[+/-] : Iphone 3G Unlock:Yellowsn0w 0.9.8 Unlock Tool Out for iPhone 2.2.1

It has been revealed that yellowsn0w (the popular iPhone unlock tool) has reached version 0.9.8, being capable of unlocking even iPhone 3Gs under firmware 2.2.1. While not announced on the iPhone Dev Team's blog yet, the makers of the tool tweeted the news just hours ago.

The iPhone Dev Team's post reads, “iphone_dev: yellowsn0w 0.9.8 is on Cydia for those who were seeing wifi or slowness issues with 0.9.7. This is NOT anything related to 02.30.03 baseband.”

At least one user confirms that “the Wi-Fi issue is gone on [his] UK O2 prepaid 3g 16gig running an O2 Germany and Swisscom SIM.” The post ends with a sincere “thanks” going out to the iPhone Dev Team.

An extended description of the update, as posted over at the hackint0sh forums, goes a bit like this:

“The 0.9.6 version worked for many but it had a hard-coded address for the airplane mode call. The hard-coded address changes depending on FW version (2.2 vs 2.2.1 so far). The 0.9.7 version tried to make it universal and applicable across all future updates. Although it worked for most people, it did have the side effect of keeping wi-fi off after the toggle. The 0.9.8 version fixes that at the expense of going back to hard-coded addresses. That affects us more than you.”
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[+/-] : iPhone3g unlock:Yellowsn0w iPhone 3G unlocker v0.9.6 now available

The release of yellown0w, scheduled for New Year’s Eve, was postponed a day due to a small problem and finally, it has been released into the wild.

Yellowsn0w is the first working iPhone 3G unlock program that doesn’t need any tampering with your SIM card. In fact, you won’t notice any difference in your iPhone’s operation, except of course that your 3rd-party SIM now works after installing.

Yellowsn0w can be installed using both Windows and Mac systems, and easily uninstalled using Cydia, iTunes or the good old Command Line

According to the DevTeam, v0.9.6 of Yellowsn0w should “should fix EVEN MORE problems,” although they did not go into specifics of this release. So if the previous versions of this unlock hack did not work for you, try this one out…. or wait for the final v1.0 to come out, which probably should not take too long to arrive judging by how fast new versions are coming out.

As before, Yellowsn0w is available via Installer.app/Cydia at the following repositories: http://apt9.yellowsn0w.com (Cydia) or http://i.yellowsn0w.com (Installer.app).

And, of course, prior to being able to use it, you will need to

upgrade your iPhone 3G to the latest iPhone firmware version (v2.2) from Apple and then use QuickPwn to activate and jailbreak the device.

Installation instructions and additional notes are below…

To use it:
1. Install BossPrefs and Yellowsn0w from Cydia/Installer
2. Disable everything in BossPrefs
3. Reboot your iPhone using BossPrefs
4. Wait for the iPhone to boot up
5. Take out your SIM card and reinsert it back in
6. Wait a moment or two
7. In settings turn on Airplane mode
8. Turn off Airplane mode
9. All done!

Additional notes:
- As of v 0.9.4 there’s no longer a one-minute delay step. If you don’t see your carrier when your homescreen comes up, you may still need a SIM reinsert (for now).
- If you are in the U.S. and are trying this with T-Mobile, you must turn off the 3G switch in Settings.
- No PIN support yet
- The unlock will silently quit on anything other than baseband 02.28.00. It detects the wrong version and just quits to avoid any damage. Please double check your Modem Firmware setting in Settings->General->About....
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