I did not understand that I had to jailbreak first before I could unlock. The flow chart at iClarified is a bit misleading - suggests that unlock and jail breaking are different processes that use different software. [/quote]

Not concerned about the warranty being void (good excuse to get a 3GS!). Just want to be sure I have everything working. If I jailbreak and unlock, will my current SIM card still work? Or do I need to wait until I want to install the new SIM?

3G, version 3.0.1

Use redsn0w or Pwnage Tool 3.0?

jailbreaking allows for patching the firmware so that it can be unlocked (and unofficial apps). it's not like other phones where you just punch in a code.

your current sim will continue to work. you just get the ability to use other sims too.

that should be fine. jailbreaking 3.01 is slightly trickier because you need 3.0 as well (at least until they update the tool).

also, don't upgrade to 3.1 (yet) or you risk losing the ability to unlock. a future tool will support upgrading to 3.1 and maintain the ability to unlock but it has not yet been released.

redsn0w is basically plug and go, it's very easy. pwnage is the power user tool for generating a custom jailbroken firmware package which is then flashed normally from itunes. after jailbreaking it, you'll need to install ultrasn0w.

Ok, now I understand.

That's very helpful.


"need 3.0 as well"? Could you clarify?

Had read that elsewhere but thanks for the reminder.


That's what I thought, but thanks for the confirmation.

the jailbreak tools need an official firmware copy to patch and they aren't yet aware of 3.0.1, so they'll reject it as invalid. fortunately, the difference between 3.0 and 3.0.1 is minor so pointing the tools at 3.0 while the iphone has 3.0.1 works. it's easier than it sounds.

http://blog.iphone-dev.org/post/1534...cling-goodness

i would assume that the 3.1 aware tool will not need this workaround, but it's not out yet.

read on another forum that SFR sim won't work on an unlocked iphone 3GS -- can anyone verify this??