01 januari 2009 - Martijn Derks

iPhone 3G unlock alleen voor firmware 2.2

Het iPhone Dev-Team   had al aangekondigd dat zij de tool “yellowSn0w” zouden uitbrengen waarmee het nu mogelijk is om je iPhone te unlocken. Zodat elke SIM kaart te gebruiken is en niet alleen de door Apple ondersteunde telco's. Eigenlijk zou deze op oudjaarsavond uitkomen.

Maar door het vinden van een onverwacht lek in de BaseBand en daardoor het plotseling mogelijk worden van de unlock voor firmware versie 2.2 en BaseBand 02.28.00. Heeft men ervoor gekozen even te wachten om te zorgen dat men deze versie kan uitbrengen. De unlock zal via Cydia uitgebracht worden en daarom zal je een jailbroken iPhone 3G moeten hebben. Wil je waten hoe je een jailbreak uitvoert? kijk dan hier De software versie is 0.9 en is in beta, er is altijd een risico, dus gebruik op je eigen risico!

Op 21 december liet MuscleNerd al in een live demo zien hoe het in zijn werk gaat. De unlock methode werkt alleen op een iPhone 3G met firmware versie 2.2 en BaseBand 02.28.00 en een jailbroken iPhone 3G. Zodra de tool uit is zal ik hem installeren en kijken of het werkt,maar het iPhone Dev-Team heeft ons nog nooit teleurgesteld dus dat komt helemaal goed!Je kan zien welke BaseBand je heb door te gaan naar instellingen -> algemeen -> info -> Modemfirmware (dit is je baseband nummer)

Knipsel10 yellowsnow

Het iPhone Dev-Team heeft ons de hele avond vermaakt met een raadsel en een aantal updates zie hieronder:



Update 1: yellowsn0w isn’t released yet. Don’t  wastekeypresses and valuable drinking time searching repos or the web for it ;-) as soon as it is released we’ll announce the details here :-)

Update 2: What do we have here then??

Update 3:  Now to explain the above screenshot.  The soft unlock has undergone many changes in the last two days.  The most significant one: the soft unlock will now be only for baseband 02.28.00 (the most recent baseband).  Yes we’ve been advising everyone to avoid updating their basebands, and in general that will always be the best policy.  Not every baseband version is guaranteed to have a hole through which we can inject the unlock. 

Update 4: (a) The yellowsn0w Cydia package will be available as soon as our devteam member in charge of the repo wakes up to fix a file permission error.  (b) Once it’s out, those users with SIMs that have apps and other menus on them will need to do that extra step we’ve been talking about.  They’ll need to pull and reinsert the SIM once after rebooting the phone to engage the unlock.  Even though it’s needed only once per boot, it’s still a nuisance and we’ll be fixing that ASAP.  (c) You’ll know if you fall into that “extra step” category if your carrier doesn’t show up within about 10 seconds of the slide to unlock screen.  (d) Yes it really is for baseband 02.28.00.  That means everyone can use it now! (e) Happy New Year!

Don't eat yellowsn0w! 

Hello all,

We wish you a very happy, healthy, and hopeful 2009!

We’re about to release the yellowsn0w 3G unlock application, and we have some information that you may find useful:


  • The unlock about to be released works exclusively with baseband 02.28.00. This baseband is provided by the latest firmware update (2.2) from Apple.  You’ll need to upgrade to this release using iTunes and then use QuickPwn to activate etc. There are plenty of tutorials about this on iclarified, bigboss, and other established tutorial sites.  Because it works on 02.28.00, it is available to everyone on the planet.  This means we don’t need to unnecessarily expose holes in earlier basebands, which is an important concern.
  • The application is a small daemon that is launched on boot.  It injects the payload at boot and also whenever there is a baseband reset.  You won’t notice anything about it other than that your third-party sim now works.  It’s a small program and unobtrusive.  There is no GUI (this is by design).
  • You can add the application using the sources outlined below (coming soon). There are Cydia and Installer sources available, so use whichever you are comfortable using.


  • There is a known issue with SIM cards that have STK (SIM Toolkit) application menus.  These menus are usually items such as “top up” “get credit” etc. These menu items confuse the application sometimes.  Removing and reinserting the SIM once after reboot (give it about 10 secs after you see the slide to unlock widget) fixes this issue.  We’re working on a better fix.
  • For those of you using SIM cards without STK menus, the application has some optional arguments that will make the unlock much faster for you.  So either experiment on your own (use “yellowsn0w -h” for usage) or wait for a customization writeup.
  • After you install yellowsn0w via Cydia, you should return to the Cydia main menu then reboot your iPhone with the 3rd party SIM installed.  Wait for the slide to unlock screen, then wait 10 or 15 secs more.   If you don’t see your carrier name pop up, then remove your SIM, reinsert it, and wait 10 secs more.  This is the step we’ll be working on eliminating next.


  • The application is version 0.9.  This is considered beta software, you use it at your own risk. You know the score.
  • The application is released on a non-commerical basis.  Please do not accept pirates and scummy ripoffs of this software. We license this software for single use and in a non-commerical environment (meaning you can’t charge for it). The techniques and methods used are not to be used by third party companies. We are watching you Jody…we won’t be so forgiving this time.
  • Direct linking to the repository URLs is prohibited, please only link to this post. We will be checking referers.
  • Happy 2009 and enjoy!

The iPhone 3G is used all over the world with all sorts of SIM cards, and we almost certainly will see untested and unexpected situations.  If the soft unlock doesn’t work for you on day 1 (literally day 1, of 2009!) then please don’t panic or be impatient.  This is new territory for everyone, so enjoy the ride as much as you can :)


Over de auteur: Martijn Derks