I need stock firmware from ANYONE SM-t807A it does not exist on the web.

I have spent days looking, turn on goes to kies firmware screen yet when i put in the model and s/n it shuts and the new samsung app to replace kies is of no help. I can get to the download screen and odin shows it up but no ATT 10.5 Tab S Sm-T807A firmware ANYWHERE.

Please help this is a very very expensive paperweight and im not affiliated with ATT so them helping me is out of the question.