Help with jailbreaking and Cydia for iPhones, iPads, and iPod touches.

Pangu provides an iOS 9.0 untethered jailbreak. TaiG provides an iOS 8.4 and 8.3 untethered jailbreak.
Check @PanguTeam, @taig_jailbreak, @saurik, and /r/jailbreak for news and updates.
You can use Cydia Impactor if you need to un-jailbreak an 8.1-8.4 device without restoring.
Instructions for jailbreaking iOS 8.0-8.4.
Before asking a question, check Frequently Asked Questions to find quick answers!
How to fix some mysterious problems.

I have an iPhone 3G with 4.2.1 installed. I am currently jailbroken with Redsn0w. Can I use Greenpois0n to jailbreak it again? Would I have to restore it first? I tried greenpois0n and its not reading my DFU mode.

asked 23 Feb '11, 21:23

MasterLukeS's gravatar image


If you're already untethered on 4.2.1 with RedSn0w, there's not really much point in re-jailbeaking anyway.


answered 23 Feb '11, 21:34

Endareth's gravatar image


Greenpois0n won't work on the 3G, as the included readme states. You could use Sn0wbreeze though.


answered 23 Feb '11, 21:28

spockers's gravatar image

spockers ♦♦

Your answer: (please use the "add new comment" button unless you are actually answering the original question)
toggle preview

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "Title")
  • image?![alt text](/path/img.jpg "Title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported



Asked: 23 Feb '11, 21:23

Seen: 4,501 times

Last updated: 23 Feb '11, 21:46

JailbreakQA is by chpwn and comex.
About JailbreakQA. Powered by OSQA.