreadable SD card on MacBook Pro

2. Select the unreadable SD card and click "Next" button to scan for all lost data.

Recover data from unreadable SD card on MacBook Pro

3. Preview the searching results, choose files you need, and click "Recover" to restore files.

Recover data from unreadable SD card on MacBook Pro

Step 2: Reformat the unreadable SD card on MacBook Pro

After data recovery completed, you can fix the unreadable SD card by reformatting.

1. Launch Disk Utility from Utilities.

2. Click on the unreadable SD card on the left part of the window.

3. Click the Erase button on the top of the Disk Utility window.

4. Complete the related information (name, format, scheme), then click Erase button.

Summary

This post focus on how to fix SD card not readable by MacBook Pro error as well as to recover data from unreadable SD cards. It is not a difficult problem and can easily be fixed by reformatting. However, if you care about data on the drive without any backups, you need to recover data from the unreadable SD card with iBoysoft Mac Data Recovery at first.

Katrina

Katrina is a data recovery expert @iBoysoft who loves to help readers solve various data recovery problems.

Scroll down for the next article Scroll down