Many devices have microSD card slots with artificially limited specifications or capabilities. In some of these devices, users have successfully worked around the artificial limitations.

Devices with microSDHC card slots are usually only officially rated for cards up to 32GB in size. However, this is often taken from the microSDHC specification, and not the actual capabilities of the hardware. On some models, users have achieved success with larger SD cards.

When an SD card is inserted into an Android phone, a notification or dialogue will appear to format the card. Kyocera's Settings app only exposes the ability to format the card as portable, or external storage. Portable storage can only be used for photos, videos, and other files, and is readable by other devices.

However, Android has supported using an SD card as “adoptable storage” since version 6.0 Marshmallow¹. Formatting a card as adoptable storage allows the user to store and run apps from the SD card. On Kyocera devices, this option is hidden.

Adoptable storage must be encrypted; as such, it is unreadable from any other device, including a computer. System apps, as well as user-systemized apps, cannot be moved onto the SD card.

This has only been tested on the DIGNO 3 and 4 at this time.

On devices without the adoptable storage option exposed:

1. Insert an unformatted (or incorrectly formatted) SD card into the phone.
   
   
2. Open the Android settings menu. This is different from the default Kyocera settings app.
   
   
3. Navigate to `Storage > SD card`. Format the card as “Internal Storage.”
   
   
4. The device will prompt you to move apps from the device's internal storage to the new SD card's “internal” storage.
   
   
5. (Optional) App developers decide whether or not apps can be installed on adoptable storage. This can be bypassed by enabling “Force allow apps on external storage” in the developer settings, and moving the apps individually via the app list in `Apps & notifications > See all > App of your choice > Storage & cache > Storage used`.

Consider reading the known issues section below for troubleshooting.

LINK TO SPLIT GUIDE

When an app is installed to the SD card the default cursor will not work on it. This can mitigated by utilizing a third party cursor such as C9.

There seems to be an issue with using the SD Card that can occasionally cause bootlooping. It is unknown what causes it at this time. It is recommended to reach out for assistance on our Discord/Matrix.