How to Fix ‘Samsung SD Card Not Readable by This Device’ Error on Mac

[Kikabatica]

Basic Troubleshooting Steps
First, try reseating the SD card or using a different card reader/adapter. If the card remains undetectable, open Disk Utility (Applications > Utilities), select the card, and run First Aid to repair potential filesystem errors. For cards showing up but not mounting, reformat as exFAT (for cross-platform use) via the Erase function after recovering any important data from another computer.

Advanced Options
If the card appears damaged or shows zero capacity, use software like iBoysoft  before attempting repairs. For physically corrupted cards showing I/O errors, professional services may be required. To prevent future issues, always safely eject cards and avoid removing them during write operations. Consider using high-endurance cards from reputable brands for frequent usage.