Help GT540 unlock problem after upgrade

[g8jvm]

Hi, I looked at previous threads, not much help.
I paid for unlock codes from foneszone, but they supplied two codes,
since the upgrade to 2.1-upgrade 1, the hidden menu seems to have gone,
and entering 2945#*540#
just brings up the window for the unlock code to be entered, no secret menu.
It looks like only 10 attempts to unlock are allowed, not sure what happens after that, bricked ??? I've use 3 so far.
I'm in the USA next week and I dont want to pay $2/min for incoming and outgoing calls.

Provider is vodafone UK

any advice appreciated TIA
Richard

 

[g8jvm]

Strange the unlock code supplied worked after a request to vodafone to unlock was made.