Debranding your n8: Remove alle the garbage the operators put on your phone!!!
Follow the step by steps instructions and install the cracked uda (so you won't have trouble installing unsign .sis and won't have to sign them yourself before... blablabla)
You have to have this version of phoenix 2010.8 to install the cracked uda (the cracked UDA is the only way atm to jailbreak your n8, to install all games or applications (signed or unsigned))
DOWNGRADING IS NOT POSSIBLE!!!
Don't try to install an older version on your n8
It will just flash it dead...
Use dead phone flashing to get it back to life..
po ovome, mozes da ga ozivis. nadji neko detaljno uputstvo i probaj. ovo ili slicno
http://www.n8fanclub.com/2011/07/how-to ... oenix.html