Share:

iPhone Dev Team Responds to Limera1n 4.1 Jailbreak

Share:

The recent iOS 4.1 jailbreak scene has hit some ‘drama’ as notorious iPhone hacker Geohot has splashed back into the scene out of nowhere with his recently released limera1n jailbreak.

The iPhone Dev Team has responded with a recent blog post shedding their opinions and thoughts on the latest limera1n jailbreak:

 

After a few very dramatic days in the jailbreak community, geohot has come out of nowhere to release limera1n. It’s a bootrom-level jailbreak that works on the iPhone3GS, iPhone4, iPod touch 3G, iPod touch 4G, the iPad, and (technically) the AppleTV 2G.

 

DO NOT USE LIMERA1N IF YOU USE THE ULTRASN0W CARRIER UNLOCK — wait for PwnageTool to incorporate the limera1n exploit. This is so that you can avoid updating your baseband and losing the unlock (possibly forever).

Limera1n uses a different exploit than SHAtter, and in fact covers more devices. Although some may question geohot’s dramatic and competitive style, he obviously does have considerable skill pulling this together in just over a day (although he’s had the underlying exploit for months). Credit also goes to @comex, who provides the untethered aspect of limera1n via another one of his growing list of kernel hacks.

The release of limera1n has (hopefully!) averted the burning of 2 bootrom holes at once (both his and SHAtter). Releasing SHAtter now would be a complete waste of a perfectly good bootrom hole in light of limera1n, and so it can be held until Apple closes limera1n’s hole. While there’s no guarantee that Apple won’t also close SHAtter by then, it provides a ray of hope for devices after Apple’s bootrom respin. Meanwhile, look for an alternate implementation of the limera1n exploit in greenpois0n (and possibly other tools), where it should undergo more testing too.

Limera1n wasn’t tested very thoroughly and does have some issues. Geohot typically works these out in subsequent (and rapid) releases (there are already 3 beta versions of it as of Saturday night!). In the meantime, feel free to discuss any problems and their solutions in our comments section.

 

Essentially, if you’re going to try limera1n, use it at your own risk. It’s a bit buggy right now but people have had success with it. If you care about the ultrasn0w unlock (for using your iPhone with another carrier SIM), stay away from limera1n for now.

ra1ndrop.png

It was pretty brass for Geohot to come out like this and force the Chronic Dev Team’s hand to remake their release to have it updated with limera1n instead of the SHAtter exploit. It does make sense to have Apple cover up one hole instead of two. The way that Geohot went about it did take everyone by surprise. Regardless, his actions could have very well saved the iPhone hacking community a lot of work for the next time around. Kudos to all of these guys for their amazing work!

[iPhone Dev Team]

Share:

  • Anonymous

    Well since Chronic Dev Team is going to hold it back I’ve used limera1n to jailbreak. I’m currently “locked” anyways so I wasn’t losing anything by using it. So far so good………..

  • Can’t wait till white i4 is released. hopefully this month. so I can get back to my sweet cydia/installous days

  • EQZ

    Limera1n worked like a charm! iPhone 4 iOS 4.1 I managed to keep my baseband untouched! Great job!

  • Tommy

    I have a factory unlock iP4, if I jailbreak using limerain does it effect anything at all?

  • Anonymous

    “Factory unlocked” referes to your phone having the ability to use any sim card which means you can use it on any carrier. So jailbreaking should not affect the “factory unlock” as jailbreaking allows you to “customize” your phone’s abilities like add-ons such as 3G Unrestrictor or a tweaks like increasing your phones “stock” volume. The apps (from Cydia) allow you to tweak, customize it’s functions and it’s appearance.

  • Betta-dayz

    maybe now sumbody will work on an unlock..

  • Anonymous

    This is great news. I’m ready to upgrade to 4.1 and then jailbreak my iPhone 4 again. My only question is that I bought a few apps from Rock and all I used to do with a new jailbreak is go back to Rock and restore from an update and all my purchased programs where reinstalled. Does Cydia now provide the same service for former Rock users? I can’t find anything in Cydia that looks like it does what Rock used to do. I really miss Rock.

  • Xetal

    Limera1n works like a charm. I jailbroke my Iphone 4 in 20 sec with both eyes closed. As simple as that. I laugh at all the cry babies that couldnt release their jailbreaks before Geohot. It’s fun to make people wait over something hot. I myself am Laughing so hard now at chronic for being so slow maybe on purpose… Nways Geohot pwned my ipohne 3G many times and he just pwned my Iphone 4 as well 😉

  • Anonymous

    assuming apple hasnt closed BOTH bootrom level exploits by then 😛

  • Limera1n worked perfectly, only draw back is it’s so new that some Cydia apps don’t work yet, but that’s to be expected. I’m very happy with it. I just wish these devs could work together instead of against eachother. In any case this is a great tool, although it may be slightly buggy, it still dose what it’s suppose to just not as seamless as blackrain, but I’m sure after he tweaks it more it will get there.

  • Hey, I was wondering i got my iphone 4 with fw 4.1 which means that the baseband is also updated by default so will i be able to unlcok or there will be an unlock no matter what with devteam.
    Thanks

  • Nick

    Ok so I thought I’d let everybody know what I’m up to so they can use my experience to help themselves. I’m on a mac and I’m going to attempt to update and jailbreak by updating with my computer then running limerain on my girlfriend’s PC.

    The first problem I had is that when I tried to install the update to 4.1 I got an error message during verification and it left my phone in recovery mode. The problem I discovered was that at some point I had modified the hosts file to block apple’s activation server and steer it to Saurik’s just in case I wanted to downgrade, though I never did. This was screwing it up, but I finally made it properly restore after removing that line from the hosts file. So now my phone is in the long process of restoring all my music, apps, etc… It will be a while… I’ll give you another update here after I try the jailbreak on my girlfriend’s computer.

  • I used Limera1n to JB my iP4, worked perfectly. Very fast and very easy. I have a factory unlocked device from Apple so I don’t have to worry about ultrasn0w. 🙂 Thanks GeoHot.

  • Nick

    I managed to connect to my girlfriend’s laptop (after deleting all the photos on my iPhone – when there were photos in it her computer crashed when i plugged the phone in) and ran Limera1n. Worked no problem, though I had to restart the phone to make Cydia show up

  • Tminus85

    Serves chronic dev team right for leaving iphone 3gs out of the loop.

  • Zeus_369

    Installed Limerain this morning and it worked like a charm on my 3GS. Glad it came out instead of Greenpoison otherwise there wouldn’t have been a J/B option for me.

  • Jarndt08

    Hey Guys, I’m a longtime iPhone user (got the 3G in’08, 3GS in ’09 and my 4 on July 30th). That being said, I am just not being opened up into the world of Jailbreaking and I have a few questions. Will Jailbreaking my shiny iPhone 4 void it’s apple care protection plan?? I know with my old phones, things go wrong and have had to have them replaced at the Apple Store multiple times, I want to make sure this is still going to be an option post jailbreak (I know I would have to do a restore via iTunes prior to taking it in of course, but will there still be evidence of the jailbreak after the restore?) and also, what are the odds it would “brick” my phone? can you save a “bricked” iphone?

    Thanks guys.

  • Anonymous

    Yes it voids the warranty. I’ve never heard of someone not being able to restore the phone if something went wrong. I suppose if you broke your phone physically and it was jailbroken at the time, it could get in your way.

  • Jarndt08

    So, what your saying, is I could do a restore and click “set up as new phone” and I would once again be in the clear?

  • Jarndt08

    So, what your saying, is I could do a restore and click “set up as new phone” and I would once again be in the clear?

  • Anonymous

    Can someone verify is 3G Unrestrictor works with facetime on iPhone 4 ois 4.1. I used the new limerain jailbreak it facetime over 3G unrestricted doesn’t work for some reason.

  • pito

    what baseband do have right know?

  • Anonymous

    Anyone???

  • Anonymous

    Anyone???

  • Cycy

    K can someone explain to me whether or not I can update my existing jailbroken iPhone 4 to 4.1 without losing any apps or settings? If my iPhone is jailbroken to 4.0, and I jailbreak it again to 4.1 will i lose any data? Thanks!

  • Ex

    Well you’re updating to 4.1, so you’ll lose all jailbroken app data. But this is standard procedure between updates.

  • AgB

    If I want to unlock my phone, should I avoid limera1n? I’m still on 4.01. I’m not sure how to go about jailbreaking and unlocking now. Please help. Thank you.

  • Ex

    Yes. Avoid.

  • AgB

    Thank’s Ex. So, how then do I unlock my iPhone 4 and upgrade to iOS 4.1? I’m not familiar with using PwnageTool. Thanks again.

  • Ex

    If you want to unlock iOS 4.1, you will have to wait for PwnageTool to be released.

    The software is actually very straightforward. You won’t have trouble using it.

  • Caceresarch

    DO NOT USE LIMERA1N IF YOU USE THE ULTRASN0W CARRIER UNLOCK
    I did it and tried the ultrasn0w unlock for using your iPhone with another carrier SIM. Now my phone 3GS is not accepting other SIM carrier. My phone is not factory unlocked…… did I….screw up?

  • Blue_icic

    My iPhone4 comes originally iOS 4.0.2, but I accidentally upgrade to 4.1, so please, help me how to downgrade to 4.0.2.

  • Jamjamlo

    Screw you GeoHot…. you little twit. Now we have a shit exploit instead of a good one.

  • Hi, 
       Amazing blog article post. I really enjoy with your blog post. I lover your blog article and keep it up regular manner post. 

  • Hi, 
       Amazing blog article post. I really enjoy with your blog post. I lover your blog article and keep it up regular manner post. 

Deals