How to Jailbreak iOS 4.1 via greenpois0n [Jailbreak]
Wondering how to Jailbreak iOS 4.1 with greenpois0n? Jailbreakers have a wealth of options when it comes to iOS 4.1. We've already looked at how to jailbreak iOS 4.1 via limera1n and how to jailbreak via PwnageTool 4.1. Now we're looking at the Mac version of greenpois0n. PC users shouldn't have too much difficulty following along with any of these as the steps are generally the same. It's really up to you what tool you decide to use. I suggest unlockers use PwnageTool 4.1 though, as it will preserve your baseband for future unlocking. And as always, we take no responsibility to any damage done to your iPhone, iPod touch, or iPad.
This version of greenpois0n will jailbreak the following devices:
- iPhone 4 and iPhone 3GS
- iPod Touch 4th and 3rd gen
- iPad (iOS 3.2.2)
Hit the jump for a walkthrough and video!
You'll need to download greenpois0n first. After that you'll be able to launch it and it'll walk you through how to put your phone in DFU mode.
If for some reason it keeps failing, try making sure iTunes is running in the background. I know some people were saying it would fail unless iTunes was running. You'll know it worked when iTunes starts telling you you're phone must be restored before it can be used.
greenpois0n should then do its job of jailbreaking your phone. You'll see a lot of random text across the screen of the phone and it'll reboot itself. If all goes well, when it reboots, you should have a loader icon on your homescreen. (For some users it seems to be the greenpois0n icon, for others it's showing up as a white blank icon.) Either way is fine.
Open the loader and install Cydia. Once that's done, your iDevice will reboot once more and you should now have access to Cydia. Pretty simple process.
But if you do have questions or issues, feel free to visit our Jailbreak Forums for help and tips.
How-to, jailbreak, and DIY Editor at iMore, owner at The Pod Drop & AnoStyle, Potter pundit, and the ninja in your iOS
There are 35 comments. Add yours.
is there a tool to deal with unlocking sim?
Hi,
If I jailbreak my iPhone 4 (I'll probably use pwnagetool) Will I lose all my data including apps, contacts, etc?
greenpois0n failed every time when I was trying to JB. Limera1n worked like a charm.
Out of cueiosity which one of these is the safest to use
Neither lol
Ha
@lance you shouldn't but always back up first in case something goes wrong
@boots jb isn't what people say it is. It's next to impossible to permanently brick your phone. Something goes wrong just restore and use a backup. Problem solved.
Jailbreaking by no means is "unsafe"
How would you back up your JB stuff before upgrading to 4.1? Do you upgrade to iOS 4.1 before jailbreaking again? Thanks in advance. I'm on an iPhone 4 and not worried about unlocking.
Is JB your device secure? Is all your personal info safe?
How do you jailbreak Ipad IOS 4.2 beta 3?
@Guy, you don't. You will have to wait for a new jailbreak. That's assuming Apple has patched the exploit that lead to 4.1 jailbreak.
@josh, if you mean backing up all your cydia apps I highly recommend "PkgBackup" from cydia. The best thing Ive purchased, its like backign up your iPhone to iTunes, but for all your cydia stuff.
To the people who failed with greenpois0n... Here are a couple tips:
GIANTS IN TGE WORLD SERIES :)
YIPEEE
i'm using 3Gs 4.1 and trying JB myself but i do it over again and again it just don't work,i can see the Loader and install Cydia but the Cydia icon is blank and can not start,what goes wrong and how to fix it?Thanks!
FLASH, AGAIN ? REALLY ?
greenpois0n and lime ra1n aren't working for me, what do i do?
Are these all untethered meaning if i turn my iphone 4 off and then on again will i need to plug it to my computer or does it remain jailbroken. Thanks :)
They updated greenpois0n to jailbreak iPod touch 2nd generation! (MC model, MB model I'm not sure about...)
I'm new on this world. Here is my question: I've an unlocked Iphone4. But it was bought unlocked, I've bought it on UK. I use it on Brazil. I need to care about this when choosing my jjb method or any of them will work?
When u done hacking it when i go to cydia what do i got todo after that. its like my ipod cant find what i want to search what do i have to remove installed
Hi, I've used greenpoison to jailbreak my iphone 4 but thereafter I lost my network! I can't make or receive any calls at all. Are there any ways to rectify it? I've jailbroken my phone before with jailbreakme.com for v4.0.1 and used greenposion for v4.1. However, the cracked apps I have seem to have disappeared and I did a back up before using greenpoison and I tried restoring backup but the information is still missing. Hope you can help me on this. Thanks!
Here is a German Greenpois0n-Tutorial: http://www.youtube.com/watch?v=iSNPm6GUBBE
Its funny to see people btihcn about the unlock iPhone 4 should of paid like I did I'm factory unlocked now on 4.3.2 bb 4.10.01 now they can do no more imei unlocks like I got
is it ok if my ipod keeps turning off and on?
Thank you for posting this knowledge.
When Do you think We can UNLOCK 4.1? and what ways..
Thanks
hi, i used limera1n for the first time and it worked, but i put an update on my iphone 4 and now i cant get on it. My two questions are how can i jailbreak it now and how can i get the sim lock on it off. thanks
Hi I have3g firmware 4.1 and I used greenpois0n it worked for a while then now it's keep turning off and on by itself at random times I restored it and jailbroke it again but it happened again. Please help:/
It doesnt work for 4.2.1. version iPad
I would love to see a video about changing sound settings, e-mail,etc, using Winscp with a Mac.
I did a jailbreak on my iPhone 4 os 4.2.1 using greenpoision and now I lost all of the apps that came on the phone like my phone app settings camera photos ect please help
http://iphonefre.com/2011/07/untethered-jailbreak-iphone-4-3-3-via-jailb...
http://iphonefre.com/2011/07/untethered-jailbreak-iphone-4-3-3-via-jailb...
When entering DFU mode I wind up with the plug into iTunes logo I think this means I'm going into rceovery mode?I've tried like 40 times, please help!
I don't get it why in the Hell would you want to jailbreak your IPhone 4? I bhuogt a Apple product because I like Apple Apps. Jailbreaking is for someone who doesn't have a life or maybe they just need a booty call.VA:F [1.9.111134]please wait...VA:F [1.9.111134](from 0 votes)