How to recover corrupted SD card on Mac?

By Katrina | Posted to Mac Data Recovery Tips, updated on May 9th, 2020 |

Summary: Are you fed up with the corrupted SD card? Wondering how to recover lost data from corrupted SD card on Mac? This free SD card data recovery software will help you, just download it!

With faster speed and higher storage capacities, SD cards are universally used in camcorders, music players, android smartphones, tablets, digital cameras and other portable devices. However, SD cards are also prone to corruption in the same way that other storages are, resulting in loss of all stored photos, videos, and audio files.

File corruption can occur if you remove the SD card while it is reading or writing data. If you are using a macOS system, you can use Disk Utility to reformat the card when SD card is not working on your Mac. But the process will erase all data on the SD card. If that data is important but you didn't keep any backup. You have to recover lost data from corrupted SD card on Mac. That's why you are here.

Before you begin to recover lost data from corrupted SD card on Mac

The most important thing to be aware of is that you should stop using the SD card as soon as you find the card gets corrupted. That's because data on the SD card is so easy to be overwritten in this situation. Any operation will lead you to a permanent data loss situation. So, please avoid using the SD card when you realize there is a problem.

Fortunately, even when the SD card can't be read on your Mac, SD card not showing up on Mac, or it looks like there are no files on it, there is hope to fix/recover corrupted SD card on Mac.

How to recover corrupted SD cards on Mac?

As a professional and free SD card data recovery software for Mac, iBoysoft Data Recovery for Mac can recover lost data from corrupted SD cards, memory cards, USB flash drives, CF cards and other drives. All file formats supported including pictures, videos, documents, etc. Besides, it can recover lost data on those drives even if they are unreadable, unmountable, inaccessible, formatted or uninitialized. This program is compatible with macOS Catalina 10.15/Mojave 10.14/High Sierra 10.13/10.12 Sierra and Mac OS X 10.11/10.10/10.9/10.8/10.7.

Step 1: Download, install and launch iBoysoft Data Recovery for Mac on Mac.

recover lost data from corrupted SD card on Mac with iBoysoft Data Recovery for Mac

Step 2: Select the corrupted SD card and click "Scan" to search for files on the card.

Step 3: Preview the photos/videos in results and choose the needed files, click "Recover" to finish data recovery.

Common SD card problems and solutions

Apart from accidental deletion, there are some other common SD problems which will cause serious data loss, such as SD corruption. This issue can be caused by so many factors, such as connection issue, improper operation, corrupted driver, etc. The following part contains a list of three common SD card problems and fixes:

1. SD card corruption

A corrupted SD card has damaged data that prevents it from performing properly. If an SD card becomes corrupted, you may get some error messages from the computer system, which prevents you from accessing all photos stored on it. Additionally, you will find that most of the photos on your SD cards are missing. Last but not least, you may not add, delete, copy or save anything in your SD card. Such a stomach-churning and horrible moment. Relax! Let's see how to fix corrupted SD cards:

Solution 1: Run First Aid to repair the corrupted SD card

First Aid is a utility included with Disk Utility for checking and repairing file system errors. When you face with corrupted SD cards, you can use it to repair and fix some minor error on the card.

  1. Step 1: Open Disk Utility from your /Applications/Utilities folder.
  2. Step 2: Select the corrupted SD card in the left sidebar.
  3. Step 3: Select the "First Aid" tab. Click "Run".

Repair corrupted SD card via First Aid

Solution 2: Format the corrupted SD card on Mac

If Disk Utility tells you that it can't repair the disk, the last solution is to format the corrupted SD card on Mac. But this operation will erase all data stored on the card, please make sure you have backups or have recovered important files with iBoysoft Data Recovery for Mac.

How to format an SD card on your Mac?

2. SD card not readable/working

Sometimes, when you connect your SD card with your Mac, you can't open it. The system pops up a window saying: "the disk you inserted was not readable by this computer". Here is a real example from Cnet forum:

"My 4GB micro SD card is unreadable on my Samsung Galaxy S3, but there are lots of important files on this card. Connecting memory card to my Mac, it says memory card is not readable. Please help!"

the disk you inserted was not readable by this computer

Well, this issue can be easily fixed by formatting. But you may get shocked as their important files such as your precious photo are gone.

How to fix: This post will show you how to fix "The disk you inserted is not readable by this computer" error.

3. SD card not recognized/detected on Mac or in mobile phone

Picture this scene. You are a photographer who use your smartphone or digital camera to take pictures and videos, you go back home and try to transfer everything from the SD card to computer in order to backup or further editing. You insert the memory card to an adapter to your laptop, expecting to see the icon which represents SD card. However, the SD card does not show up in Finder or on the desktop. Thus you try again and end up with the same result.