Adoptable external storage provides support to designate your external microSD storage card as internal storage. Only HTC, Lenovo and the BlackBerry DTEK60 provide this Android Marshmallow only feature.
It’s worth noting that if you decide to format your microSD card for internal storage, it will format as EXT4* and encrypt it, so it will only be accessible on your device, as the SD card will no longer be visible.
Follow these simple steps to enable your microSD card for internal storage:
- Settings > Storage & USB
- Tap > SD card (this will under ‘Portable storage’)
- Tap > Menu (top right three vertical dots) > Settings
- You can choose to Eject, Format or Format on internal
- Choose > Format on internal
The microSD will be formatted to make it secure. After formatting, your SD card will only work on your device. It will also erase all data currently stored on the microSD card. To avoid losing any of your data, you should now consider backing it up.
- Tap > ERASE & FORMAT – depending on the type and size of card, formatting shouldn’t take long.
If you receive the following message while formatting:
“This SD card appears to be slow. You can continue, but apps moved to this location may stutter and data transfers may take a long time. Consider using a faster SD card for better performance.”
If this is you, then you might want to consider purchasing either a Class 10 or UHS-1 microSD with a minimum of 64GB of capacity or higher. Samsung EVO Plus microSD cards are fast at reading (80 MB/s) and writing (20 MB/s) and are rated as UHS-1 and come in 32GB, 64GB and 128GB. Note: The BlackBerry DTEK60 supports up to 2TB.
Once the formatting is complete you can move data to the new storage. Click > Move now (you will also be shown how much data will be moved to the SD card).
TIP: Below are URLs to free OSX, Windows and Linux software, which will test the flash memory of your microSD cards. Don’t forget to use the adaptors!
*EXT4 is the latest Linux filesystem which controls how data is stored and retrieved.