Hacking [help] PS3 CECHC01 without bd drive, how update?

[kapapt]

Hi,

I've a ps3 CECHC01 without BD Drive with fw 4.41, i've another drive from a dead CECH that i've conected.

I've got the blue led on and off if the cd is in or out of the drive, but no info on xmb.

to update is necessary the bd drive be married with the motherboard?

Is posible to downgrade without e3?

What can i do to update to 4.82, install cfw and remarry the bd drive?

Thanks in advance