What to do if your phone doesn't allow you to format microSD as internal memoryįirst things first, adoptable storage lets you use microSD cards as internal storage on Android smartphones.

How to stop using MicroSD card as internal storage on Android.How to use MicroSD card as internal storage on Android.

Since the entire card is just 32GB, that's not a problem.Affiliate offer Samsung EVO Select microSD card There ARE limitations to the MS-DOS (FAT32) format, and without exploring special file utilities (none of which I've tried) 32GB is the maximum size for an MS-DOS (FAT32) volume. When the card is unlocked in the adapter, OS X 10.10 Yosemite Disk Utility permits me to view, erase, and reformat the microSD card, though I still need to use MS-DOS (FAT32) to remain compatible with my phones and cameras. The example illustrated below is a 32GB microSD card used in my Canon camera with an SD-size adapter.Īnd here is the info for the microSD card from my Android smartphone.Īs you can see, both cards are MS-DOS (FAT32) format, and total size of each is 32GB. Even if encrypted, you should still be able to ERASE the contents of the microSD card using Disk Utility. I've successfully used the same microSD cards interchangeably in both Canon cameras and Android (KitKat 4.4) phones to transfer files to and from my various Mac's running OS X 10.10 Yosemite without reformatting.Īndroid 4.4 KitKat (the one I'm using) unless encrypted, absolutely does NOT have some incompatible proprietary data format that is unrecognizable to Mac OS X 10.10 Yosemite for things like mp3 music, jpg photographs, and pdf files. The 'UNLOCK' position has the lock/unlock slider closest to the end of the card with the metal connector strips.Īll of my microSD cards came pre-formatted in MS-DOS (FAT32). Mtb_legend, Are you inserting your microSD card into an SD-size adapter for use with a card reader?Ĭheck to see that the 'LOCK' switch on the SD adapter card is unlocked.

How to format sd card android