JailbreakMe 3.0 FAQ, Known Issue & More

JailbreakMe 3.0

Comex released the eagerly awaited JailbreakMe 3.0 to jailbreak iPhone, iPad and iPod touch earlier today, which like JailbreakMe 2.0 is one of the easiest jailbreaking solutions for iOS devices, as it can be done using Mobile Safari and is as simple as tapping on a few buttons to jailbreak and install Cydia.

When JailbreakMe 3.0 was released, we thought that it was only meant for iOS 4.3.3 and GSM iPhone 4, but based on comments from our readers (thanks everyone) and the iPhone Dev Team, it looks like it also supports iOS 4.3iOS 4.3.1iOS 4.3.2 and iOS 4.3.3 depending on the iOS device and CDMA iPhone 4.

iPhone Dev team has also published a detailed FAQ on JailbreakMe 3.0, which should answer most of the questions that you might have.

JailbreakMe 3.0 FAQ:

Q: Which devices and firmware versions are supported?

A: In this initial release, the following configurations are supported:

  • iPad1: 4.3 through 4.3.3
  • iPad2: 4.3.3
  • iPhone3GS: 4.3 through 4.3.3
  • iPhone4: 4.3 through 4.3.3
  • iPhone4-CDMA: 4.2.6 through 4.2.8
  • iPod touch 3g: 4.3, 4.3.2, 4.3.3
  • iPod touch 4g: 4.3 through 4.3.3

Q: Do the holes discovered by @comex put my device at risk?

A: Yes.  We recommend installing “PDF Patcher 2” in Cydia once you’re jailbroken to eliminate this risk (any firmware version).

Q: How does jbme3.0 differ from the existing jailbreaks?

A: jbme3.0 is entirely userland-based, from start to finish.  The A5 chip in the iPad2 has no iBoot or bootrom-level exploits yet, so tools like redsn0w, PwnageTool and sn0wbreeze can’t use the limera1n bootrom exploit to inject the jailbreak.  Even for those devices where limera1n works, jbme3.0 injects the jailbreak with a userland exploit.

Q: If I’m already jailbroken on the latest firmware, is there any advantage to jailbreaking again?

A: No, but you should consider showing this to your friends!  Spread the jailbreaking fever.

Q: Are the holes exploited by jbme3.0 closed in iOS5?

A: The holes still exist in the iOS5 betas, but they’ll almost certainly be fixed by the time iOS5 is public.  However because the iPad2 had no public jailbreak yet, it probably wasn’t worth waiting until the fall to use them.  If history repeats itself though, there will be more holes and exploits.

Q: Will I permanently lose the jailbreak if I need to restore my device?

A: For all except the iPad2, saving your SHSH blobs should let you always restore your device to iOS versions where this jailbreak works.  The iPad2 is a little more complicated.  If you have a wifi-only iPad2 and saved SHSH blobs, you’re in good shape.  But if you have the GSM or CDMA iPad2, you won’t be able to restore to 4.3.3 or lower once Apple stops signing its baseband.  There are a few ideas that might work to get around this limitation, but for now it’s best to assume there’s no going back to 4.3.3 once 4.3.4 is out for iPad2 GSM or CDMA owners.

Q: I heard this new unionfs stuff is dangerous?

A: Define dangerous 🙂  Seriously though, although unionfs is a huge improvement to the install time of the jailbreak, it is brand new code and there is the possibility something will go wrong.  Just keep regular backups of your media and content and you should be fine.  If there are any problems, they should appear within the first few days, so hold off and let “everyone else” test the waters if you’d like.

Known Issues:

Comex has also tweeted a few minutes back that there is a known issue with Camera Connection kit and JailbreakMe 3.0.


JailbreakMe 3.0 is quite easy to use, but if you want a tutorial then you can checkout this post, which includes video guides to jailbreak iPhone and iPad using JailbreakMe 3.0.

As always, let us know how it goes in the comments.

[via Dev team’s blog, Twitter (Comex)]

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  • Jai

    awesome, great work as usual!!!

  • psp

    tt means i can’t use my Camera Connection kit?

    • It looks like import of pictures using the Camera connection kit doesn’t work.

  • fas

    It was the quickest jailbreak.

  • ipad2

    It was amazing the speed on ipad 2
    incredible job a master piece of jailbreaking

  • Jim

    The JB did not work for me on my iPhone 4-4.3.3.
    I click free, then install, then the SB comes up and nothing happens. Anyone else see this happening?

    • tom

      lots of iphone4 owners having problems with this 🙁

    • dev

      Reboot then try again. It should work the 2nd time around,if it doesn’t work the 1st time

  • MarcT

    What do you mean by camera kit wont work?

    • It looks like import of photos using the Camera connection kit doesn’t work.

      • aic007

        glad, well not really glad, but good to know i wasn’t the only one that had their phone crash and get stuck in a loop. Thought my Fiance was gonna kill me, she thought i fried her phone, spent an hour and a half restoring it back to normal. guess i can jailbreak it again and hold off on bitesms until a fix.

  • Ch7

    Works on my iPhone 4 from day of release on 4.3.3. cydia is very very slow at adding sources if it does not come up with errors but this could be to do with the amount of people using them 🙁

    I have however come accross a bug with bitesms if you receive an SMS and click on the x to colse it crashes the iPhone the goes in to a infinite loop of rebooting. So I’m holding off reinstalling for the 30th time today (little exaggeration)

    • vio

      got the same problem, my iphone turned into recovery mode loop

  • kormkid

    worked fine on both my 3gs and iphone 4

    no problems

  • Jim

    now I see the Cydia icon start to load, then the icon says installing, and then the icon disappears. Any ideas on this?

    • Shannon

      Same thing happens to me on my iPad 2. 🙁

      • Firemedic92

        I had exactly the same issue. I was using the beta JB beforehand on 4.3, upgraded to 4.3.3 and restored back with my apps, then tried jailbreakme. Started loading Cydia, then vanished. Must have something to do with the residual beta Cydia. I did a fresh clean restore of 4.3.3 and it took just fine. THEN I went to jailbreakme.com and it loaded Cydia without any problem. Next, I restored my apps and Cydia remained.

        Hope it helps!!

        PS – THANK YOU COMEX!!!!!!!!

    • dobo10

      try killing the power turn off then turn back on

    • David

      Yes, I had the same problem — the cydia icon pops up, starts Installing, and then disappears.

      I already had a JB phone on 4.3.2, but I wanted to have the latest iOS, so I upgraded to 4.3.3 and ran jailbreakme, which I now regret.

  • Jim

    I didn’t use the JB beta. I am staring fresh, and continue to have the issue.

  • Pendle Europa 2000 – Black Jaguar –

    I was using the beta to on 4.3 i upgraded to the full release and it works like a dream. Still on 4.3

  • Pendle Europa 2000 – Black Jaguar –

    4.3 is supported on ipad 2 !!!!

  • Jim

    after restoring 4.3.3 I am now getting the message when visiting jailbreakme.com “There was a problem downloading the jailbreak files. Invalid checksum”
    How can this be overcome?

    • Dantheman

      Same problem here!

      • Peng12

        Me 2. I’ve sent @comex an email and hopefully he will find the time 2 reply. If he does I’ll let u know 🙂

    • Jay

      Same issue with invalid checksum error. Email sent.

  • RedViper

    Worked the first time… then got itchy cos my 3G has not been working since day 1… did a restore and had problems completing it on my wondows desktop. managed to get it done on my MBP. restored all apps and di a JBM! Worked yet again. Started having slow installation in Cydia. Now a bit better and the 3G worked! Thanks COMEX.

  • adam

    Downloaded Cydia, no problem (I am using the Iphone 4 4.3.3) Downloaded BITEsms, I am on my 4th reboot, it downloads fine but when I use it for a text, my phone goes into Apple logo loop.. WTF..

  • Only problem with the Camera Connection Kit on iPad2 here, doesn’t work anymore. I hope it will be fixed soon!

  • grunt

    After jailbeaking, the Apple digital AV adapter is not working, only submitting audio, I can’t mirror my iPad 2 anymore

  • Jared619

    Can someone please help me?

    I have an iPhone 3GS and I used the previous jailbreakme to get to 4.0, I am on 05.13.04 baseband. This is all I have done to the iPhone, no unlocks, just the jailbreak.

    I understand that I have to get it to 4.3.3 to use jailbreakme 3.0, but how should I go about doing this?

    Should I just plug it into iTunes and update to latest? I don’t know if I should be concerned about iTunes updating the baseband or something.

    Thanks for your reply! I’m sure more people are in the same boat with me

  • Kimk69

    Any idevice is at a security risk wether it’s jailbroke or “NOT”

  • Paradox

    Is anyone else having trouble adding resources on ipad 2 in cydia? I hit the add button and nothing pops up. Used the jailbreak.me on my ipad 1 and iphone 4 cdma and it works fine for both of those … but just stares blankly back at me with ipad 2…..

    • Paradox

      Nevermind after a respring it would let me add…..

  • IC

    works great but I encountered a small problem. I’m using 3GS and after JB, my phone crashes and reboot in Safemode each time I receives an SMS… ?

    Anybody facing the same problem?

  • maggi

    mine is iphone 3gs 4.3.3 firmware 5.13.04 . I wanna upgrade it to 4.3.2, even firmware also upgrades.. Will jailbreakme helps in unlocking the firmwares other than 5.13.04?

  • titanss

    Not working on 3GS.
    When Cydia goes to install the icon disappears.
    May have to go another route to rejailbreak my 3GS now on 4.3.3.

    • Ryan

      I am a iPhone 4 gsm owner and I have that same issue the cydia icon disappears after loading it says installing then just disappears

  • terri chavez

    can anyone help me? i am trying to jailbrEak my iphone 3gs VERSION 4.0!!! NO LUCK

  • Anthony82

    This kills my battery like crazy. I was using Pwnage Tool with a custom FW before this and it was perfectly fine. Battery last night drained all the way down to 24 in over 5 hours, that’s just not right. And that was also hardly using it at all. So anyone that says this doesn’t drain the battery, there is your proof. I had the custom 4.3.3 installed and it was perfectly fine with battery levels, I had to restore though because my phone froze and wouldn’t boot past the Apple screen. So now I’m stuck trying to install a Custom FW again however iTunes will not let me install it. Even using TinyUmbrella won’t work correctly, it will let me install the original FW but not the custom one. I don’t get it.