Error 270

[Little Lion]

hi.

When i try update my rom to wm 6.1 4.02, show the error 270.
And i test with other roms and appear the same error.

Help me, please

p.s. Sorry my bad english

[Zecanilis]

Are you in Windows Vista? -> Try XP
Do you have a SDHC card installed? - > Take it off