alcatel one touch tablet won't read sd card

Solution
Well you can't just move apps to a card. Some other things are needed for that to work. Also, if the card was used in any other devices, or the files on it put on the card through other devices, the tablet may not be able to read it. Especially if apps were placed on it from another device. Here is the correct way to be able to run apps from a card.

First, you need to be using a tablet that is running at least Android "Marshmallow" (or newer) or be able to upgrade to it. Second, you will need the instructions I am including below. And third, you need a phone that has not been restricted by the manufacturer from making this change. Which does happen.

NOTE: If any of the steps are missing on your tablet, or they don't work for you, then...
Well you can't just move apps to a card. Some other things are needed for that to work. Also, if the card was used in any other devices, or the files on it put on the card through other devices, the tablet may not be able to read it. Especially if apps were placed on it from another device. Here is the correct way to be able to run apps from a card.

First, you need to be using a tablet that is running at least Android "Marshmallow" (or newer) or be able to upgrade to it. Second, you will need the instructions I am including below. And third, you need a phone that has not been restricted by the manufacturer from making this change. Which does happen.

NOTE: If any of the steps are missing on your tablet, or they don't work for you, then you have a tablet that either has an older Android version or has been restricted by the manufacturer.


How to turn the "External" SD card into "Internal" storage on "Marshmallow" a.k.a. 6.0.

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 tablet.

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


How to turn the "External" SD card into "Internal" storage on "Nougat" a.k.a. 7.0.

IMPORTANT NOTE: Be sure you start with a blank SD card. When the card is converted to "Internal" storage, it will be formatted (wiped) and encoded (making the cards data only readable by that device), so anything on it prior would be gone.

1. Go to "Settings", and then select "Storage & USB".
2. At the bottom of the list you should see the SD card's details, including the option to format it and make it "Internal" storage.
3. Once this is done, reboot the device and you can start running things from the card.

If you don't reboot the tablet, some things may not work correctly, so make sure you do the reboot.

 
Solution