Warning: Despite Imminent iOS 5.0.1 Jailbreak, Stick To iOS 5.0 If You Want To Unlock Your iPhone 4S

Warning: Despite Imminent iOS 5.0.1 Jailbreak, Stick To iOS 5.0 If You Want To Unlock Your iPhone 4S

Yesterday, we told everyone who was still rocking a jailbreak under iOS 4.3.3 (mainly iPad 2 users) to upgrade to the soon-to-be-jailbroken-for-A5-devices iOS 5.0.1 now, before Apple releases iOS 5.1, which closes the vulnerability. If you don’t, you might lose your chance for a jailbreak for good.

Here’s the caveat though. If you’re on an iPhone 4S and if you want to carrier unlock it down the line, don’t upgrade. iOS 5.0.1 has a different baseband than iOS 5, and while the Dev Team has an exploit for iOS 5 that they hope will lead to an unlock, they don’t know when or even if they’ll be able to crack open the later update.

Dev Team Member MuscleNerd reached out to iClarified:

MuscleNerd has confirmed to iClarified that an untethered iPhone 4S jailbreak for iOS 5.0 will be released at the same time as the iOS 5.0.1 jailbreak, or a day or two later. As always, for those looking to unlock, it is standard operating procedure to stay at the lowest possible baseband.

In fact, its recommended that those already on iOS 5.0.1 should check their build number and downgrade from build 9A406 to 9A405 while Apple is still signing both builds. Due to differences in the basebands, its more likely that an unlock will be found for the earlier build than the later.

No promises, but if you’re rocking iOS 5 on an iPhone 4S, don’t update. An untethered jailbreak exploit should be coming soon for iOS 5, and if you upgrade, you might lose your ability to unlock your phone once and for all.

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  • joewaylo

    (Once and for all) for a couple of weeks maybe. It took hackers but a few to exploit the betas of 5.0 and find the key to unlock them in 5.0 and soon enough 5.0.1′s imminent jailbreak. Won’t be long until they open 5.1.

  • joewaylo

    (Once and for all) for a couple of weeks maybe. It took hackers but a few to exploit the betas of 5.0 and find the key to unlock them in 5.0 and soon enough 5.0.1′s imminent jailbreak. Won’t be long until they open 5.1.

  • jgr627

    How nice after every other blog was saying its safe to update, I don’t recall reading anything about the possibility of losing the baseband unlock

  • Walied Ali

    you guys are hilarious, tell us to upgrade our phones to 5.0.1 yesterday, and today u tell us we better not ? like… why post so quickly if you are going to retract your statements the next day.. smh

  • Alan Holwill

    Well that scared me for a while as I was postponing the upgrade to 5.0.1 pending the jailbreak and then as soon as I do I see this article. I am a lucky one though as my phone is carrier unlocked so don’t need the unlock. Phew!

  • Sadyka

    Can you jailbreak 5.0.1 downloaded in te software update section on your phone. Or do you NEED to restore it via iTunes ?

  • djgrahamj

    *hugs factory unlocked 4S*

  • Tia19

    LOL Thanks? dude! it works! now I have $25 to spend on itunes =) install JUNOWALLET on apple store? once installed open the app and sign up when prompted use this code JX161337 now go to rewards per install download 3 of the apps once installed open for 30 seconds each app now get yourself a $25 iTunes card,1 voucher per device available for iPad iPod and iPhone remember to say thanks : )

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  • Aj Tk427

    Yay, on 5.01 with 9A405, didn’t think I’d ever get to unlock my phone but if they do a Jailbreak and an unlock I’m going to be super happy.  (only because I will be going on a Month+ long trip soon and would love to be able to use my iPhone while I’m away)

  • Ola Mikkel Fornes Brekke

    hmm, currently updating to 5.0.1 via iPhone – HOW do i cancel? There´s no cancel download button, and turning it off don´t seem to work either! 

  • David L. Clark

    Wait a sec… So… Update the 4S from 5.0 to 5.0.1 or stay at 5.0? WTF are you guys saying?!

About the author

John BrownleeJohn Brownlee is a Contributing Editor. He has also written for Wired, Playboy, Boing Boing, Popular Mechanics, VentureBeat, and Gizmodo. He lives in Boston with his wife and two parakeets. You can follow him here on Twitter.

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