Post: Jailbreak for iOS 4.2.1 [NOOB FRIENDLY]
12-28-2010, 08:01 PM #1
D@ EnVvY!
OMG did you read this?
(adsbygoogle = window.adsbygoogle || []).push({}); Jailbreak for iOS 4.2.1

My first jailbreak was using this program and on this firmware with my Iphone 4, hope you all enjoy.

To clear some things: This jailbreak support iphone 4 3GS 3G and ipod non-MC Model. This jailbreak is untethered for some idevices and tethered for some, heres the list:

Untethered
Iphone 3GS 3G and older ipod touch models
Tethered
4th generation devices (ipod touch 4th gen and iphone 4)

Tethered means that you have to connect the phone to your computer every time you turn it off or needs to reboot it you have to connect it to the computer.

These are the files you need:
Redsn0w 09.06.b4:
Windows: You must login or register to view this content.
Mac: You must login or register to view this content.
The 4.2.1 .ipsw firmware for your device: (you ONLY need the one for your device!)
Iphone 4: You must login or register to view this content.
Iphone 3GS: You must login or register to view this content.
Iphone 3G: You must login or register to view this content.
Ipod touch 4: You must login or register to view this content.
ipod touch 3G: You must login or register to view this content.
Ipod touch 2G: You must login or register to view this content.
Itunes 10.1 [go to apple.com and download]

1. Start itunes 10.1 and have it running in the background
2. Start Redsn0w
3. Hit browse and browse for your downloaded .ipsw file
4. Hit next and it will prepare the jailbreak
5. Select install Cydia and press next
6. This is a page that tells you to make sure your Idevice is plugged in and turned off
7. Now it's work time! Whene you press next you have to get ready and hold the power button for 3 seconds. After that press the home button without releasing the powerbutton and hold them both for 10 seconds. Thene release the power button but keep holding the home button for 15 seconds. The instructions also comes up on the screen. This is called putting your device in DFU-mode.
8. If done correctly Redsn0w will recognize your device and the jailbreak begins, go grabb a sandwich, and when you come back, you will have a jailbroken Idevice!

Notes:
If Cydia doesnt open, reboot your device and it will be working. If you have tethered jailbreak you will have to do these jailbreak steps again to boot up, but instead of checking "install Cydia" you check "just boot tethered now"
Check this thread to see good cydia apps: You must login or register to view this content.
If you want help, just pm me or write here!

Credits:
The iphone dev-team for Redsn0w 09.06.b4
You must login or register to view this content. for helping me with my jailbreak so I could help you and for the download links
Nathanx for his thread that contained cydia app list
Me, for writing this thread

Happy holidays <3

The following 5 users say thank you to D@ EnVvY! for this useful post:

beryce, JBooFY, Krunch, Mezzid, Zeebra
01-23-2011, 02:12 AM #56
HecmanHD
< ^ > < ^ >
my iphone 3gs is MC model. Is the jb thetered??
01-23-2011, 10:30 AM #57
D@ EnVvY!
OMG did you read this?
Originally posted by hecman View Post
my iphone 3gs is MC model. Is the jb thetered??


It will be tethered I think, make sure you make an backup before you start so that if something goes wrong, you can restore it to that exact condition with all your contacts saved Smile
01-23-2011, 01:03 PM #58
HecmanHD
< ^ > < ^ >
Originally posted by D
It will be tethered I think, make sure you make an backup before you start so that if something goes wrong, you can restore it to that exact condition with all your contacts saved Smile


thanks m8 I will try today
01-23-2011, 01:50 PM #59
D@ EnVvY!
OMG did you read this?
Originally posted by hecman View Post
thanks m8 I will try today


No problem and good luck Smile
01-29-2011, 10:57 PM #60
Generale Lyon
Bounty hunter
thank you for the guide Smile
01-29-2011, 11:10 PM #61
Anyone help, whenever i start at holding down the buttons around 5 seconds left of holding both of them, my ipod quickly flashes white then it does not recognize ? :(
01-29-2011, 11:16 PM #62
D@ EnVvY!
OMG did you read this?
Originally posted by Generale
thank you for the guide Smile


No problem mate! Smile
Originally posted by Dylan View Post
Anyone help, whenever i start at holding down the buttons around 5 seconds left of holding both of them, my ipod quickly flashes white then it does not recognize ? :(


Hmm, try to get your ipod in to DFU-mode with out it being plugged in to your computer so that the restore screen comes up (the one that says that you schould plug in the device) and then put it in and put it in to DFU mode. I have done that one time and it worked with my problem, maybe works with this one to Smile
01-29-2011, 11:22 PM #63
Originally posted by D
No problem mate! Smile


Hmm, try to get your ipod in to DFU-mode with out it being plugged in to your computer so that the restore screen comes up (the one that says that you schould plug in the device) and then put it in and put it in to DFU mode. I have done that one time and it worked with my problem, maybe works with this one to Smile


So i do the same thing but plugged out of the PC, if so it doesnt work :cry: FML
01-29-2011, 11:28 PM #64
D@ EnVvY!
OMG did you read this?
Originally posted by Dylan View Post
So i do the same thing but plugged out of the PC, if so it doesnt work :cry: FML


FUUUUU*CK! Have you restored the Ipod completely? Try that one time Smile

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