This article was posted over one year ago, the information may no longer be acurate.
Unlocked French iPhone upgrade to 1.1.3
We had ‘some’ trouble unlocking our French iPhone before we could use it on a foreign network due to a software bug in the iPhone 1.1.2 firmware as you could read in one of the previous posts. The end result was a very expensive iPhone which we still needed to jailbreak, kinda stupid and a waste of money. Yesterday Steve introduced the 1.1.3 firmware as expected so Jelle took the dive and tried it out. Well, I'm happy to report it works perfectly!
I synced my iPhone and choose to upgrade. I didn't switch my SIM card back the the Orange one so I upgraded with my Base (a Belgian operator) SIM card. iTunes downloaded the 1.1.3 firmware and upgraded my phone. I got an error saying my SIM was locked, locked as in PIN locked, not network locked so that's fine. I entered my PIN code and docked my phone again. There it is my legally unlocked - non jailbraked - iPhone!