These are instructions on how to jailbreak and unlock your iPhone 3G on iOS 4.2.1 using PwnageTool 4.1.3 for Mac OS X. This tutorial will explain how to upgrade your baseband if needed for an unlock.
Step One
Make a folder called “Pwnage” on the desktop. Download a couple of things:
If you are on the 05.14 or 05.15 baseband you will also need the iPad 3.2.2 firmware. You can find out your baseband version in Settings -> General -> About -> Modem Firmware.
In iPad OS 4.2 ‘Orientation Lock’ was changed to ‘Mute Switch’. If you want to change it back there is an app for that.
NoMute, a jailbreak only application, switches the controversial mute switch from iPad 4.2 into its former (and more useful) orientation lock. The plugin is free and you can get it from the BigBoss repository on Cydia.
By the way you can lock screen orientation without jailbreaking through multitasking panel – just push Home button twice, slide to the left and hit lock icon.
DevTeam hacker MuscleNerd tweeted that they after releasing redsn0w jailbreak for 4.2 the team can start working on iPhone unlock. Users can expect the unlock for the iPhone 3G and iPhone 3GS this week. The iPhone 4 unlock will take more time and no concrete info is available about that yet.
The unlock will be released for iOS 4.1 firmware. So is you need unlock, do not update to iOS 4.2.1.
DevTeam worked hard for the last several hours and released jailbreak tool for iOS 4.2.1. It is redsn0w 0.9.6 b4.
As usual we remind all ultrasn0w unlockers please stay away from this officialfirmware. Wait for the ability to create custom 4.2.1 IPSWs that don’t update your baseband!
New redsn0w 0.9.6 b4 uses limera1n exploit and will successfully jailbreak all devices. The only problem is that it is a tethered jailbreak, which means you will have to plug it to a computer and rerun redsn0w on every reboot. This so called tethered or semi-tethered jailbreak. This condition applies to iPhone 3GS (new bootrom), iPhone 4, iPad, iPod touch 2G (MC model), iPod touch 3G and iPod touch 4G. Hackers are working hard to create untethered jailbreak for these devices. To use future untethered jailbreak you need to save SHSH keys for iOS 4.1 using TinyUmbrella utility or directly in Cydia.
Old devices like iPhone 3GS (old bootrom), iPhone 3G and iPod touch 2G (non-MC model) can be jailbroken-untethered right now using this latest version of RedSn0w.
Next iPhone/iPod/iPad firmare iOS 4.2 is due out soon. What can we expect in terms of jailbreaking 4.2?
Limera1n exploit for 4.2 in most cases is a tethered jailbreak. That means if you have to reboot your device, it will show a “connect to itunes” logo until you run the jailbreak software again.
iPhone 3G – will run 4.2 untethered. Redsn0w will be updated.
iPhone 3GS – old bootrom will run 4.2 untethered if done via Pwnagetool while updating from 4.1. Otherwise it will be tethered.
Tethered jailbreak isn’t that bad for iPads and iPods. But if something happens and your iphone reboots while you’re away from your computer, you cant use the device until you get home and run some tool on your computer again.
We suggest not updating until new expoit will be implemented in new utility.
The community is working on a solution to this to either make the jailbreak untethered or at least semi-tethered. Semi-tethered means the device will at least reboot, but unjailbroken while on the road until you return to your computer.
Multiple developers and users testing out the iOS 4.2 betas claim that the AirPlay functionality was definitely removed from Apple’s iPhone 3G. AirPlay is gone from the golden master version of iOS 4.2. In fact, the AirPlay did work on the iPhone 3G at the previous betas. There are no any reasonable causes why the AirPlay was cut from the GM version. Perhaps, Apple is trying to get users to upgrade to their latest iPhone model or, on the other hand, it is just an issue in the GM seed. May be the AirPlay functionality will return in iOS 4.2 public release. Anyway, there will undoubtedly be a jailbreak that can re-enable it.
MobileTerminal is a terminal emulator application for the iPad and iPhone. The version of MobileTerminal that is available in Cydia doesn’t work with iPhone iOS 4.x. However there are beta versions that do work, but aren’t on Cydia because they are still in beta stages. This tutorial will show you step-by-step how to install MobileTerminal on iPhone with iOS 4.x (tutorial for iPad is here). If you have old version of MobileTerminal installed – uninstall it in Cydia (Search – MobileTerminal – Remove).
MobileTerminal is a terminal emulator application for the iPad and iPhone. The version of MobileTerminal that is available in Cydia doesn’t work with iPad iOS 3.2.2 and iPhone iOS 4.x. However there are beta versions that do work, but aren’t on Cydia because they are still in beta stages. This tutorial will show you step-by-step how to install MobileTerminal on iPad (tutorial for iPhone is here). If you have old version of MobileTerminal installed – uninstall it in Cydia (Search – MobileTerminal – Remove).
It seams that hackers have had their hands on the iOS 4.2 beta 3 for iPad. But, as we know, there is no officialjailbreak for it. Recently the well-known iOS hacker posted aт interesting picture in Tweeter. The shot depicts an iPad running MobileTerminal, a jailbreak application, which gives users full access to the terminal command line interface. But it looks strange, because it means that the hackers missed the beta 4, which should be released this past Tuesday, according to the Apple’s schedule. This could signal that Apple may skip beta 4 altogether and go straight to a GM build sometime next week.