Hi all

I purchased a 16Gb Iphone in the UK and was using it in South Africa. When purchased it was running 1.1.4. I upgraded it to 2.0.1 and used the Pwnage tool to unlock and to jailbreak it.

I decided 2 days ago to update it to version 2.1. I downloaded 2.1 and used normal update from Itunes to update the newly downloaded version 2.1 software. I used my Macbook and selected Option Update (not restore) to do this. My South African Vodacom sim was left in the phone even though this was a UK phone purchased with a O2 sim but never officially unlocked on Apple website.

After the Update, the phone was working without problems and without being unlocked or jail broken! Was I just lucky or is it because the new 3G iphone is sold in South Africa unlocked that it allowed me to update and get an unlocked phone. I was able to change sim cards to UK cards and other SA cards and all worked!

Perhaps I did find the way to "legally" open Iphones without jailbreaking it. Just buy a South African Pay as you go sim card of $0.15 and use this sim when updating to Version 2.1

Hi that's normal and I'm sure isn't related to any factory unlock

If you update from any 2.x firmware to 2.1 the unlock survives because the baseband isn't updated from 04.05.04

Is not that easy

Modem Firmware for the 2G and 3G