I plug my dual usb drive into my telephone and it seems to be recognized, but I immediatly see a message that the drive has been unmounted and it can be removed, if I try and remount the drive it does not work. In windows I can see the drive and it works.
As I said I have tried everything mentioned in the post. If i navigate to storage i see that the drive is listed but it is not mounted, trying to mount it does not work.