Softmod On Xblive

ok , ive got a soft modded box with evox dash as deafault and i dont know what bios i have cuz it says unkwon.Nywayz when i click the microsoft dash button i get error 21. I wangt to make a live account but cant because of this. the xbdash and ms dash and evox dash r alll toghter in the c: partion thingy.i also have these in my appps folder but still get error 21 when i try to go to dash. Can someone telll me how to fix this?

 

oh yeah its a seagate 30 gi hd . with f: partion

 

ok if ur getting an error code 21 when u click on ms dash then u dont have a ms dash or the one u have is currupted some how

 

i know i have 1 cuz it says its there, where can i get 1, i cant find them on bittorrent sites

 

and if i get 1 where does it go?

 

If you do get one, it would go under the C:/ drive.

 

would i replace the old one with this 1 and could i screw up my xbox doin this? Could u give me a step by step please?