iPhone Dev-Team Releases Developer Jailbreak for iPhone OS 4.0

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Posted April 15, 2010 at 11:51pm by iClarified

The iPhone Dev-Team has released a developers only jailbreak for iPhone OS 4.0 Beta One.

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This is a beta release of redsn0w targeted at developers of jailbroken apps. It uses the same pwnage2 DFU-mode exploit that we've been using since the 2.x days. Nothing new is revealed to Apple, and it's not applicable to the iPad. Don't go near it if you use yellowsn0w, ultrasn0w, or blacksn0w.

Please not that this beta is not meant for the average end-user. There are many things “broken” with jailbroken apps in the 4.0beta1 environment right now (that's the real reason we showed “Veency” in the 4.0 jailbreak demo video last week, instead of say MobileTerminal.app, which is broken!). This beta redsn0w allows the developers behind those jailbroken apps (like MobileTerminal.app!) to fix their software before the general public gets iphoneOS 4.0.

Because it's meant for JB app developers, this beta redsn0w does not perform hactivation. You'll need a properly-registered developer UDID with Apple to get past the activation screen. For similar reasons, there is no Windows version of this beta redsn0w (since apps are developed on MacOSX). Please don't pirate Apple software.

Anyone other than developers of jailbroken apps porting their software to 4.0beta1 should still be using our previously-released redsn0ws for 3.0 through 3.1.3
What devices, platforms, and FW versions are supported?

This BETA release supports:
● iPhone 3G only (for now)
● Mac OSX only (for now)
● The 4.0beta1 FW only (for now)

YOU SHOULD STAY CLEAR OF THIS BETA SOFTWARE IF YOU RELY ON A CARRIER UNLOCK. That's because the beta redsn0w works only if your device has already been upgraded to the stock 4.0beta1 IPSW from Apple, which contains a baseband update. If you installed that IPSW, you've already lost the carrier unlock until the next planned release of ultrasn0w and blacksn0w.
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You can find instructions on how to install the jailbreak using the link below. Please remember DO NOT install this unless you are a developer and you know exactly what you are doing!

We will let you know when a jailbreak is available for end users!

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iPhone Dev-Team Releases Developer Jailbreak for iPhone OS 4.0

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Andrew - April 17, 2010 at 11:11am

You guys complain so much!! Developer doing all this for free...so just be thankful that they are doing something.

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Mark - April 17, 2010 at 5:03am

Who cares about this right now/////4.0 won;t be out until mid summer.....can't they focus on 3.1.2 or 3.1.3??? I don;t get it!!!

Jay - April 16, 2010 at 11:56am

Maybe the Dev team nor anyone else is aware that 4.0 is just a beta right now and can be changed very easily to break a jailbreak without having to issue a update.

No way - April 16, 2010 at 12:16pm

It's beta? Who'd have guessed? Did you read the article Jay?

Ricekake - April 16, 2010 at 2:40pm

I don't know jay, but I have this wierd feeling the dev might be aware of that. Maybe. Lol

Googs - April 16, 2010 at 2:51pm

The word "beta" appears atleast 10x.

wezz69 - April 16, 2010 at 3:06pm

also the jailbreak uses an exploit tha has been used by the dev team since 2.XX firmware onwards and apple havent fixed it also states above that apple is not aware of the exploit to even fix it, so whether 4.0 is beta or not is irelevant