Example and Download Custom iOS 4.0 Firmware (IPSW)

Apple pushed the iOS 4.0 firmware for both iPhone and iPod Touch on June 21st. Soon after the iOS 4 release, Dev-Team released the PwnagTool 4.0 to jailbreak iOS 4.0 firmware on iPhone 3GS, iPhone 3G and iPod Touch 2G. PwnageTool creates custom iOS 4 firmware tojailbreak iPhone and iPod Touch 2G. So, simply restoring the custom iOS 4.0 you iPhone/iPod Touch will be jailbroken.
[You must be registered and logged in to see this image.]PwnageTool is available for Mac OS X only. So, only Mac users are
able to create custom iOS 4 firmware using PwnageTool. What if you’re
on Windows? and do not own a Mac or don’t want to go through the PwnageTool procedure?? if so, this topic is for you.
Here you can download iOS 4.0 Custom firmware for iPhone 3GS, iPhone 3G and iPod Touch 2G. These custom iOS 4 firmwares are created with PwnageTool and can be restored via iTunes. (Download links below)
IMPORTANT

• We Strongly recommend you to read the PwnageTool release note posted here before proceeding.
  
• iPhone 3GS: These custom firmwares work for old BootRom models only [How to: check iPhone 3GS BootRom
  ] + iPhone 3GS MUST already be jailbroken (Not with Spirit jailbreak).
  
• iPod Touch 2G: Non-MC models only
  
• There are two types of Custom Firmwares available for download below.
  
  
  
  • ACTIVATED: This custom IPSW file is for users who want to unlock their iPhone after jailbreak which means they are NOT on Official Carrier.
    
  • NOT ACTIVATED: This custom IPSW file is for users who are on Official Carrier.
    

So make your choice wisely.
How to Install Custom iOS 4.0

1. Download custom firmware (IPSW) (all parts) for your device from links below.
   
2. Join the splitted custom IPSW file by unpacking them:
   
   
   
   • Mac Users: use BetterZip ( or what ever you want )
     
   • Windows Users: use HJSplit ( or what ever you want)
     

You’ll get a .zip or .rar file. extracting the zip/rar file will bring the IPSW custom firmware.

Put iPhone in recovery mode. (How to: put iPhone into Recovery Mode) First time jailbreakers should put their Device into DFU Mode.

Press the Shift key for Windows or ALT for Mac and click restore and use the custom IPSW.

It will start restoring your iPhone/iPod Touch which may take 10mins and will jailbreak it.

iPhone 3GS and 3G users who want to unlock iPhone needs to install UltraSn0w using following guide:

How to: Unlock iOS 4.0 using UltraSn0w 0.93

Disclaimer: These
custom firmwares are for testing and educational purposes only. Use
them at your own risk. We can not be held responsible if anything goes
wrong.
Disclaimer: These custom firmwares are for
testing and educational purposes only. Use them at your own risk. We can
not be held responsible if anything goes wrong.
Download Custom iOS 4.0 Firmware (IPSW Files)

iPhone 3GS Custom iOS 4 Firmware IPSW

Activated (for UnOfficial Carrier Users)

RAPIDSHARE
iPhone2_1_4.0_8A293_Custom_Restore_Activated_ipsw. zip.001
iPhone2_1_4.0_8A293_Custom_Restore_Activated_ipsw. zip.002
iPhone2_1_4.0_8A293_Custom_Restore_Activated_ipsw. zip.003
iPhone2_1_4.0_8A293_Custom_Restore_Activated_ipsw. zip.004

NOT Activated (for Official Carrier Users)

RAPIDSHARE
iPhone2_1_4.0_8A293_Custom_Restore_Not_Activated.z ip.001
iPhone2_1_4.0_8A293_Custom_Restore_Not_Activated.z ip.002
iPhone2_1_4.0_8A293_Custom_Restore_Not_Activated.z ip.003
iPhone2_1_4.0_8A293_Custom_Restore_Not_Activated.z ip.004

iPhone 3G [b]Custom iOS 4.0 Firmware IPSW[/b]

Activated (for UnOfficial Carrier Users)

RAPIDSHARE
(With Multitasking, Wallpapers and Battery Percentage Enabled)
iPhone1_2_4.0_8A293_Custom_Restore_Activated_Multi tasking.zip.001
iPhone1_2_4.0_8A293_Custom_Restore_Activated_Multi tasking.zip.002
iPhone1_2_4.0_8A293_Custom_Restore_Activated_Multi tasking.zip.003
iPhone1_2_4.0_8A293_Custom_Restore_Activated_Multi tasking.zip.004
(No Additional Functionality)
iPhone1_2_4.0_8A293_Custom_Restore_Activated.zip.0 01
iPhone1_2_4.0_8A293_Custom_Restore_Activated.zip.0 02
iPhone1_2_4.0_8A293_Custom_Restore_Activated.zip.0 03
iPhone1_2_4.0_8A293_Custom_Restore_Activated.zip.0 04

NOT Activated (for Official Carrier Users)

RAPIDSHARE
(With Multitasking, Wallpapers and Battery Percentage Enabled)
iPhone1_2_4.0_8A293_Custom_Restore_Not_Activated_M ultitasking.zip.001
iPhone1_2_4.0_8A293_Custom_Restore_Not_Activated_M ultitasking.zip.002
iPhone1_2_4.0_8A293_Custom_Restore_Not_Activated_M ultitasking.zip.003
iPhone1_2_4.0_8A293_Custom_Restore_Not_Activated_M ultitasking.zip.004
No Additional Functionality)
iPhone1_2_4.0_8A293_Custom_Restore_Not_Activated.z ip.001
iPhone1_2_4.0_8A293_Custom_Restore_Not_Activated.z ip.002
iPhone1_2_4.0_8A293_Custom_Restore_Not_Activated.z ip.003
iPhone1_2_4.0_8A293_Custom_Restore_Not_Activated.z ip.004

Fix error 1604, 16xx, 29 During Custom Firmware Restore

You may encounter error error 1604, 1600, 1601, 1602, 1603, or 29 during
custom firmware restore. We have compiled possible solutions to this
error here:

• How to: Fix error 1604, 16xx or 29 Custom firmware Restore
  

Also checkout:

• AppSync 4.0 – Install Cracked Apps on iOS 4
  
• Jailbreak iOS 4 Firmware (All Guides)
  
• Jailbreak iOS 4 with PwnageTool
  
• Jailbreak iPhone 3GS iOS 4 with PwnageTool
  
• Jailbreak iPhone 3G iOS 4 with PwnageTool
  

latest updates on iPhone 4, iPod Touch and iPad jailbreak and UltraSn0w and other unlock stuff and iOS.

Link
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download snowBREEZE form here
Quote:

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and use for making custom firmwaer