How to Fix iMac Not Reading SD Card [4 GB Sony SD Card]

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Brithny· Answered on Jan 04, 2024

Suppose your iMac not reading a Sony SD card; don't worry. So many possible causes can lead to the Sony SD card not being recognized on your iMac.

For example, a broken Sony SD card or damaged SD card reader, an SD card that is not mounted correctly or unmounted, or is infected with a virus or malware, and the file system of the SD card is not compatible with macOS.

To fix the SD card not showing up on a Mac, you should first check the connection issues to make sure your Sony SD card and the SD card reader are not broken or damaged. Then, you can run Mac First Aid to repair the Sony SD card. If this method not working, consider formatting the Sony SD card.

Follow the steps below to run First Aid in Disk Utility to repair the problematic SD card:

Step 1. Open 'Disk Utility' on your iMac, and select the Sony SD card in the device list.

Step 2. Click 'First Aid' on the top menu, and click 'Run'.

Step 3. Wait for the repair process to finish. Then, check if the Sony SD card can work normally.

If the Sony SD card is still not recognized on your iMac, use the 'Erase' button in Disk Utility to format it. However, formatting an SD card will erase data on it. So, before you format the problematic SD card, use EaseUS Data Recovery Wizard for Mac Pro to recover data on the SD card. Check out the following steps:

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