code error on 8310's

Hi I have 3 8310's that come up CODE ERROR when i try to unlock with the DCT4 calc

they all work fine on o2, is there any special way of doing these or is it just V2 codes?

What happens after 5 code errors??

These are the codes i get for IEMI 350985101518171
#pw+875061407342566+1#
#pw+417577143517570+2#
#pw+307406537526406+3#
#pw+997102624523005+4#
#pw+329066351752764+5#
#pw+082333311075036+6#
#pw+416507441467100+7#

any help would be appreciated.
Craig

I know that some phones require 10 minute break between trying codes, but i guess that info doesn't help you if you are only trying the one code.

I just unlocked them with a datacable.

Thanks anyway

Craig