Peter Binder Some time ago we informed you about the release of the jailbreak for the iOS 4.2.1 update. For most devices, it was a tethered jailbreak, meaning you had to boot after every restart of the device. Now the untethered version has finally been released, for which we bring this guide.
The hacker team Chronic Dev Team is behind the current version. He found a new security hole in iOS and released the greenpois0n jailbreak. They fulfilled the promise that they are working intensively on the untethered version. There was constant speculation about the release until it finally saw the light of day at the beginning of February.
In the meantime, some of greenpois0n's bugs have been fixed, as evidenced by the recent release of the RC6 update. The supported devices are: iPhone 3GS, iPhone 4, iPad, iPod touch 3rd and 4th generation, Apple TV 2nd generation.
How to jailbreak
We will need:
- Connected iDevices,
- A computer with Mac OS or Windows,
- The greenpois0n application.
1. Download the greenpois0n app
Open the page in your internet browser, select your operating system version and click to download the application.
2. Storage, unpacking
Save the file to your desktop, where we will unzip it. Then we run greenpois0n.
3. Preparation
After starting, connect the iDevice, or leave it for the last backup in iTunes, then turn off the device.
4.Jailbreak
After turning off your device, click the Jailbreak button in the app. Now follow the instructions given in the greenpois0n program. First you need to perform DFU mode.
5. DFU mode
We can get into that mode with a few simple steps. We start by holding the sleep button (sleep button) with the device turned off for three seconds.
After that, we continue to hold that button, to which we also press and hold the desktop button (home button). Hold both buttons for 10 seconds.
After this time, let go of the sleep button, but continue to hold the desktop button until greenpois0n reacts.
So there's nothing to worry about, plus the jailbreak app will guide you on its own.
6. Wait
At this stage, just wait for a while and the jailbreak is done. Now let's move on to the final steps directly on the iDevice.
7. Loader, installation of Cydia
After your device boots up, you will see an icon called Loader on your desktop. Run it, select Cydia and let it install (if you want to).
Once installed, you can easily remove the Loader.
8. Done
The last step is to reboot your jailbroken device.
If you have any problems with this guide, which I hope you don't, please let us know in the comments. Please note in advance that you jailbreak at your own risk. Sometimes there may be problems, but most of the time it's nothing that DFU mode can't solve.
(The greenpois0n.com page is currently unavailable, most likely due to an application update. However, it will surely be back in full operation soon so that users can download the latest jailbreak version. - editor's note)
Source: iclarified.com
Hi, I can't run the greenpois0n link. I can't even find it through google. How is it possible?
Yes, it is possible, unfortunately the page is currently unavailable, most likely due to the greenpois0n update. However, it should hopefully be up and running soon :). I got it again last night.
Well done, does it work on windows 7 64 please? Thanks for the info.
greenpois0n is here too
http://mirrors.ih8sn0w.com/gp_win_rc5_b2.zip
Johnnyxjr: yes, but it should start in compatibility mode for xp
This is an old version…
Are there still GPS issues in this version or is it already fixed?
Hi, I have a gp rc3 b5 on my 2GS. Is it necessary to upgrade to a higher version?
It shouldn't be, it's mainly about expanding the list of supported devices. But you won't spoil anything ;).
hello, iP4 32GB, then everything works great, GPS is ok
Pls What link did you use?? And what is your axis???
It's going again
Hello, can you please advise me of a proven and latest jailbreak version that can still be installed on the iPhone 3G. Thank you
So according to iOS, if you have 4.2.1, then the latest version of redsn0w from the Dev Team.
Hi, I can't get the iPhone 4 into DFU mode at all, I follow the instructions exactly, but the phone freezes during the operation. When I release the sleep button, it doesn't even complete the full 15s :-( What am I doing wrong?
Phone freezes? And is it turned off when doing DFU? Otherwise, the only advice is to keep trying and find the right trick :).
I have done JB several times on my 3GS, but since yesterday I am the owner of an iP 4 and I really have no idea where the error is. The phone is switched off, IOS 4.2.1, I follow the instructions exactly, I really don't understand what I'm doing :-( But thanks for the advice, I'll be patient and I'll try and try and try...
iP4 I tried it 3 times
2x Crash Greenpoison and the need to restore iP from backup
1x iP turned off and could not be turned on
Does it work for anyone at all?
Thanks. I'm glad that this server also regularly informs about jailbreaks. And the tethered jailbreak was already starting to get on my nerves :) it's quite impractical when a person sometimes has to turn off the iPad to save the battery, or restart it due to freezing, and if the PC is not nearby at that moment to perform a tethered restart, e.g. .in my case, the iPad didn't even start.
Is there an article somewhere about what jailbreak solves? So if you solve other things than applications. I can't find anything about it anywhere.
I don't know about him. Anyway, JB is not only about apps (if you mean stolen ones), that's why we don't publish these articles (we don't support it). For example, I use JB to explore the iPhone's capabilities and do more customization that Apple doesn't allow.
Hi, I'm the one thinking about JB but not really sure why. Could you please, Petra, summarize why you use it in a few points (perhaps by comparing it with a phone without JB)? What characteristics does iP have that are so fundamentally different? Why is it worth taking the risk of losing the warranty on such an expensive device? Thank you
These are mainly various modifications and applications that you will not find in the App Store. I consider SBSettings to be the most important, which is a pull-out panel for turning wifi, BT, 3G, etc. on and off. Furthermore, various accessories on the lock screen, such as calendars or displaying various information (mails, weather, rss). I myself liked to use the tweak, which allows to have 5 icons in the dock.
As far as modifications are concerned, I would especially suggest changing sounds (custom SMS tones, sounds for mail and calendar notifications) or changing icons.
Unfortunately, jailbreak brings with it a lot of negatives, mainly disruption of system stability. Your iPhone may occasionally freeze, slow down, or stop working.
Well, I'm just wondering what jailbreak is about, what will it bring me? Because I normally buy applications and I don't have a problem with it. Which possibilities will I discover? specifically on the iPad.
For me, the main reason is multitasking turned off (double battery life and nothing slows down) and a desperately empty start screen where I put the weather, emails, etc. Just like every normal mobile phone has. (LockInfo purchased-warez is stupid and I have bad experience with it)
Does anyone have a similar detailed guide to jailbreak iOs 4.2.1 on an iPhone 3G?
I hope it's Ultrasn0w, and it's said to be somewhat faster than version 4.1 on 3G.
Thank you for your help.
Hello,
I just wanted to ask how to upgrade an already "jailbroken" IPhone? I have system version 4.0… Can I use ITUNES normally?? Otherwise I have Cydia. Is there any difference in version 4.2? Thanks for the advice and links to youtube (I searched there but in vain :-))
Otherwise, I am also interested in whether it is possible to upgrade when I have 4.2.1 jb. Now I need to update my IP to 4.3. Can I upgrade through tunes? Or what?
I tried it, everything works ok. Only for Windows it looks a little different. Thanks
Good, I have such a problem... After installing the jailbreak and cydia, I started cydia (it updated) and then my Ipod (4) restarted and it didn't want to turn on anymore... Can you advise me what the problem might be?
JB works on ipod touch 3G 8gb. i have win 7 x86.
Hello, I downloaded the program, I did what is in the instructions, but I don't know why my phone doesn't want to pick up, it keeps showing, try again.
best tutorial thank you :))))
Hello, I have a problem with starting Cydia after JB. everything installed fine for me, but after starting Cydia, after 5 seconds it drops to the locked screen and keeps going like this :( please advise. thank you
I have exactly the same problem... that it doesn't want to start cydia... have you solved it somehow?...
Hello, I would also like to know if it is possible to upgrade to, say, iOS 4.3 after a jailbreak
Thank you for answer
I have one question. If I don't have Wi-Fi at home, can I disconnect the iPod?
Good evening, thank you for the great tutorial, it worked great on my iPad (as a Jablick beginner, I didn't even expect it, the only problem, paradoxically, was that I didn't know how to turn off the iPad :-). But I'm asking for a lot of advice: the reason why I started jailbreaking is the impossibility of using flash applications. Specifically, I want to be able to use the flash version of my favorite newspaper, which I want to subscribe to. After jailbreaking according to this guide, I installed Flash via Cydia (the installation did not report any errors), then I restarted the iPad and the only change that appeared is that a red F appears in the place of the Flash application, but when I "click" on it, it appears vowel : abort() food.c. 43 (or 34, I don't know now) and that's it. So just a little shift. I will be very grateful for any advice. I don't have much experience with Apple products (except iPod and iPad), otherwise I use a PC, OS Ubuntu Linux, so I might have made some completely stupid mistake. Thanks.
Try another version of that phrase. If you can search for them in Cydia, you will find a lot of them there. It also depends on which version of IOS you have. However, don't forget to uninstall the one that carried you before, so that it doesn't give you errors like I did when I installed it... :-)
Hello, I have a 3gs 16g, everything went well, I have Cydia installed, but I can't install any applications. . . ?? What is wrong ??
Díky
I need to download via Cyndia Appsync. And then they let you install apps via iTunes. :)
... but there is no appsync version for sw 4.2.1 on cydia. . . . . so what about that???
Hello... I have a problem.
I have Win XP and after finding the DFU, I click on the jailbreak at the bottom left... my computer and Ipod 4g work, but after a while the jailbreak gives me an error... that I should try again. What about that please?
Thanks for the answers
Well, I guess it worked... but a new problem... I can't start the loader... ipod seems to flash but nothing happens, what about it now?
my iPod 4G is kind of sulking… everything is fine, after DFU mode it turns on, it loads the jailbreak, and at that moment it gets stuck and won't even move… I always have to restart it and it just doesn't work…
HELLO, WHEN THE TABLE RUNS FOR 15 SECONDS, ETC., I WILL DO IT AND WRITE THAT I SHOULD TRY AGAIN, YOU DON'T KNOW WHAT TO DO WITH IT?
Hello bazaar .. I tried it on iPhone 4 in windows xp .. and everything works fine, thank you ;)
Hello, please, how do I start it on the app...? according to the instructions I don't know how... please help
Hi, I jailbroken my phone, according to the instructions and it works, I was wondering when I downloaded the "tom tom" app from the torrent, how to upload it to the iPhone 3G. Through i Tunes it reports an error and doesn't appear there... ??? I still read something about appsync somewhere, but I don't know what, how, why, …. I'd rather ask than make it all over…. thanks for the reply
I don't know how via torrent, I personally use the instalous program directly on the iPhone, it downloads and installs it by itself. if you look on youtube you will definitely find it.
Everything works fine and the tutorial is absolutely amazing… Thank you MOOOC to the authors… :D
Hello, do you know if it works on iphone3g 16g???