Unfortunately samcrap won't do anything about it. Look on Craigs list and you'll find people who can get around it. And don't waste any more money on Samsung junk. Samsung is Korean junk just like their cars.
I've had the same problems: Tried to do a reset through the "Settings" menu - wouldn't let me. Performed a manual reset and hit this brick freakin' wall. Unbelievable. I can log into my google account and see my S5 (though it can't be located because I've reset it), but I still can't get past the Samsung account lock screen. Whoever thought of this idiotic way of securing a lost/stolen phone should be slapped. A company as big as Samsung, you'd think the engineers could come up with something better.
Oh, and how is this problem "Solved"? I don't see any solution presented that helps anyone.
My last two phones have been Samsung, but now I think I'll take the advice here and move onto another brand. Good luck, Samsung. Try not to set anything on fire.