Asad Ali
Very Senior Member
Too complicated for many users here. And if the device was formatted with Windows as FAT it still is incompatible with the amtm disk check.
Complicated probably but when you do it the way it's written here on the router, it uses Linux filesystem by default so no FAT is involved any where.
BTW the best and easiest way is to implement it within the firmware USB format page and add EXT as an option.