iPhone 3G unlocker released

The 'yellowsn0w' unlocker allows third-party SIMs to be used on any iPhone 3G, bringing freedom to the handset for the first time.

The final disadvantage to owning a 3G iPhone compared to its original 2G incarnation has been removed this week with the news that the iPhone Dev Team has released a tool to allow the handsets to be used with any provider.

According to The Unofficial Apple Weblog's report, the hack – dubbed 'yellowsn0w' – has been confirmed as allowing users with the latest modem firmware to use their handsets on any carrier. With the iPhone 3G now available on pay-as-you-go in the UK, this allows anyone to purchase the device and then use it on their pre-existing contract – arguably something they should be able to do anyway.

While there are plenty of reports of success – both in the UK and around the world – the application isn't without its foibles. The Dev Team themselves describe the tool as “beta software [...] use it at your own risk,” and there are known bugs regarding its handling of SIM cards with STK menus resulting in infrequent hangs during the unlocking process. Despite this, the existence of an unlocking tool finally brings the iPhone 3G to the same level of freedom that its older 2G brother enjoyed.

If you're an iPhone 3G owner eager to get your unlock on, CrunchGear's John Biggs has kindly made a step-by-step guide – complete with pictures – to walk you through the process. While the comments on the article are by and large positive, one user – Arpit Gupta – has spotted an interesting bug when using the QuickPwn tool to perform the pre-unlocking jailbreak on a 2008 MacBook: the tool freezes if an on-board USB port is used for the connection to the iPhone. Gupta's solution to this is to use a USB hub instead of an on-board port, which allowed him to jailbreak and unlock successfully.

If you're an eternally curious hacker who wants to see how the team created 'yellowsn0w', the source code has kindly been provided.

Any iPhone owners eager to move to a different mobile provider, or is the unlocker more of a proof of concept than a useful tool? Share your thoughts over in the forums.
Quote Tomm 2nd January 2009, 13:35
I have a question - I've got an iPhone on O2 UK. Do I need to unlock it to use it in another country on one of Apple's partner networks? I am going to Canada and I was thinking about getting a Rogers sim card while I'm out there - will that work or would I need to unlock the phone?
Quote kempez 2nd January 2009, 13:38
From what I've heard and seen the users who are unsuccessful with this outnumber the users who were successful 3:1, so may be worth a 'beware' warning.
Quote wuyanxu 2nd January 2009, 13:59
Quote:
Originally Posted by Tomm
I have a question - I've got an iPhone on O2 UK. Do I need to unlock it to use it in another country on one of Apple's partner networks? I am going to Canada and I was thinking about getting a Rogers sim card while I'm out there - will that work or would I need to unlock the phone?
i think iPhones are locked to worldwide, so UK O2 should be fine with ATnT USA.

but there's no reason to keep it locked. a jailbroken iPhone is so much more than an iPhone, my iPhone 2G have:
-application folders, so my 70+ games will not create cluster
-TuneWiki, one of Android's best music application, it's on jailbroken phone before Android, works with all my iPod music.
-SBsettings: love Android's pull-down status bar? use this on the iphone, have access to all your toggle settings AND a process terminator. also has a try to hold 24 icons, so less homepage shuffling.
-real flashlight, Appstores dim down due to dark ambient, this one goes full bright.
-Copy&paste between SMS and Mail!

and best of all: Cydia, much better than the Appstore, it even has a Theme app that changes the whole phone's theme within minutes.

besides, using the Dev-team's method to unlock is 100% safe. if you mess up, restore in iTunes to the latest official firmware and everything will be back to normal.

for the unsuccessful unlocks, a simple restore in iTune will get the phone back to normal.
Quote fev 2nd January 2009, 16:13
mine went smoothly, now abusing my orange unlimited dataplan with mobileme with 3g and everything!
Quote Skiddywinks 2nd January 2009, 17:18
Yet more proof that hackers are always a step ahead.
Quote Skiddywinks 2nd January 2009, 17:19
Or, at least no more than half a step back :p
Quote Darkefire 2nd January 2009, 19:22
I'm still waiting on the 2G iPod Touch jailbreak, which sadly does not seem to have anywhere near the following of the iPhone. I knew Apple was pretty adamant about being closed-source, but this is getting ridiculous. I have yet to come up with a viable reason why I can't even do so much as transfer a text file over USB to the thing; heaven forbid I transfer a file through something other than Wi-Fi and not have to pay extra for an application to do something so trivial.
Quote quack 2nd January 2009, 19:27
Quote:
Originally Posted by Tomm
I have a question - I've got an iPhone on O2 UK. Do I need to unlock it to use it in another country on one of Apple's partner networks? I am going to Canada and I was thinking about getting a Rogers sim card while I'm out there - will that work or would I need to unlock the phone?
Yes, you would need to unlock it to use a Rogers SIM card. Your iPhone is locked to O2.

I've been trying to get yellowsn0w working with my iPhone so I can use T-Mobile instead of O2, so far no luck.
Quote fev 2nd January 2009, 20:18
which bit you getting stuck with or is it just not playing ball?
Quote quack 3rd January 2009, 00:15
Getting Invalid SIM and SIM Failure messages, just 5 dots no network name.

I'll give it another try tomorrow.
Quote fev 3rd January 2009, 03:07
the way i got mine to co-operate, hard reset with the other network sim in. Worked fine.

My only bugbare is that if i turn my phone off i have to do a reset to get back onto the network
Quote quack 3rd January 2009, 19:51
Still not working... grr!
Quote Phil Rhodes 4th January 2009, 15:04
Rather a complicated process, isn't it? I'm happy to buy an iphone, but I'm stuffed if I'm going to pay forty quid a month for it on top of the apple tax at purchase, so this is interesting to me - but it isn't exactly userfriendly. "Use the latest firmware to pwn your phone"? Dowhat? How? Do I need to own a Mac to do this? "Then, add the repositories"? Oh christ, this is starting to sound like Linux, and we know that never bloody works.

Perhaps userfriendliness will come in time.
Quote fev 4th January 2009, 22:35
very simple process to do, updating firmware is all done by itunes.

Don't slate a system you've never attempted to use, that goes for iPhone unlocking/pwning as well as linux.
Quote:
and we know that never bloody works.
is almost guarenteed to get you shot around here
Quote teamtd11 4th January 2009, 22:53
Quote:
Originally Posted by Phil Rhodes
Oh christ, this is starting to sound like Linux, and we know that never bloody works.

LOL... Well i can say that it always works :?
Quote Phil Rhodes 5th January 2009, 01:19
I have spent, in total, several years being forced to use linux all day, every day.

I spent the first month in a paroxysm of horror at the amount of time everything took, until someone took me aside and said - and I quote directly - "don't worry about it, Phil, this is normal linux ****." This from a decades-experienced software engineer.

Linux is slow and unreliable and horrible and I run screaming from any hint of its presence.
Quote Gareth Halfacree 5th January 2009, 08:21
Quote:
Originally Posted by Phil Rhodes
someone took me aside and said - and I quote directly - "don't worry about it, Phil, this is normal linux ****." This from a decades-experienced software engineer.
I'm guessing you're missing the word "Windows" from that sentence. As in: "a decades-experienced Windows software engineer."
Quote:
Originally Posted by Phil Rhodes
Linux is slow and unreliable and horrible and I run screaming from any hint of its presence.
Strange - almost the exact opposite of my experience. My day job is with a company that develops server appliances running Linux, and it's the only choice for what we do - Windows just isn't an option. Couple that with the fact that I've been running it on the desktop for a good while now and I can honestly say that it's streets ahead of where Windows is right now - Windows 7 included.
Quote AlexB 5th January 2009, 11:05
Did mine when I first saw it on iClarified - and it's brill. I did need to 'reset network settings' but after that it has been flawless. Up till now I had been using a Rebelsim - which is also great for anyone not on O2.
Quote Phil Rhodes 5th January 2009, 16:08
Quote:
company that develops server appliances running Linux

Yeah, fine, for servers. Try doing absolutely anything else with it.

Or rather don't. Don't, and retain your sanity.
Quote Gareth Halfacree 5th January 2009, 16:20
Quote:
Originally Posted by Phil Rhodes
Yeah, fine, for servers. Try doing absolutely anything else with it.
Did you miss the part where I said I run it on the desktop, or did you simply decide that didn't gel with your preconceptions? I use Linux on a daily basis, both as a desktop OS and a server OS, and love it.
Quote Phil Rhodes 5th January 2009, 17:49
Quote:
I use Linux on a daily basis... as a desktop OS

You poor mad fool!
Quote deeem119 6th February 2009, 20:47
I've been trying to find an answer to this for a couple of hours now... If I jailbreak and unlock an iPhone 3G with 2.2.0 firmware, will I later be able to return it to virginal, as-Apple-intended O2 lockyness?

I've found answers that say yes, I can return a jailbroken iPhone to its original state, but the only things I can find about returning an unlocked one are about old, v1.1.2 versions.
Quote quack 6th February 2009, 21:23
Yes, you can. Just restore your iPhone with an untouched ipsw.
Quote deeem119 6th February 2009, 21:34
Sweet, Vodafone here I come...
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