After reviewing this, I used
termux-setup-storage on my phone and Andy Android emulator.
After running the above command, I am able to view root directory with
ls on Andy emulator but not on phone.
Android version 7.1.1
SoftBank locked the phone BIOS (or whatever it was) so I can’t root it.
Storage permissions are granted.
What else can I try to use
ls on root directory on my phone?