Help with Bm622 Password problem

[Senpai]

Pano kaya to mga tol mga bro,

bm622 2011, bale ginawa ko syang new series mac,
nalolog in ko pa naman sya dati
pero ngayon, kahit anong admin pass generator di gumagana yung password
v.01 by squash, wimax tool yyyxyyyz, the casper, halos lahat wala,


possible solution kaya dito?
downgrade ko kaya sa 622 2010, pano yung downgrading at firmware,
pahelp naman  
Done na pala to, problem solve with Tutorial - Bm622 unknown/modified admin/user telnet/gui?? pasok!