First you should clarify the question. #1 (I'm digging doing this #'d lines thing now aren't I?)  root/admin was never the basic usr/pw combo for bitmain.. from the factory they are root/root. If that solves your problem... well I... can't even...  

#2 Where you said "just so its clear....  " nothing after the word clear ... is.   Are you asking if what he meant was reset or reflash? 'cause dude.. if you can't get in you CAN'T flash.. so... completely pointless question.

#3 did you change the password... my instinct was to say you had BETTER have.. but the asking about root/admin kinda suggests you probably didn't.

#4 coming back in and asking after an answer after that much time had passed.. why didn't you hold in the reset button for a few seconds and go at it from the beginning already? I mean if you were under the impression it was either one thing (reset) or the other (reflash) I'd think you would have at least tried one already. (and we already know one won't work.) and if it didn't work you come back with not just bumping the question but with "I did this and this.. it didn't work..."  and THEN reask the question.. or whatever.

#5 If any of this comes off snarky.. well I've been up too long, it was meant to convey humor, and I truly want you to get your machine working and am willing to help... but I also wanna say really man.. really? a little bit too.

#6.. I just can't stop myself from doing another #thing.

Seriously part of me hopes it was root/admin vs root/root 'cause then it will be all hunky dory.. even though if it *IS* that I am also going to scream.