Untethered Jailbreak For iPhone 4 – Release Date May Be Delayed

Some bad news if you were eagerly anticipating the release of an untethered jailbreak solution for iOS 4.2.1. The iPhone Dev Team has hinted that this solution – that was initially expected to launch by Christmas – could be delayed by a few days. In a message posted on Twitter, Comex from the iPhone Dev Team has said that he might be missing the Christmas deadline.

While there is an alternative solution available – one that the Dev Team may release if the current release fails to work appropriately – that solution may not be ideal considering that it will require users to take an SHSH blob backup for iOS 4.2b3. Also, the solution from Comex is expected to come with a univesal jailbreak tool that could help all iDevice owners including iPhone 4, Apple TV 2G and iPod Touch 4G.

Untethered iOS 4.2.1 Jailbreak To Release Before Christmas

You must be aware that the present iOS 4.2.1 jailbreaking tool works best only on the older models like iPhone 3G and 3GS. While iPhone 4 and iPad users too may jailbreak using the available version of RedSn0w, these users will need to make do with a tethered jailbreak. That means, every time you need to reboot your device, you will need to plug the handset to a computer – something that is not very convenient if you are always on the move.

Earlier this month, we had heard from the iPhone Dev Team that an alternative untethered jailbreak solution was on the way and that this should be released before Christmas. Now, a couple of weeks later, we hear that the deadline still holds. In response to an iPhone owner, the iPhone Dev Team has responded,

@scotty6kids78 it’ll be here by Xmas (not because we’re sitting waiting for Xmas, but because it’s achievable deadline)”

So there you have it. You have at least one more Christmas gift on its way.

Limera1n Exploit To Jailbreak iPhone & iPads Patched In New Shipments

In case you have been following the iPhone jailbreaking scene, , you will be aware of the Limera1n bootrom exploit that is being used on the latest versions of RedSn0w to jailbreak iDevices. The exploit was discovered by George Hotz, aka GeoHot, and is a hardware exploit. This means, Apple cannot issue a software update to fix the exploit.

While Apple may be unable to fix the exploit on older iDevices, it looks like they may have taken to patching them at least on newly shipped models. An Apple customer who recently purchased an iPad realized that the jailbreak tools available in the market right now do not seem to be working with the new shipments. To be more precise, devices shipped after week 50 of 2010 appear to have resolved the issue.

If you are one who have purchased an iPhone, iPad or iPod Touch very recently and think you may have got a device with a new bootrom, you can confirm this by checking out Settings App –> General –> About –> Serial Number. Does it read something like xx050xxxxxx? Then, you may have a non-jailbreakable device.

We will wait for more word from the Dev team about how these users can jailbreak their iDevices.

Update from the Dev Team :

“the 2 times Apple has fixed bootrom so far, the bootrom version # changed too. This is still showing 574.4, so I wouldn’t worry.”

iPhone Unlock GPS Signal Issue – Fix For Downgrading Baseband Coming Soon

If you are one of those iPhone 3G or iPhone 3GS users who have been experiencing problems with GPS signal connectivity since unlocking your iDevice with the latest version of RedSn0w or PwnageTool, then some fix to the problem may be coming soon.

Folks at the iPhone Dev Team have indicated that they have been working on a solution that will let these iPhone 3G and 3GS users to downgrade their iPhone baseband from the new 06.15.00 back to 05.15.04. While there is no clear indication on how this works, we do assume that the baseband downgrade will still keep these iPhones unlocked.

You may recall that the latest iPhone unlock solution works by upgrading the baseband of the iPhones to the original iPad firmware that was seen to be vulnerable to an exploit. Now if the baseband is downgraded, there is also a likelihood for the phone to get locked back.

There is no clarity on this as yet. We will get you some more info when we get it.

New RedSn0w Jailbreak Tool Hactivates iPhone Without Stock SIM

iPhone users looking to unlock their iDevice for use over alternate carriers normally perform a procedure called hactivation. This procedure lets you sign up to iTunes with a SIM from an alternate carrier thereby letting you use your unlocked iPhone. However because of the patches required, such a process often leads to battery drainage as well as iPhones getting hot pretty soon.

Now Sam Binger, the developer of TetherMe has released a new software that provides an amazing alternative. Called Subscriber Artificial Module (SAM), this alternate method tricks iTunes and iPhone into generating official activation tickets even though the unlocked device carries an unofficial SIM.

To make the process much more simpler, the iPhone Dev Team has now incorporated this technique into their latest RedSn0w jailbreak tool. With this new update, users jailbreaking their device may directly hactivate using SAM instead of the conventional method making the whole process seamless. However, for optimal usage, users will have to first deactivate the existing patches before signing in using SAM. The new RedSn0w update contains a “deactivate” button to easily perform this function.

You can check out the update from iPhone Dev Team here.

iPhone Unlock Causing GPS Crash & Signal Issue

The iPhone Dev team recently released the latest unlocking tool for iPhone 3G and 3GS devices running the latest version 4.2 of the operating system. The unlocking solution was made possible with the help of a known exploit that the iPad’s original firmware was learned to be still vulnerable to. You can read all about the unlock in our earlier article here.

Since the release of the unlock, several users have complained that the application seems to be breaking the iPhone’s GPS software. Users have noted that the unlock either causes the iPhone to crash or cause the GPS to lose signals. In an update to their announcement, the iPhone Dev team had noted,

“Unlockers have been reporting mixed results about GPS functionality at 06.15.00.  Until we can track down what differentiates those who retain GPS vs. those who lose it, be conservative and assume you’ll lose GPS at 06.15.00.  As we work on finding the cause (and possibly a fix), please report your personal findings in our comments section. (Update: early indications are that while 06.15.00 is capable of GPS, it will require some further hacks.  But please still be conservative and assume you will lose GPS at 06.15, in case the hacks don’t work).”

Apparently, the team is still at work at deciphering the missing links and notes that the issue is not due to the limitations of 06.15. In a recent tweet, popular jailbreaker from the Dev Team, MuscleNerd has written,

“We’re working on a fix for those who see the problem (it’s not a limitation of 06.15, we know that much)”

We will let you know if and when a fix becomes available.

Video Demo To Update Baseband Of iPhone 3G/S With RedSn0w 0.9.6b5

The iPhone Dev Team had only recently announced that their carrier unlock for iPhone 3G and 3GS phones are now available with RedSn0w 0.9.6b5 and PwnageTool 4.1.3. As we had noted already, the unlocking process involves updating the baseband of your iPhone to the original firmware of the iPad that is incidentally vulnerable to an existing exploit.

If you are having trouble with the instructions from the Dev Team website for the baseband upgrade, here is a nice video walkthrough above from RedmondPie of the entire process that you can check out in the video below. The video goes beyond baseband upgrade and take you through the complete RedSn0w unlocking process.

But before you proceed, we must warn you that the entire process is quite risky and you risk not just bricking your iPhone but may also void your warranty. So, it goes without saying that the risk is upon you.

Download Free Carrier Unlock For iPhone 3G(S) With iOS 4.2.1 Now

The iPhone Dev team has announced that a free carrier unlock for iPhone 3G and iPhone 3GS models is now available for download. The new unlock exploits the same AT+XAPP vulnerability that was used in the earlier unlock. Apparently, the first iPad firmware – version 3.2.2 with baseband version 06.15.00 is still vulnerable to the older exploit.

So the latest unlock basically needs your iPhone to download the IPSW of this iPad firmware (which incidentally is quite compatible) and then carry out the rest of the unlocking instructions.

If you are a Mac user, you can go ahead and check out for the instructions to carry out the PwnageTool unlocking process here. Windows users can instead choose to check out instructions for RedSn0w from the same link above.

Jailbreak & Unlock iPhone 3G/3GS On iOS 4.2.1 Using RedSn0w

There is some good news if you are the owner of one of the older iDevices like the iPhone 3G and iPod Touch 2G or iPhone 3GS (running the older bootrom). The iPhone Dev Team has noted that iOS 4.2.1 jailbreak for these devices is already ready for download.

This is thanks to the updated RedSn0w 0.9.6b3 that was released last week to jailbreak the GM build of the iOS. The Dev team says that the recently launched iOS 4.2.1 is primarily a public version of the GM build and so the same RedSn0w tool should work on these devices as well.

A word of note if you are also looking to unlock your devices. A new updated version of Ultrasn0w that will work on these devices (with the older bootrom) is expected to be released later this week. So unless you have an iPhone 4 or a 3GS with new bootrom, your device should be good to use by the end of this week.

Run iPhone Jailbreak Apps Without Cydia Using New Redsn0w

The iPhone Dev team has announced the release of a new update to the Redsn0w jailbreak software that is squarely aimed at developers. This new jailbreak application has been built to recognize the recently launched iOS 4.2.1 GM update and consequently to help jailbreak app developers get their applications ready for the next public release of iOS.

What this application can do is to let users who run this software to install jailbreak apps without having to run Cydia – the popular jailbreak app store. The Dev Team writes,

“We’ve made some updates to redsn0w to make it easier for jailbreak developers (and tinkerers) to get their programs ready for 4.2.1.  As noted above, the public version of Cydia (and MobileSubstrate too!) is not 4.2.1-compatible.  redsn0w will now let you install your own custom bundles independent of Cydia (the bundle can actually be Cydia if you’ve compiled it on your own).  These bundles can be up to 15MB in size, and should be in the form of a gzip-compressed tar file.”

Unfortunately, if you are looking at unlocking your iPhone as well, you should stay away from this for now. Otherwise, if you are curious to see how to go about it, click here to read all the instructions from the horse’s mouth.