mobile

So I rooted my g3 today no problem it was on 23a... I made the dumb mistake of using flashify to down grade to 12b so I could slap a recovery on there now it won't boot at all it goes to boot screen and say on the top left hand corner in white letter boot verification something something.. I can't even get into download or emergency mode or factory reset.. now verizon said they are sending me another device cause I said I tried to download the lollipop update & it happend.. should I wait until Thursday is there some I can do before than?