How can I unlock a 3G data card?

We have some 3G data cards on t-mobile but we are moving over to vodafone or orange and want to use the same cards.

How can I unlock them to work on any network?

I know it can be done because I have seen them about.

Anyone know how??
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wint100Asked:
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Erik BjersPrincipal Systems AdministratorCommented:
Contact vodafone or orange and ask them if they can do this.
wint100Author Commented:
Is there another way? Orange don't seem so helpful.
Erik BjersPrincipal Systems AdministratorCommented:
I don't think so,

Orange isen't helpful because they want you to but there 3G card...
Gary CutriData & Communications SpecialistCommented:
I have seen unlock software on ebay for these devices.  The software my be sourced for free but if you can quickly purchase it I would check it out.  If there are none available just email a few sellers as there are always people selling unlocked ones.

e.g.
http://cgi.ebay.com.au/UNLOCKED-3G-UMTS-GPRS-Vodafone-Mobile-Connect-Data-Card_W0QQitemZ6849399791QQcategoryZ96912QQrdZ1QQcmdZViewItem

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