Found it, because my external drive is ntfs format. so android tv can't write it.Android TV only supports drives with FAT formats.
Not strictly true as other apps can!https://support.google.com/androidtv/answer/6299083?hl=en
Found it, because my external drive is ntfs format. so android tv can't write it.
Not strictly true as other apps can!
Have you tried with FAT to see if it makes a difference to ADM?