How do I move apps from device to SD card and set default for new apps to SD card on a LG LEON device?

Solution
It will depend on two things. One, you will need to be running, or able to upgrade to, Android "Marshmallow". Two, you will need to have a device that the manufacturer has not restricted this option on. Yes, they actually do that.


How to turn external SD card into internal storage on "Marshmallow".

NOTE: Please be sure you start with a blank SD card. It needs to be blank because when the card is converted to "Internal" storage, it will be formatted (wiped) and encoded (making the cards data only readable by that device).

1. Go to device “Settings”, then select “Storage”.
2. Select your "SD Card", then tap the “three-dot menu“ (top-right), now select “Settings” from in there.
3. Now select “Format as internal”, and then “Erase &...
It will depend on two things. One, you will need to be running, or able to upgrade to, Android "Marshmallow". Two, you will need to have a device that the manufacturer has not restricted this option on. Yes, they actually do that.


How to turn external SD card into internal storage on "Marshmallow".

NOTE: Please be sure you start with a blank SD card. It needs to be blank because when the card is converted to "Internal" storage, it will be formatted (wiped) and encoded (making the cards data only readable by that device).

1. Go to device “Settings”, then select “Storage”.
2. Select your "SD Card", then tap the “three-dot menu“ (top-right), now select “Settings” from in there.
3. Now select “Format as internal”, and then “Erase & Format”.
4. Your SD Card will now be formatted as internal storage.
5. Reboot your phone.

NOTE: If you don't reboot the phone, many things may not work correctly, so make sure you do.

 
Solution