Jailbreak / Unlock iOS 4 – Everything You Need To Know

Earlier today, Apple released the iOS 4 to the public as expected. Before you get all excited though, there are some things everyone should know about before hopping the bandwagon and updating to iOS 4. If you want to properly jailbreak your iDevice, make sure you give this a read before taking any further steps. The new software update, iOS 4 is compatible with the 3G, 3GS, the newest iPod Touch, and iPhone 4. For those of you have already played around with the GM release, the build number on this public release is exactly the same (8A293). There are a few changes despite the build number being the same. There is no game center in the pubic release and also, if you go to http://oo.apple.com to opt out of iAd data collection on the GM release, it states that you are not on iOS 4.

Jailbreaking

Note: iPhone 3GS and iPod 3G owners should stay away from iOS 4 for now (especially if you used Spirit to jailbreak)

A hacker named Wizdaz has informed the community that PwnageTool is currently being updated as we speak. The new Pwnagetool (PwnageTool 4.0) will support the iPhone 3G (with the Pwnage exploit), iPhone 3GS and iPod Touch 2G (both with 24kPwn exploit). Don't forget that there is no support for the newer bootrom. If you are one of those jailbreakers who have been at it from the very start, then you will probably remember the tethered days. You will probably want to wait until Spirit is updated or a new tool is updated for a different version.

If you have the iPhone 3G, you always have the option of Redsnow but please stay away from any custom packages. The iPhone Dev Team wrote it well and because they are such a credible source, here is what they said:

We are working hard on a release to our tools that will jailbreak your device (or give you iOS 4 via the jailbreak train) and provide you with a carrier unlock.Until these tools are released you should hold off on updating your device until we have fully tested our tools with all the relevant devices.

If you rely on hacktivation or a carrier unlock (ultrasn0w) then you should not upgrade until we have fully tested and released our tools.

Don’t be tempted with unofficial PwnageTool/redsn0w bundles or releases, just check here or our team twitter for real time release information.
Remember, we risk our devices so you don’t have to (but this time anyone who has made a mistake upgrading their baseband firmware at 3.1.3 or 4.0 should be OK real soon Now!

Unlocking The iOS 4

For those of you who want to unlock your phone, the iPhone Dev Team has released ultrasn0w for unlocking your new iOS 4. We released a guide about this earlier so don't forget to check it out. If you are trying to unlock, you are pretty much good to go although we'd still recommend waiting just a little bit longer before hopping the bandwagon to the iOS 4.

If you want to keep track of the hacker hotshots check out their links:

iPhone Dev-Team
WizDaz
MuscleNerd

..and don't forget to follow us on Twitter and/or subscribe to our RSS feeds to stay on top of all your iOS 4 needs (including the upcoming jailbreak release.)