How To JAILBREAK 4.2.1 iOS Greenpois0n RC5 2 UNTETHERED | ALL iPhone, iPod Touch, iPad

This video will show you how to Jailbreak iOS 4.2.1. I have added some troubleshooting tips and have attempted Greenpois0n multiple times using this method. It worked for me, so as long as you follow the steps very carefully, you should be okay.

Supported iDevices:

- iPod Touch 2G (all bootroms)
- iPod Touch 3G
- iPod Touch 4G
- iPad 1G
- iPhone 3Gs (all bootroms)
- iPhone 4
- iPhone 4 Verizon (_not_tested_)
- AppleTV 2

Make Sure:
- Your Device is restored to 4.2.1 CLEAN DFU (except those preserving baseband)
- You have Greenpois0n from the official source or one of the mirrors below
- Anything that blocks connections in or out should be turned off or allowed for Greenpois0n (like Little Snitch)
- You have internet connection

Other things:
- My phone was activated with an AT&T Sim card
- Sync'd to a new profile on iTunes

Steps:
1. Restart your Mac
2. Plug in your iDevice after your Mac has restarted
3. Kill iTunes if it opens
4. Open Greenpois0n RC5 2
5. Hit Jailbreak and get ready
6. Follow the on screen instructions for DFU mode, make sure you do them on time!
7. CONTINUE HOLDING THE HOME BUTTON UNTIL YOU SEE SCROLLING TEXT!
8. You should be Jailbroken with the Loader app on your homescreen
9. Open up Redsn0w
10. Find your 4.2.1 iPSW
11. Click Next
12. Check mark INSTALL CYDIA
13. Contine the steps of Redsn0w
14. Your device will reboot and now your are Jailbroken on 4.2.1 with Cydia!

Things You Need:
- Greenpois0n Read Me(just to read): http://pastie.org/1527535
- Greenpois0n RC5 2 *UPDATED*:
http://tinyurl.com/4hczn2s (mirror)
http://tinyurl.com/49fhov4 (mirror)
- Redsn0w &4.2.1 Firmware: http://tinyurl.com/ct6ffk
- www.Greenpois0n.com (OFFICIAL)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Check out the show sponsor:
http://www.iPhone4Forum.net

Follow on Twitter:
www.Twitter.com/Phil_Synowiec

PLEASE RATE, COMMENT, AND SUBSCRIBE!

Category:

Science & Technology

Tags:

• Greenpois0n
• 4.2.1
• Jailbreak
• RC5
• RC4
• RC3
• RC2
• iPhone
• iPod
• Touch
• iPad
• tutorial
• guide
• how
• to
• error
• fix
• update
• no
• cydia
• not
• showing
• up
• Released
• Science
• Technology
• iOS
• exploit
• limera1n
• Rumor
• jailbreak
• TinyUmbrella
• Thefirmwareumbrella
• greep0ison
• delayed
• green
• poison
• greenpoison
• chronic
• dev
• iPhone4
• four
• geohot
• george
• hotz
• Shatter
• greenpois0n
• release
• date
• team
• iphone
• ios
• 4.1
• ipod
• touch
• 4g
• blog
• pod2g
• Sn0wbreeze
• snowbreeze
• apple
• ipad
• 4.0.1
• 4.0
• 4.0.2
• 3.1.3
• 3.1.2

[darkwatersasuke]

Oh wow. Good game. This dumbass thinks everyone has a fucking Mac. Why don't you upload the Windows one too smartass? -_- Fuck head.

[iKryptic]

@darkwatersasuke why dont you look in my channel and stop being so ignorant

[iKryptic]

@darkwatersasuke lol or even in the video bar to the right --->

[rotateandrollfreaks]

my cydia didnt stay open

[appletech121]

Didn't work! EDIT: Just got it working at UNLOCKIPHONEIOS5(DOT)INFO. Thanks Dale for the good info.

[realMADRIDstar07]

please reply i have a windows n a ipod thouch 2 g 16g n version 4.2.1. and i go to jailbreak me .com on my pod thouch n it saids it has to be the new version n my computer wont let me upload the new versionPLEASE H

ELP HELP HELP HELP HELP

[LTechApple]

I didit but it didnt work.

Why ?

[pereda13]

thanks man. this shit actually worked.. thanks again.. :)

[rolandsofi2]

Hi, was just wondering which version of redsnow i should download I have windows and my ipod is 2nd generation? which is right for me?

[WongB777]

hahaha i can see ur hand moving in the background

[Trialsbiking2k11]

thanks man this worked the first time

[ihatenjoi]

@darkwatersasuke Dude your a dick.

[InFiNiTeSkiiLL]

@darkwatersasuke because he has a Mac and isnt buying windows for you...