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tehreflex

macrumors 6502
Original poster
Jul 30, 2009
295
28
I searched the forums here and on iclarified and wasn't able to find a clear cut answer.

I'm selling my 3GS, old bootrom, have SHSH for 3.0 and up.

Getting new iPhone 4 tomorrow morning.

I want to wipe my 3GS and put 4.0/jailbreak/unlock.

In order to unlock, do I need to be on an AT&T activated SIM first? Or does it just need an AT&T SIM in general?

Most tutorials show it on a phone that is already activated on a carrier (Rogers, etc..).

tl;dr do I need to wipe and unlock my phone before I get the new iPhone 4 tomorrow morning?

Edit: I have 05.11.07 Baseband
 
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