How to set default storage to external SD card in lenovo a7000

Solution
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 on "Marshmallow" a.k.a. 6.0.

NOTE: Please be sure you start with a blank SD card. It needs to be...
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 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 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 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 phone, some things may not work correctly, so make sure you do the reboot.

 
Solution
Sep 26, 2018
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@webworkings

what do you mean by "making the cards data only readable by that device" ? does it mean that i wont be able to use my sd card if i transfer them to other phone? and would my apps from internal will be transferred to the card or will be erased too?



 
That is exactly what it means. You can't read a SD card that has been made "Internal" storage by any device other than the one it was done on. The card and the data on it becomes encoded. So no other device can read it and, on top of that, were you to reset the device while that card is set as "Internal" storage, no matter if you remove the card during the reset or not, the device itself will no longer be able to read the data on the card.

So be sure you want it that way before making it "Internal" storage. There are risks.