UPDATE: If you are looking for the more recent unlock tutorial for the iPhone 3GS running on firmware 3.0 check out the iPhone 3GS unlock tutorial. Have a nice day! =)
The iPhone 3G has been successfully unlocked! It’s a great way to kick off the new year thanks to the iPhone-dev team who have slaved for months over a hot computer to bring you the first successful software unlock of the iPhone 3G with firmware 2.2. That’s right, this unlock requires firmware 2.2 to be installed on the iPhone 3G. With that said, let us get to the meat and potatoes of this tutorial. If you are iPhone 3G literate, you can skip down to the overall summary at the end of this post or watch the video on Youtube from iPhonespies. We hope you subscribe so we can bring you more iPhone 3G news and tutorials in the future.
iPhone 3G Unlock Prerequisites:
Before you set off to unlock your iPhone 3G with the yellowsn0w app, you must make sure your iPhone 3G meets the following requirements.
-You must install firmware version 2.2 onto your iPhone 3G!! You can update your firmware through iTunes.
-You must jailbreak your iPhone 3G!!
-The 3G on your iPhone 3G must be disabled. (settings->general->network)
-Location Services (the GPS on your iPhone 3G) turned OFF (settings->general)
iPhone 3G Unlock Step 1:
-Connect to a Wi-Fi network and take out your primary SIM card (AT&T for us here in the U.S)
-Insert your third party SIM card (The SIM card that you wish to unlock the iPhone 3G for)
iPhone 3G Unlock Step 2:
-If you jailbreak your iPhone 3G, it should have the Cydia App, go ahead and open up that App
-Go to Cydia -> manage -> Sources -> edit -> Add
-Type in the following address “http://apt9.yellowsn0w.com” and hit add. MAKE SURE THE “0″ in sn0w is a ZERO not the letter “O”
-Then go to search and type in “yellow”
-Scroll to the very bottom and you should find the yellowsn0w app in the “Y” section. Install this app
-Once yellowsn0w is done installing onto your iPhone 3G, return to Cydia and exit out of it.
iPhone 3G Unlock Step 3:
-Go to Settings -> General -> Reset -> Reset Network Settings. Wait for it to go to the home screen once more.
-Do a reset of your iPhone 3G by holding the home and sleep-wake buttons at the same time until the Apple logo appears.
-Let the iPhone 3G boot up (this process may take a few minutes so be patient). Once you are at the unlock screen again, wait another 90 seconds and check your iPhone 3G. It should have been successfully unlocked at this point and displaying the signal of your new SIM card!
iPhone yellowsn0w Unlock Didn’t Work?
Yellowsn0w is a beta software so it didn’t work for everybody. Some users have reported successful unlocks of their iPhone 3G with firmware 2.2 by following a few additional steps.
-Upon completion of the last step I mentioned, pop out and re-insert the SIM card and wait for about 30 seconds.
-Go to Settings and turn Airplane mode on for 10 seconds then turn it off again. You should now see the SIM card being searched for! =)
-Still didn’t work? Wait for an updated release. The iPhone-dev team will take in feedback and work diligently to give you a successful iPhone 3G unlock!
-Make sure you have firmware 2.2 on a jailbroken iPhone 3G. 3G should be turned off as well as location services.
-connect to wi-fi and put in your new SIM card
-Install yellowsn0w from Cydia
-reset network settings
-reset iPhone 3G and wait for 90 seconds
-If that didn’t work, re-insert SIM card and wait for 30 seconds
-turn airplane mode on for 10 seconds then turn it off again.
Have a happy New Years from all of us at iPhonespies. If you guys are interested, check out some iPhone 3G accessories. It didn’t work for me the first time so don’t be afraid to try it again! Also feel free to leave some comments about whether or not this worked for you!
[Source: iPhone-Dev team]