Jailbreak your iPhone

Jailbreak iPhone 3G iOS 4 GM with Redsn0w


Musclenerd just confirmed that redsn0w 0.9.5, which they developed to jailbreak OS 4.0 beta 1 to beta 4 is totally compatible with iOS GM 4 for iPhone 3G. The beta release is still full of bugs and not intended for the end user. The beta version was meant for iPhone Jailbreak Apps programmers to test their applications to correct under OS 4. If you are going to jailbreak your iPhone 3G with Redsn0w make sure to read the note / warning section carefully before attempting a install of iOS 4 GM on your iPhone.


This guide is for iOS 4 GM release, please check our new guide with updated version of Redsn0w

Jailbreak iPhone 3G iOS 4 with Redsn0w on Windows Mac


Note / Warnings :

  • Redsn0w 0.9.5 is available for iPhone 3G and Mac OS only.
  • You should be a registered Apple developer or your iPhone UDID should be registered with any iPhone Dev, so you can install the beta version.
  • If you update to iOS 4 GM your Baseband will be at 05.13  and you will lost the carrier unlock until the next planned release of ultrasn0w and blacksn0w.
  • You can Downgrade to 3.1.3 but remember only your firmware will be downgraded and baseband will be untouched.
  • Redsn0w 0.9.5 is also in beta and may cause you some bugs, errors so if you are not a developer stay away from beta release of both iOS 4 GM and Redsn0w.                  Redsn0w_iOS4

How to Jailbreak iPhone 3G OS 4 beta with Redsn0w 0.9.5 Beta

  1. Make sure you’ve iPhone3G already running on iOS 4 GM
  2. Download and Launch the redsn0w 0.9.5 beta
  3. Now here comes the tricky part, when redsn0w ask you to select firmware, browse to iPhone OS 4.0 beta 1 or beta 4 ipsw instead of iOS 4 GM.
  4. Select “Install Cydia” and click “Next”. Use DFU mode to install the jailbreak.
  5. When your iPhone3G comes back up, you’ll notice Cydia has a blank white icon (we told you many things were broken right now!) You’ll also notice Cydia has no sources. Go to the Sources panel and add this repo: http://apt.saurik.com/cydia-3.7 (be sure you have a carrier or wifi signal first!). When Cydia restarts, you should see its real logo now, and the standard sources should be ready to use.

Note : You can downgrade back to OS 3.1.3 any time, just follow our guide to Downgrade iPhone 3G 3GS iOS 4 GM to OS 3.1.3

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Comments ( 7 )

Have Something To Say ?

  1. zebrum June 14, 2010 Reply

    took a long time to boot (3 minutes) but it worked

  2. Tsunasa June 13, 2010 Reply

    Isn’t it normal for apple to hold back their security features until final rollout so people can’t prep jailbreaks? Considering how long it took to figure out 3.1.2 and 3.1.3, I can’t see why they would stop developing measures

  3. ricky June 11, 2010 Reply

    not working.. trash.. dont post for the F%^& of it, lets stay tune for more GEOHOT

  4. keith June 11, 2010 Reply

    Right, downloaded the very latest version of redsnow0.9.5b5-1

    All workes well apart from Cydia, this does install with the stated white icon, but when you run it it opens for a split second then closes again

    will not stay running


  5. keith June 10, 2010 Reply

    It did go through process for me but after there was no Cydia installed

  6. Mauricio June 10, 2010 Reply

    mmm nice tutorial, but I got Recovery Loop on my 3G. thank!

  7. Muhamamd June 10, 2010 Reply

    Boss this way of jailbreaking is not working once it will jailbreak it will not be able to start iphone and u’ve to restore it to 4.0 firmware or 3.1.3 and also going to recovery mood,that means this is still not avaible……

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