well im stuck in a weird situation...
heres wat happened:
i used the ndure softmod through xboxhdm to softmod my xbox(i did not back up my eeprom cause i didnt know how to back up eeprom in unleashx)...then i started to add apps through flashfxp
i wanted to clear space in my e drive so i formated the e drive and i rebooted(dumb move)so i got error 21 and was able to boot to the ms dash but not the unleashx dash
so i used my xboxhdm disk again to reinstall the dash but it said the hd was locked..so i used atapwd to wipe out my drive and disabled the security. when i turned it on it gave me an error 5....so then i ran the disk again and tried to lock it using "lockhd -p"
now my xbox boots giving me an error 6 and im losing my mind trying to fix it. can someone help before i throw my xbox down a cliff

When you used lockhd -p, what password did you supply? Use that to unlock the hdd.
since I gather you don't have eeprom backup. The softmod xbox requires the hdd is locked with the correct password generated from the eeprom to boot.