How I can use SD card as internal memory?
If you buy a brand new Sdcard which you did not use or plug into another device, and insert it into your phone, you should get a notification that says something like this : &quot;Use Sdcard as internal storage&quot; . You can click that notification and accept it. It should now treat your Sdcard as as internal storage. Make sure that you do not remove that Sdcard after that.
Check this website for more information :
https://www.nextpit.com/how-to-format-microsd-cards-as-internal-storage