The location is actually /media/hdd/.kodiI have taken the advice and tried it to no avail as for the kodi folder on /hdd/media it has never ever installed to that location.
You need your hdd/usb mounted as /media/hdd then show hidden files from within your FTP client i.e filezilla.
Image is older, not new.
On that note, since you mention you have taken all advice on board, this thread has run its course in reality, best of using a different device for yourself.