ZTE z719dl SanDisk sd not supported, why?

Jun 16, 2018
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Bought an SD card for my husband's phone, it is failing to convert to internal storage and says not supported? What do I do? It is straight talk prepaid.
 
Solution
Well if you are trying to use the option that shows up when you first insert a new SD card, and asks you if you want it to be "Internal", well that won't actually make the card "Internal" storage. It should, considering the title, but it doesn't. You have to go through some steps to make a SD card internal storage. Which I am including below. That said, be forewarned. It doesn't work on all devices. It should work on any device with Android 6.0 ("Marshmallow") or newer, but many manufacturers have blocked the option on their devices.

First, you need to be using a phone 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...
Well if you are trying to use the option that shows up when you first insert a new SD card, and asks you if you want it to be "Internal", well that won't actually make the card "Internal" storage. It should, considering the title, but it doesn't. You have to go through some steps to make a SD card internal storage. Which I am including below. That said, be forewarned. It doesn't work on all devices. It should work on any device with Android 6.0 ("Marshmallow") or newer, but many manufacturers have blocked the option on their devices.

First, you need to be using a phone 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 phone, or they don't work for you, then you have a phone that either has an older Android version or has been restricted by the manufacturer. If that is the case, you will not be able to use this information.


How to turn the "External" SD card into "Internal" storage - Option A

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.


How to turn the "External" SD card into "Internal" storage - Option B

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 phone, some things may not work correctly, so make sure you do the reboot.

 
Solution
Jun 16, 2018
2
0
10
We got it figured out with looking at previous answers, and switching cards from his tablet to the phone, and turning the phone off before inserting the card. Thank you so much.