Default storage setting SD card YU yunique plus

Solution
Well, if the phone is still running on the original version of Android it came with (Lollipop), then you would not be able to run apps from the SD card. However, if you have upgraded to, or can upgrade to, Android "Marshmallow", then you may be able to get this to work. I say may because there is still the possibility that the manufacturer has restricted that option. They do that sometimes.


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”...
Well, if the phone is still running on the original version of Android it came with (Lollipop), then you would not be able to run apps from the SD card. However, if you have upgraded to, or can upgrade to, Android "Marshmallow", then you may be able to get this to work. I say may because there is still the possibility that the manufacturer has restricted that option. They do that sometimes.


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