Need Stock Bios for y580 - 5DEC90WW or 5DEC89WW

Hello !

I need the original stock Bios for Y580 in Version 8.0

But i cant find it on Lenovos Site or at other pages without any kind of mods. 
Can Someone provide me this Bios ? (At lenovos website i just can find 5dcn40ww)

I flashed a wrong one, laptop was broken. I send it to an electronic guy (bios-chip24.com) wich replaced my Bios Chips 
and flashed them new. But its not the same Bios/EC Version and now i cant even select the bootoptions without 
freezing the bios. 
(I think thats the reason: wrong Bios/EC Version - what do you think ?)

Now i got: 

Bios Version: 5DCN90WW(v8.01)
EC Version: 5DEC89WW (v8.00)

That means i need 
5DCN90WW (Bios+EC) 
or 
5DEC89WW (Bios+EC)

Please help me, i need to sell this laptop to pay my taxes

Patrick