Accidentally Updated unlocked & jailbroken iPhone 3Gs?

I absentmindedly updated my phone, not thinking anything of it, until I remembered that its been jailbroken and unlocked.
Was on 5.0.1 and now on 6.0.1.
When turned on, it wants to go through the configuration process, but won't work since I don't have the original SIM card, as it was bought online.
What do I need to do to get my phone working again?
I don't have the money to replace it, or that would be my first option.

Your only option is to have it Jailbroken and unlocked again. There are many tutorials available online for just such a procedure.

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