Limera1n Released to Jailbreak iOS 4.1 for iPhone 3GS and iPhone 4

October 11, 2010 — by Simon Ng19



Limera1n Released to Jailbreak iOS 4.1 for iPhone 3GS and iPhone 4

October 11, 2010 — by Simon Ng19

What a surprise! As we were expecting the release of Greenpois0n on October 10, it turns out that GeoHot, the developer of blackra1n, amazed everyone with the debut of Limera1n.

As mentioned in its official website and iPhone Dev team’s blog, Limera1n is a bootrom-level jailbreak that works on the iPhone 3GS, iPhone4, iPod touch 3G, iPod touch 4G, the iPad, and (technically) the AppleTV 2G. However, Limera1n does not rely on the SHAtter exploit. In fact, it uses a different bootrom-based exploit that allows the jailbreak on more devices.

What You Need to Know about Limera1n

For now, the Limera1n is a beta release. That means it’s not stable and with some known bugs. For those who are adventurous, I know you can’t wait for the final version. But before you download Limera1n and jailbreak your device, here are what you need to know about the jailbreak tool:

  • Limera1n is not an unlock tool. It’s just for jailbreaking only. If you rely on ultrasn0w to unlock your iPhone, please DO NOT upgrade to iOS 4.1. The iPhone Dev team will soon update the PwnageTool jailbreak tool that will be able to let you upgrade to 4.1 and preserve the baseband.
  • Limera1n works on iPhone 3GS, iPhone4, iPod touch 3G and iPod touch 4G running on iOS 4.1. It also works on the iPad running on iOS 3.2.2. For iPhone 3G, please use redsn0w to jailbreak.
  • It’s an untethered jailbreak. Thanks to @comex, who provides the untethered aspect of limera1n.
  • As of now, Limera1n is available for Windows users only. GeoHot will release the Mac version later.
  • It does not support beta version of iOS.
  • If cydia doesn’t appear after running Limera1n, please reboot your iPhone. It’s a known bug.

If you’re adventurous, go ahead to limera1n.com to download the jailbreak tool.

By the way, what about Greenpois0n?

With the sudden release of limera1n, Greenposi0n will no longer be released. Here is the explanation from iPhone Dev team:

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.

Stay tuned. I’ll soon publish the jailbreak guide for Limera1n.

Update: The jailbreak guide has been published. You can check out the step-by-step procedures here.

Simon Ng

Founder, developer and chief blogger of simonblog.com

  • Alex Chai

    arghhh… i was waiting eagerly for the release of greenpoison! trust geohot to always do such things to preempt the dev team’s efforts. i thought he already arrogantly declared that he’d get out of jailbreaking scene? i knew he couldn’t resist all the attention from the jailbreaking community. i will stay with my jailbroken 3.1.2, not gonna use limerain, i never trusted geohot.

  • John

    Geohot is like a Ferrari. Dev team is like an obese snail.

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  • Mr Hoo

    Damn, I upgraded to 4.1 on my iPhone 4 without preserving the old baseband. Now I’m stuck w/ 02.10.04 baseband and I need unlock BADLY.

    I recall in an earlier jailbreak for the 3G, there was a Cydia app that downgraded baseband, thus enabling ultrasn0w to unlock. What are the chances that a Cydia app like will reappear?

  • hazards

    You are the man GeoHot. Thanks a lot. Keep up the good work.

  • Thanks for your sharing! cool guy.

  • Alex

    So has anyone actually done it with limerain? any problems? Am waiting for my iPhone4 to arrive at the end of the month and can’t wait to jailbreak it.

    • @Alex,

      Just jailbroken my iPhone 4 running iOS 4.1 with limera1n. Even it’s still in beta, it does work.

  • Joe

    Successfully jailbreak my iPhone 4 running iOS 4.1 with limeraln,
    Ver 4.1 (8B117)
    Model MC605ZA
    Modem Firmware 02.10.04

    So far so good…

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    Newbee ! looked all over web for jailbreak. and this looks like the only helpful site I could find ! welldone simon.

    I dont really want to jailbreak. I just need to unlock from 02 to vodafone.
    But looks like to do this I have to jailbreak first!
    and if I have this right I can unlock to voda with cydia after jailbreak ?
    So if this is correct my question is…
    iphone 3gs firmware 4.1 (8B117)