Use SD card as internal storage Android

SD card.txt

First you need to find the disk 
We now need to enter in a command to show the attached disks, so enter in this command:

`sm list-disks`

you can type sm on a adb shell to know more

NOTE: it onlu shows the SD card

Here is the command to format the entire drive as Internal Storage:
`sm partition disk:8,0 private`
(note I am using 8,0 as that was my disk ID, your might be different)

Here is the command to format 50% of your USB drive as Internal Storage
`sm partition disk:8,0 mixed 50`

Now that we have the package name, we now need to find the volume name of our USB drive. To do that, enter in this command:
`mount | grep expand`

this gives you the UUID that you need to move to sdcard

Now that we have the volume ID, the command to move your package is
```
pm move-package <package-name> [ internal| UUID]
```

REF:https://www.techdoctoruk.com/tutorials/expand-internal-storage-on-4k-firestick-with-a-usb-drive/